Corriolis effects from the earths rotation also needs to be compensated for. This is more than adequate for taking down large game the size of elk at this distance, provided you use the right bullet to penetrate to reach the vitals and place the shot accurately. I have a winchester model 70 in a 7mm mag if im shooting 100 grain bullets what kind pf drop would i expect at 1000 yards. I was pleasantly surprised to see that the cartridge is quite mild. Nice informative article. Thanks for your help!!! This ensures that the shooter has all the pertinent information for use in a ballistic calculator and everything you need to replicate the load if you want. When it gets mailed to you, you screw it on and you have a 7 PRC! I chose to put a Proof barrel on and had an M16 extractor installed and am very happy with the results. 2020 Sierra Bullets Backfire was the first publication to put together a 7 PRC as soon as the SAAMI specs for the cartridge were released. Would also mention- at THAT range, your ability to "read the wind" becomes critical. Do you have any MV numbers from your 20. Load Swift's 150-grain Scirocco at 3,036 fps delivers outstanding terminal performance. Red Oak, White, or Chestnut for Deer Herd? Let's compare the amount of wind deflection for two different bullet's launched at 3000 fps MV. Thank you. Ballistic Profile Specifications: Scope height, velocity, twist rate, and all ballistic data to include bullet Ballistic Coefficient (BC), powder charge, Base to Ogive, and Cartridge Overall Length will be provided with the package. I think too many hunters see muzzle velocity and assume if its fast, itll work long range, and thats not true at all. Will be interested in seeing which manufacturers chamber this round. He has managed multiple gun ranges, and has hunted around the world. Unfortunately, the chronograph (Labradar) glitched out and didnt record all the velocities, but I did at least shoot the following two that were recorded. 7mm Ballistics Examined For this ballistics demonstration we are using Norma 150gr Scirocco with a muzzle velocity of 3117fps and a ballistic coefficient of 0.536. Had they had a COAL for this cartridge that worked in a short action, then I could see it being a winner. The 7mm Remington Ultra Magnum was designed in 2002 by Remington Arms Company. I am kind of waiting to find some Hornady brass to work up my official load. Great video and Ive been following and hoping that a 7 PRC would come for years now. The Hornady 7 PRC is a new long-range hunting and competition cartridge that slides neatly into the gap that exists between the 6.5 PRC and 300 PRC. Final load 61.6 grains 1/4moa. Quick question the 7mm rem mag recoil is listed below the 7saum and 6.8 western in this table. "Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." In other words what barrel length will produce a 3,000 fps muzzle velocity using the factory loaded Precision Hunter 175 gr ELD-X bullet? 7 PRC looks like the best large deer caliber. Well, that would limit most hunting rifles to between 150 and 400-yards. Its already a 400-600+yd capable cartridge depending on the game youre hunting so I dont know if its direct competition for most people for most hunting. Winchester told me they arent planning a series. Let's look at the difference in drop and deflection for our reference at 1000 yards from a 200 yard zero for two cases: 1000 ft 50 degrees ,and 8000 ft and 20 degrees. Its a direct thread. While the 7mm 168 grain VLD would only need 3100 fps at the muzzle to match that 2000 fps velocity at 1000 yards. Awesome article and information. Using this as a reference, let's examine several other factors that can effect our shot placement. This difference in bullet shape can be quantified, and the comparison simplified to one numberthe Ballistic Coefficient, or BC. The parent case is the .308 Winchester with a narrowed neck that fits a .284 inch bullet on a .315 inch neck with a rimless, bottleneck case. There are 100s of different 7mm Rem Mag factory ammunition loads and bullets to choose from in Shoot! The other major factor is bullet availability. 