data [PDF] **includes new A-Tip ® Match load data 260 Rem 147-153 gr. The Smith & Wesson Performance Center M&P9 Shield EZ and the Taurus G3c are vastly different,... David Fortier talks with Jeff Hoffman of Black Hills Ammunition about the evolution of the .308 Win. That’s a difference of only 2.6 grains. If the capacity of the 243 Winchester is a bit greater than the 6mm Creedmoor, why are some of the maximum charge weights listed in the 2018 Annual Manual heavier and velocities higher for the 6mm Creedmoor? Necking down cartridge cases for bullets of smaller diameters has been going on for a very long time. Cartridge Bullet Weight Model Powder Charge PRIMER Brass FPS ; 6mm Dasher : Berger : 109 : Hybrid : Varget : 31.6 : CCI 450 : Lapua BR : 2888 : 6mm BR Norma : Berger The table below compares a 90gr Hornady ELD-X (.409 BC) load in .243 Winchester to a 103gr Hornady ELD-X (.512 BC) 6mm Creedmoor load and a 143gr Hornady ELD-X load (.625 BC) in 6.5 Creedmoor. Mag. I’m now able to attain approximately 1/4 MOA performance when things (including my shooting) are “dialed in”. Next question. I'll be shooting the Berger 109 Long Range Hybrid Target. Continuing on with factory rifles with standard S.A.A.M.I. From head to beginning of shoulder, the 243 case is a bit longer, but the Creedmoor case makes up part of the difference in gross capacity by having slightly less body taper, a sharper shoulder angle, and a longer neck. This particular.243 Winchester load drops below the speed of sound around 1,150 yards, but the 6mm Creedmoor stays supersonic out until around 1,375 yards and the 6.5 Creedmoor doesn’t cross the sound barrier until around 1,450 yards. Here are some of the stories related to this rifle published so far: 1. The 6mm Creedmoor story may eventually read the same except for the fact that in addition to being an excellent choice for use on deer-size game, it is better suited for varmint shooting than its 6.5mm parent. 6mm Creedmoor Load Data The 6mm Creedmoor, made by necking down the 6.5 Creedmoor case, is easy to handload and growing in popularity in hunting and competitive shooting. While lead-core bullets are usually more accurate with less free-travel, you might get lucky as I did with the 70-grain Sierra MatchKing and find an exception that works. The 0.058-inch pin in Redding dies for both Creedmoor cartridges works with both flash hole diameters. INDICATES MAXIMUM LOAD — USE WITH CAUTION Rifl e Data 80G RAINB ULLETS 6mmeC edr mo or SECTIONAL DENSITY: 0.194 DIAMETER: 0.243" 80 G. grMX ® Item No. Nosler Inc  |  Privacy  Use  Order Processing. When seating bullets for both rifles, a Redding Competition die was used. All cases were then run through a Redding Type S bushing-style neck sizing die with a bushing 0.002 inch smaller than the neck diameter of a loaded round. Rifling twist rate for most 243 Winchester rifles is 1:10 inches, and that’s too slow to stabilize pointed bullets much longer than 1.150 inches. All Shooting Times subscribers now have digital access to their magazine content. 250 Savage 25 WSSM 25-06 Remington 257 Roberts 257 Ackley Improved 257 Weatherby Magnum.264″ Diameter. The Redding Series C full-length resizing die on my reloading bench worked perfectly. When it comes to choosing the proper rifling twist rate for a particular bullet, its length matters more than its weight. That was followed by four dry patches through the bore with one fouling shot fired prior to shooting the next series of groups. I have RL 16 and H4350...can I get opinions on which of those you prefer and how much you're using? 6mm Creedmoor Load Data The 6mm Creedmoor (6CM) was the second most popular cartridge used by these top shooters, with 20% of the top-ranked shooters choosing to run it. Load Data. Find what you need in four easy steps. The 6mm Creedmoor is a ballistically talented cartridge offering long range precision and wind-bucking abilities. 