Note that BOTH of these are a compressed load, so you couldnt really go much faster than this with H1000. The PowerRank is an estimation of the cartridge power. Save my name, email, and website in this browser for the next time I comment. They show how a 7mm with a 168 Berger has more energy down range than a 30-378 weatherby with a Barnes. You think they will come out with a 7mm Western? And were you making your own brass or using RCC machined brass? Hi Jim, Im a follower on YouTube, I really enjoy all of them. I saw the BIG ballistics spreadsheet on your youtube videos, you should share that. The first number is the value of this cartridge, and the last number is the value of the most powerful round in our bullet database. If you're after deeper penetration, look at the 139-grain Barnes VOR-TX Long. We will ignore any left/right effect, and focus on the vertical errors. While we have went to great lengths to make sure that it's as accurate as possible this rendering should not be used to generate specs for casings. As we examine the drop and deflection of a bullet it becomes apparent that BC and velocity are very important parameters for shooting at long range. while they work great at closer ranges, they will fail miserably if you want to push your shots out there. The #1 reason I recommend Preferred Barrel Blanks is because theyve sorted through those issues and can deliver problem-free prefit barrels. The first, and most obvious is the effect of gravity. The 7 RM is too established to go away similar to how the 300 PRC didnt completely eliminate 300 WM sales nor did they likely affect 30-06 sales. Any recommendations No obvious pressure signs, but I didnt feel I should compress further. They have some cool videos that explain it better than I can. Great article Jim. Shortening the H&H case to a length of 2.500 inches, and using a 25-degree shoulder, the 7mm Remington Magnum has an overall cartridge length of 3.290 inches. It is caused by the bullet aligning itself to the relative wind vector. NEED ADVICE!!! Did you perhaps mean 50 cm? Thats when little things cause failures. Great article! 2023 Backfire LLC, a limited liability company headquartered in Utah, USA. 300 PRC and 6.5 PRC ammo has challenging to find too, but is finally showing up with Federal and Sierra joining Hornady. The time of flight is dependent on shape (BC) and initial muzzle velocity. A range error at 1000 yards of only five percent would cause a difference in point of impact of nearly 28 inches! Look up bergerbullets.com. there are plenty of rifles capable of 1000 yards but if your looking for something that wont drop 10 ft there are better choices. Looking forward to seeing what the 7mm PRC can do by comparison. Simple as that. Just imagine a long slender VLD bullet compared to a flat nosed semi wad cutter. This is averaging several different loads to get these numbers for each cartridge, so we can compare apples-to-apples, but youre right that with ALL cartridges you could go up or down slightly depending on the load selection. It seems that the cartridge was designed to compress the load right at the point where youd reach pressure with these common powders. 2023 Backfire LLC, a limited liability company headquartered in Utah, USA. This load has been optimized in Shoot! Your rifle will be sent over to Evolved Munitions LLC who will then begin the load development process. This difference in bullet shape can be quantified, and the comparison simplified to one numberthe Ballistic Coefficient, or BC. I really want to compare recoils of suppressed rifles. (888) 223-3006 Again, BC and velocity is important. Keep it up! Now, I either need to find ammunition to shoot, or new brass. Most rangefinders can have errors of at lease two percent at 1000 yards, even if you do everything else correctlykeep in mind that it is very easy to range an object just behind or in front of your target. Personally my mind goes towards hot rodding medium-to-heavy-for-caliber monos in the 150-175 grain range at 3200 -> 3000+ for long range expansion on game. Select Your Gun Type. Sample Trajectory showing the bullet path crossing the line of sight.Because gravity causes the bullet to drop, the longer a bullet takes to reach its target, the more time gravity will have to pull it towards the earth. To optimize performance of the 7mm RUM, Remington engineers produced a chamber design utilizing .400" (10mm) free bore. I see yours has a suppressor. The higher the number, the better down range velocity retention. Ive been curious how it would shake out/compare to the 7SAUM when seated long. 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. As a competition gun and a capable do all cartridge the 7 PRC absolutely checks just about every box there is I look forward to adding it to my 7mm-08 (for 120-150gr bullets) and 280AI (for 140-175gr bullets) as a capable 7mm magnum that isnt tremendously overbore and specialized for heavier (160gr+ bullets). do you know the 7mm Blaser Magnum? The 7mm RUM is identical to a high performance race engine in every sense. Commissions are earned for links to Brownell's, Amazon, MidwayUSA, GoHunt, OpticsPlanet, Sportsman's Warehouse, and other retailers. Ill keep you posted! It is a great investment if you want to get into long range shooting and will be especially useful if you handload. We use cookies to provide you a better user experience. Remember, they dont show you the times it didnt work. So youre telling me Springfield Armory is planning on making a 7 PRC Waypoint 2020 in 2023 ?!?!?! Final load 61.6 grains 1/4moa. However, its pointless to attempt such shots if you dont optimize 7mm Rem Mags point blank range during sighting-in. 2950fps with 32 inch barrel. Rifle Type Both the 7mm Rem Mag and the .300 Win Mag are only chambered in standard/long action rifles. Backfire was the first publication to put together a 7 PRC as soon as the SAAMI specs for the cartridge were released. Again we see how important a short time of flight is to minimize these effects. Be intentional and smart with each shot. Wind Drift diagram showing how the forces