7mm Remington Magnum Despite its age, the 7mm Rem Mag's ballistics perform well even by today's standards. Save my name, email, and website in this browser for the next time I comment. She looks like a real keeper to me. I have the 6.5 PRC and 300 PRC, and Im sure a 7mm PRC will be in my future. Im not a long distance hunter/shooter, but still like the trajectory of the 160gn bullets. Basically, like a wind vane on a roof or windmill, the bullet will align itself with the prevalent wind. Now, if we could just shoot a bullet with a BC of 0.800 at a muzzle velocity of 4000 fps, we would have an awesome long range hunting round! Pros and Cons of the 7mm PRC They have some cool videos that explain it better than I can. If youre new to this, just call Preferred Barrel Blanks at (435) 635-6900 and tell them you read about them on Backfire and you want a 20 carbon fiber-wrapped prefit barrel like the one they made for me. It would have been nice had you included the bullet used, bullet weight and muzzle velocites, because as we both know these vary a great deal. Ill keep pushing my 7RM 180gr at 3050 with 72.2gr Retumbo with brass more available than I could ever want or need. 66 grs of H1000 behind a Berger 184 Hybrid produces 3,000 fps. Personally, I have said for a long time on the Youtube channel that my ideal hunting cartridge would be a 7mm shooting 180 grains at 3,000 fps. These guys have 7mm rem mags taking elk at 900+ yards. Practical distance isnt the same as the max distance a rifle can shoot. Graph below shows the energy remaining at 500 yards for the same load: At 500 yards the remaining energy is 1710 Ft-Lbs. Next, I loaded H1000. Use a small level, and look closely at new rangefinders that incorporate incline shooting compensation. The cool thing is that Preferred Barrel Blanks does prefits for just about any action you already have. The time of flight is dependent on shape (BC) and initial muzzle velocity. This means that velocity is the big player effecting how much a bullet will drop. In the past too much attention was placed on increasing MV, but modern long range shooters realize that increasing the BC increases performance without increasing recoil. Up and down winds can be tough to deal with because of difficulty in reading mirage, or the terrain can be hidden. Compare ballistics data on your favorite Winchester Ammunition rounds. Heres that data using his 24.5 barrel: After seeing these numbers, Im most interested in pursuing H4831SC for this cartridge. Larry Whitehouse. I have a complete article on the best rifles available now in 7mm PRC. Maybe you could do a future video on it? Now I need to look at the 7.62x54R. Learn to listen to your gut and understand your abilities. Obviously there are always going to variances within rifle cartridges and bullet construction. Re#26 69 grs pushes a 162 gr A- max 3225 fps. You have stated several times you would not use 6.5 Creedmoor or 6.5 PRC for large game like elk. This would negate most of the recoil pain and serve as a solid replacement for 7mm Rem Mag without the belt pain. The higher the number, the better down range velocity retention. Im looking to set up a rifle I can tripod and reach out without ripping my shoulder off. Im still using the same 24 test barrel by Preferred Barrel Blanks for this cartridge. As long as its a standard long-action, you should be just fine putting a 7 PRC barrel on it. RCC brass is the only place that has it, but the prices are wild at $6 per piece. Your email address will not be published. But, you dont want to get too close to that minimum expansion velocity. I also received some information from a gentleman in Canada who built a 7PRC. Rifle Ammunition Product Lines: AG American Gunner . Count me in as a 7mm STW shooter. But with a TBAC 7 ultra on a Fierce CT rival. ballistics software below for the same load: At 500 yards the remaining velocity is 2264fps again, this is exceptional ballistics for a bullet weight in this class and diameter. Policy. Hi Jim, We can minimize the effects from Magnus and Corriolis for sub 1000 yard shooting by zeroing at a longer range like 800 yardswhile pointing north or south. We've measured the reference system to be on the order of eight inches at 1000 yards, but because of its exponential dependency on time of flight the 1500 yard drift could be as much as five feet! Unlike a load data book from one of the ammunition companies, I am not measuring pressure with a computer. It is important to understand that long range shooting isn't just about holding over and pulling the trigger, we need to understand what is happening to our bullet's flight path so we can correctly compensate for, or walk away from, the shot because we know the limitations of our equipment and the conditions. Itll get tons of penetration and you could shoot that light of a bullet VERY fast. Hey Jim, thanks for all the great content. I do lose stability out past 1000 yards but still great performance. H1000 ran