107 SW Columbia St | Bend, Oregon, USA 97702 | Toll Free: 1-800-285-3701 | catalog@nosler.com Nosler Showroom / Open to the Public: Monday - … The 6mm Creedmoor is the newest member of a wonderful family of cartridges, and it should make its mark in the hunting fields, just as it has in competitive shooting. However, the SAAMI maximum average pressure for the 6mm is 62,000 psi and 60,000 psi for the.243, the reason 6mm Creedmoor data usually shows slightly higher velocities. But my longest targets were at 300 yards, and stability may begin to deteriorate at longer distances unless a quicker twist rate is used. While the two cartridges have the potential of being handloaded to virtually the same velocities, the pendulum swings back in favor of the 6mm Creedmoor for the hunter who wishes to bump off a deer with one of the new breed of finger-long bullets from a factory rifle. RIFLE RELOADING DATA FILES (PDF) 20 caliber (.204 dia) 204 Ruger 39. g8 3r9. For the Precision Rifle, I continued to neck size only, and after several firings, the fit of some cases became too tight for easy bolt closure. 6mm Creedmoor Load Data. Hodgdon ®, IMR ® and Winchester ® powders neither assume nor authorize any person to assume for it any liability in connection with the use of any product or data. A Hornady Lock-N-Load Power Case Prep Center trimmed virgin cases to a uniform length, followed by chamfering and deburring. Sierra has released very comprehensive 6mm Creedmoor load data, covering fifteen (15) different bullets from 55 to 110 grains. The 6mm Creedmoor Hornady V-Max/75 Big Game/44.5 Sierra Tipped GameKing/90 Hunter/45.0 Nosler Partition/100 MRP/44.0 Hornady ELD-X/103 Superformance/44.5 John Haviland More SUBSCRIBE I am shooting a Krieger 21", 1-8 … flash hole diameters of 0.074 to 0.078 inch. 2.600” #1537 .243” 95 gr. Most of load data I've found for the 6mm Creedmoor suggests H4350 in 41+ grains for the Berger 105's. 223 Win Super Short Magnum (WSSM) Load Data; 6mm PPC-USA Load Data; 6mm Creedmoor Load Data; 6mm Bench Rest Remington Load Data; 243 Winchester Load Data; 6mm Remington Load Data; 243 Win Super Short Magnum (WSSM) Load Data; 240 Weatherby Magnum Load Data; 250-3000 Savage Load Data; 257 Roberts Load Data; 257 Roberts Ackley Improved Load Data Patrick used a Ruger Precision Rifle chambered in 6mm CM to snipe this Montana prairie dog at 564 yards in a moderate breeze. This data is for Hornady Precision Hunter factory ammo using a 200 yard zero and a 24″ barrel. Additional loads are in the works. The Winchester WinClean 244 is a nice addition to Winchester's handgun powders. ©2021 Outdoor Sportsman Group. When once-fired (and not resized) Hornady cases are filled to the brim with water, the 243 Winchester holds 55.2 grains versus 52.6 grains for the 6mm Creedmoor. While the 6.5 Creedmoor has made great strides in competitive sports, it has achieved even more success among hunters. Chamber throats for 243 Winchester rifles do vary in length, but they are usually long enough to seat bullets beyond the S.A.A.M.I. : L. G1 B.C. maximum length. I’ve spent quite a while loading and shooting 6mm Creedmoor Starline brass with both large and small primer pockets, and in this article I’ll share both my first hand experiences AND a bunch of lab data quantifying the consistency and performance for this brass. 6mm Creedmoor reloading data with 364 loads. chamber dimensions, the 243 Winchester is a better choice for use on both varmints and deer because the shorter chamber throats of rifles in that caliber make them more suitable for use with short, varmint-weight bullets. The barrels of both rifles have a 1:7.7 rifling twist rate. I'll be shooting the Berger 109 Long Range Hybrid Target. I might as well chime in. In addition to being quite accurate, all of those cartridges are easy on the shoulder and deadly on deer and other game of that size to boot. 250 Savage 25 WSSM 25-06 Remington 257 Roberts 257 Ackley Improved 257 Weatherby Magnum.264″ Diameter. Thanks . 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