act on a bullet. If the 7 PRC has significantly more recoil (which your chart has it showing about 25% more) then I dont know that 280AI will be greatly affected for hunters. Figure 1. I enjoy your videos. We know the grain is different but that's as close as we could get with the Winchester Silvertips. Seldom is the practical max the same as the true max distance. I ABSOLUTELY would use 7mm PRC on elk. Most people will like 22, but I like em short! document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 7mm Remington Magnum ~ 150 Grain ~ Trajectory Chart. A hunting firearm can only be so heavy, and a smart shooter will only subject himself to a limited amount of recoil. I have been saying for years a lot of the 2.5 inch cases would have been better off reduced to 2.250 2.3 inch .I honestly think the 26,27 and 28 would have hit the money had nosler gone that way . After that velocity diminishes very quickly. 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. The 7mm PRC is similar to a 7mm Rem Mag, but it can shoot heavier bullets with higher BCs, has no belt which causes problems for reloaders, and slightly less case capacity so longer barrels are not necessary. Couple questions for you. The effective range of a bullet can be measured in different ways because it depends on what the bullet needs to be effective at doing. I shoot only 7mm rem mag in 3 different set ups and for me, there arent nearly enough pros to just switch the tack on the near impossible feat of obtaining brass. I wanted to use a 20 barrel suppressed on my 7mm PRC. Still havent been able to find brass. Leave nothing to chance, because great things dont happen on accident. Just wondering. I have a table showing the highest BC 7mm bullets, but here are a few bullets likely to be popular in the 7mm PRC: Below are the specified twist rates for many similar cartridges to the 7 PRC. While I was thinking that the 7 prc might be the way to go, Im just going to re-barrel my 7mm weather with a faster twist! 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. Sounded like your load data charts for the 7mm PRC were all done with 24 test barrel. Its certainly true that bullet/load selection will make a big difference. Now I think that build is going to be a 7 PRC. Practicing in these conditions can yeild valuable experience.I'm always learning about how to become a better shooter, and I still make mistakes. I was hoping to optimize the cartridge . 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. I quickly saw that the 4 fewer grains of case capacity in the 7 PRC made these powders not ideal. In our next article we will look at how to calculate and compensate for long range shooting, and the equipment and programs that will do it. Ballistic Table Ron Spomer 7mm RM, 2,900 fps from 24" bl. Max range 600yard, would like to shoot the 180s. Centerfire Handgun. 7 PRC looks like the best large deer caliber. Ive constructed a similar table that takes into account bullet construction, including expansion ratios and weight retention over time, and Id be curious to get your opinion on it. You can see from the graph that the 7mm is comparable to the 30-06, and 270 in flight, and much better than the 30-30. He is a well-known entrepreneur, having started many successful online brands, and lives in St George, Utah. @Jim Harmer I know this is a very hard list to compile, I do appreciate your attempts to educate in a common sense way. Had they had a COAL for this cartridge that worked in a short action, then I could see it being a winner. 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. how will the 7mm prc compare to the 7mm sherman short or 7mm sherman max. Very impressive ballistics. The specified twist rate for each cartridge dramatically impacts the ability for a firearm to spin a bullet fast enough to stabilize a long bullet in flight. I am looking to build a new (all in one) rifle. I converted a Weatherby 6.5 PRC Meateater to the 7 PRC. Magnus spin drift will cause a bullet to drift right for a right hand twist barrel, and the amount is proportional to the square of the time of flight. Trying to decide between the new hot rod 7prc and the old standby (perfect) .280Ackley. H1000 ran out of space for powder before I reached max velocity. The 7mm PRC will beat the following cartridges in sales over the next 20 years: 280AI, Gunwerks LRM, and the 7mm Rem Mag. Worked up load with 195 bergers. I expected it to go a little faster in the CX due to the lighter weight, but copper bullets can also increase pressures, so it seems that Hornady wasnt able to get any increased speed out of it. The highest being the 180 grain 7mm. It resists wind drift well. Unfortunately, as hunters we have other limitations that force us to settle for equipment with lower BC values and muzzle velocities. What we have here is failure- to communicate. If it performs like my 6.5 PRC and 300 PRC, Im guessing it will be a winner too. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. To do load development before this speed up happens will render the load development useless. All three are excellent choices for long-range hunting ammo.. Please use a 300 yard zero and give me 100 yard clicks out to 1000 yards. JavaScript is disabled. Please keep the good stuff coming. Privacy Heres a link to it. Ballistics and Drop for the 7mm Remington Magnum Cartridge Type: Rifle Height: 2.5" Width: 0.532" Average FPS: 3024 Average Energy: 3106 Average Gr: 153 Recoil: 2.06 Power Rank: 4.63 of 20 In the 1960's Remington created the 7mm Remington Magnum based of the 375 H&H cartridge design. Im not sure that muzzle velocity would have helped this discussion, though. Apr 17, 2011. load. This difference in bullet shape can be quantified, and the comparison simplified to one numberthe Ballistic Coefficient, or BC. Regarding the 175 Gr ELD-X, how many grains of the H4831SC did your 20 barrel like the best? https://bobp.cip-bobp.org/uploads/tdcc/tab-i/tabical-en-page36.pdf. Ive got it sending the 162 grain ELD-X 3200 FPS. rating at 4,200 fps, it would miss. 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