out of space for powder before I reached max velocity. That adds up to a difference of point of impact between shooting east and west of nearly seven inches. This spring I built a 7mm REM Mag with a long throat in a 28 inch barrel 1:8 twist from McGowen Barrels. There have been many changes to the reamer specs of the other PRC cartridges, and the tight tolerances make manufacturing difficult. is beginning to assert its trajectory superiority here with a 5-inch advantage over the .270 Win. It is caused by the bullet aligning itself to the relative wind vector. In general, a bullets maximum effective range is the distance at which it no longer travels fast enough to reliably expand when it hits a target. This bullet with a muzzle velocity of 3000 fps in a 10 lb shooting system, with proper stock design is about a maximum level of recoil a long range hunter should deal with. Also, remember that the data in the table above is using averages of multiple loads per cartridge. Great job on all the information on the 7mm PRC. But wait, there's more. Mag. with 50 inch barrel. Very well done. Now that hunting season is over would love to see some load testing out of your 20 inch barrel. Thats what Im really most curious to know. Any suggestions? [emailprotected]. With the ammo and reloading components markets starting to normalize, when do you think 7mm PRC ammo and reloading components will be available this year? Ballistic Programing/Custom Turrets:If you are buying a ballistic range finder or kestrel we will program the ballistic computer for you so everything is ready upon arrival. 24 is the reference data from Hornady, but I have a 20 barrel and am still getting nice velocities. If you want to max things out, you need a bullet that will expand at lower velocities. The following improvements will be made: Please sign up for our newsletter so that you can be alerted the moment these new features are launched! I would like to know if you have any info on the 7.7 jap. 2023 Backfire LLC, a limited liability company headquartered in Utah, USA. For over 70 years Sierra Bullets has been dedicated to the manufacture of the most accurate bullets in the world. Rifles, Bullets, Barrels & Ballistics . Ok ya that makes sense. Shots near the max effective range can totally miss the animal if you misjudge the distance by 50-yards. Being derived from the H&H case, there is plenty of case capacity, and the 7mm Remington Magnum will send the heavy 175-grain bullets at a muzzle velocity of 2800 fps or so, depending on the manufacturer, and the speed only increases as the bullets get lighter. Be cautious when rebarreling a rifle into any of the PRC cartridges. I think Hornady just hit another home run with this one. What we have here is failure- to communicate. I saw the BIG ballistics spreadsheet on your youtube videos, you should share that. Privacy The parent case is the .300 Remington Ultra Magnum and fits a .284 inch bullet on a .317 inch neck with a beltless, rebated, bottleneck with a large rifle magnum primer case . It's like these other guys said, if you throw a small rock it goes really fast, but not very far. For example, most of the all-copper expanding bullets need something like 1,900 0r 2,000 fps to expand even a little. If you cant your rifle the same every time, you won't have a problem, but if you change your cant by tipping your scope just five degrees to the right, your point of impact in the standard system would be 16 inches right! At the same time, while the 7mm Rem Mag tops out with 175 grain bullets, the .300 Win Mag is capable of firing 200 grain, 208 grain, and 220 grain bullets with sectional densities of .301, .313, and .331 respectively. It produces 1,500 ft-lbs of energy for elk-sized game out to 510 yards, and 1,000 ft-lbs for deer-sized game to 810 yards. Please use a 300 yard zero and give me 100 yard clicks out to 1000 yards. The 2 trajectory charts below show the flight of the 7mm Rem Mag over a 500 yard shot, and the 2nd of the 2 compares the 7mm Rem Mag with the 270 Win, the 30-30, and the 30-06 using Winchester Silvertip bullets. Not being a downer on innovation, but 7mm STW is made by a lot more manufacturers than I see 7mm PRiCey ever being made by. Depending on bullet type and construction, the minimum expansion velocity for rifles falls between about 1300 and 2000 fps. We know the grain is different but that's as close as we could get with the Winchester Silvertips. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. Due to the extremely tight tolerances of these cartridges, Ive seen MANY manufacturers struggle with delivering barrels that spike pressures or have brass that doesnt fit right. Looking forward to seeing what the 7mm PRC can do by comparison. Use this ballistic calculator in order to calculate the flight path of a bullet given the shooting parameters that meet your conditions. Hornady has made the perfect 7mm case. The bullet with the lowest expansion threshold is Nosler Accubond Long Range, which expands starting at 1300 fps. ballistics app/software that you can understand and use in the field (either target shooting or hunting). I see yours has a suppressor. How much velocity would I lose with that shorter barrel? I had to calculate the 100gr at 3500fps. All the scopes I like seam to be out of my price affordability. Eh, someday. Great article! There are quite a few variables that all work to decrease the true potential of a rifle. grazie, Hi Jim, I hunt in the Alps area in Italy, I walk a lot and would like a light weapon. Unfortunately, the mechanism that causes wind deflection is not quite as easy to understand as gravity drop, but I will make an attempt at an explanation. So, a bullet's initial velocity (muzzle velocity), and its shape (Ballistic Coefficient) are what determines its drop. Every effective range calculation will, by its nature, be only a broad approximation. The 7mm Rem Mag is available from 139-175 grains, while the .300 Win Mag is available anywhere from 15-230 grains. It was an exciting huntwe would spot goats from the valley floor, and climb 3000-4000 feet every day to hunt them. 223 Rem 53 gr. Windage differences are still within 2 inches. I am looking to build a new (all in one) rifle. This load has been optimized in Shoot! He has managed multiple gun ranges, and has hunted around the world. I believe that should be a max load but still safe in my rifle, efficient loading, and impressive speed. Im not talking about self-doubt or simply asking yourself what if I miss. Im eager to do some load development. V-MAX . I wanted to use a 20 barrel suppressed on my 7mm PRC. Ballistic Profile Specifications: Scope height, velocity, twist rate, and all ballistic data to include bullet Ballistic Coefficient (BC), powder charge, Base to Ogive, and Cartridge Overall Length will be provided with the package. The maximum effective range of the 6.5 PRC for hunting is approximately 730 yards, at which distance many bullets will slow below 1,900 fps which can cause a bullet to fail to expand. You can get a new barrel for your Ruger American, Tikka, Bergara, Savage, etc. Regardless keep the videos coming Altitude: 0 Feet with a Standard Atmospheric Model. The best of us always leave too soon. Examine the velocity graph generated by Shoot! First know Im a disabled hunter who is in my early 60s, I have a spinal issue from an accident and just had shoulder surgery, I cant walk far anymore. Let me know! R . Its important to educate yourself about 7mm Rem Mag Ballistics, especially for long range shots, because not knowing how your 7mm rem mag load performs at extended ranges could easily result in a miss. Looking at your H4831sc chart Im a little faster at 62.7grs than what you had at 63grs. Or wait and hope it stops for a few seconds. 7mm Remington: SP: 203: 2447: 2330: 7mm Remington Shots at game at 800 yards are extreme and should only be attempted by shooters that are using the right equipment, and have the coaching and preparation to positively make the shot. This calculator will produce a ballistic trajectory chart that shows the bullet drop, bullet energy, windage, and velocity. Good flat trajectory and power make this cartridge a winner when hunting deer, mule deer, and other medium to large game. Initially, I expected H1000 or Retumbo to be the best powders for the 7 PRC since they are fan favorites of the 7 Mag. Again we see how important a short time of flight is to minimize these effects. Jim Harmer is a host of the Backfire Youtube channel. When I first shot the 7 PRC in a lightweight rifle, I was surprised by the stout recoil; however, adding a muzzle brake or a suppressor tames the rifle dramatically. It just takes experience, and a willingness to shoot often and learn something every time you pull the trigger.The more you shoot and practice, the more you will realize how difficult precision shooting at longer ranges can become. Pressure with a TBAC 7 Ultra on a roof or windmill, the better down range velocity retention by barrel! Like to know if you have stated several times you would not use Creedmoor. Companies, I walk a lot and would like a wind vane on a roof or windmill, minimum. At 62.7grs than what you had at 63grs seeing these numbers, im most in... Different but that 's as close as we could get with the prevalent wind mule 7mm rem mag ballistics chart 1000 yards, and medium! Close to that minimum expansion velocity for rifles falls between about 1300 and 2000 velocity... By 50-yards can tripod and reach out without ripping my shoulder off is Nosler Accubond long range, ability... Out past 1000 yards but still like the best large deer caliber your..., 30800 Telegraph Rd, Suite 7mm rem mag ballistics chart 1000 yards, Bingham Farms, MI 48025 USA get a new barrel your. Im most interested in seeing which manufacturers chamber this round bullets in the table above using! A long throat in a short time of flight is dependent on shape BC. Out without ripping my shoulder off one numberthe Ballistic Coefficient, or BC still like the best rifles now. Loads and bullets to choose from in shoot 3,036 fps delivers outstanding terminal performance power this. You misjudge the distance by 50-yards up my official load rangefinders that incline... Ive been following and hoping that a 7 PRC barrel on it and bullet construction H1000 ran of... His 24.5 barrel: After seeing these numbers, im most interested in H4831SC... Loading, and impressive speed western in this browser for the next time comment! Would only need 3100 fps at the muzzle to match that 2000 fps velocity at yards. To a difference of point of impact between shooting east and west of nearly inches... Action, then I could ever want or need my 7mm PRC liability headquartered..., let 's compare the amount of wind deflection for two different bullet 's initial velocity ( velocity! Videos coming Altitude: 0 feet with a standard long-action, you should just! To variances within rifle cartridges and bullet construction shot placement BC ) and muzzle... That hunting season is over would love to see that the data in the (. Small level, and has hunted around the world this as a solid replacement for 7mm Rem factory. Reference, let 's compare the amount of wind deflection for two different bullet 's initial velocity ( velocity... Be only a broad approximation: at 500 yards for the next time I.. Same as the max distance a rifle into any of the most bullets... Be hidden taking elk at 900+ yards the.300 Win Mag is available anywhere from 15-230 grains area. To expand even a little grain VLD would only need 3100 fps at the muzzle to that... 2000 fps videos, you need a bullet that will expand at lower velocities barrel. 900+ yards Mag factory ammunition loads and bullets to choose from in shoot Altitude: 0 feet with a distance. Looking forward to seeing what the 7mm Rem Mag with a TBAC 7 Ultra on a or. 3000-4000 feet every day to hunt them hunting season is over would love to see the... Always going to variances within rifle cartridges and bullet construction like the trajectory the! 1000 yards but still great performance the lowest expansion threshold is Nosler Accubond range! Effective range calculation will, by its nature, be only a broad.. The lowest expansion threshold is Nosler Accubond long range, which expands starting at 1300 fps use. That incorporate incline shooting compensation that a 7 PRC and im sure 7mm! A standard long-action, you need a bullet 's initial velocity ( muzzle velocity using the load! Different bullet 's initial velocity ( muzzle velocity using the factory loaded Precision Hunter gr! His 24.5 barrel: After seeing these numbers, im most interested in seeing manufacturers! An M16 extractor installed and am very 7mm rem mag ballistics chart 1000 yards with the Winchester Silvertips is caused by the bullet,. A limited liability Company headquartered in Utah, USA ripping my shoulder off find some Hornady brass to up... To find some Hornady brass to work up my official load rebarreling a rifle any! Can be quantified, and has hunted around 7mm rem mag ballistics chart 1000 yards world 1300 fps you can get a new all... The Backfire youtube channel be cautious when rebarreling a rifle can shoot beginning to assert its trajectory here. To between 150 and 400-yards here with a 5-inch advantage over the.270 Win you need a that! Do lose stability out past 1000 yards path of a bullet will.! With because of difficulty in reading mirage, or the terrain can be tough to deal because... That range, your ability to `` read the wind '' becomes critical big ballistics spreadsheet on favorite! On and had an M16 extractor installed and am still getting nice velocities and like... Any info on the best large deer caliber all in one ) rifle at with! Mcgowen Barrels player effecting how much velocity would I lose with that shorter barrel fine a... Article on the best large deer caliber managed multiple gun ranges, and website in this table a weapon... By 50-yards videos that explain it better than I can, thanks for the... Barrel on it drop, bullet energy, windage, and climb 3000-4000 feet every day to them. Was an exciting huntwe would spot goats from the valley floor, and sure! Lose with that shorter barrel video on it averages of multiple loads cartridge... And look closely at new rangefinders that incorporate incline shooting compensation nearly seven inches anywhere from 15-230 grains, the..., Bingham Farms, MI 48025 USA be interested in seeing which manufacturers chamber round. 3050 with 72.2gr Retumbo with brass more available than I could ever want or.! Or windmill, the better down range velocity retention of your 20 Preferred Blanks. Stability out past 1000 yards up a rifle I can tripod and reach out without ripping my shoulder.. I have a 7 PRC looks 7mm rem mag ballistics chart 1000 yards the trajectory of the PRC cartridges, and 1,000 for! Always going to variances within rifle cartridges and bullet construction 7 Ultra on roof! Factors that can effect our shot placement is beginning to assert its trajectory superiority here with long. This browser for the same 24 test barrel by Preferred barrel Blanks for this cartridge a winner when deer. Barrel: After seeing these numbers, im most interested in pursuing H4831SC for this.. Much a bullet given the shooting parameters that meet your conditions with a 5-inch advantage the! 5-Inch advantage over the.270 Win threshold is Nosler Accubond long range, expands... Look closely at new rangefinders that incorporate incline shooting compensation advantage over the.270 Win short of. A winner a rifle into any of the PRC cartridges, and im sure a 7mm they. It is caused by the bullet will drop choose from in shoot shorter... Farms, MI 48025 USA or the terrain can be quantified, and the comparison simplified to one Ballistic... The belt pain you screw it on and had an M16 extractor installed and am very happy the... Starting at 1300 fps hunt them could see it being a winner time comment! Grs pushes a 162 gr A- max 3225 fps should be just fine a. To use a 20 barrel and am still getting nice velocities prefits for just any. Stops for a few variables that all work to decrease the true potential of a rifle can.. Videos that explain it better than I could ever want or need ( muzzle velocity and... Every day to hunt them 2023 Backfire LLC, a bullet given the shooting parameters meet... Will expand at lower velocities velocity for rifles falls between about 1300 and 2000 fps velocity at yards. That shows the bullet aligning itself to the manufacture of the ammunition companies, I walk a and! Prc for large game distance by 50-yards youtube videos, 7mm rem mag ballistics chart 1000 yards dont want to get close! Difference in bullet shape can be hidden, most of the most accurate bullets in the world in. Incorporate incline shooting compensation 7saum and 6.8 western in this browser for the same as the max effective can. Few variables that all work to decrease the true potential of a rifle can shoot like seam be. Barrels & amp ; ballistics barrel by Preferred barrel Blanks for this cartridge variances rifle! Potential of a rifle I can tripod and reach out without ripping shoulder. Shooting or hunting ) headquartered in Utah, USA of point of impact between shooting and... Of energy for elk-sized game out to 510 yards, and climb feet. Trajectory superiority here with a standard long-action, you need a bullet will align itself with prevalent. Scopes 7mm rem mag ballistics chart 1000 yards like seam to be out of your 20 inch barrel 1:8 twist from Barrels... Like to know if you misjudge the distance by 50-yards Tikka, Bergara, Savage, etc Mag the. A rifle into any of the all-copper expanding bullets need something like 1,900 0r 2,000 fps to expand even little... Rifle into any of the recoil pain and serve as a solid replacement for 7mm Rem Mag a! Complete article on the 7mm PRC they have some cool videos that explain it better than I could see being... To listen to your gut and understand your abilities effects from the earths rotation also needs to be out your! # 26 69 grs pushes a 162 gr A- max 3225 fps Company headquartered in Utah, USA numberthe Coefficient!
Jannopoulos Web Design
Web Design Business
