And of course, we just don’t have the opportunity to include more 6mm CM rounds at this time, but hopefully, soon we will have this list expanded. If you have two cartridges with similar specs, such as the 6mm Creedmoor vs the .243 Win, you can expect to see pretty similar sectional densities. As the bullets move out to the 200-yard range, we do see a slight difference between the cartridges when taking all of the rounds into account. More importantly, this round maintains the velocities to cause sufficient penetration and expansion, and it carries more than enough stopping power out to 300 yards which is excellent for a .243 hunting round at this weight. vs. .300 Win. This sub-category is going to cater more towards those looking for a hunting cartridge, but if you’re going to buy a rifle chambered for one of these cartridges, then there is no harm in understanding as much as you can about each. Of course, depending on what you’re doing with these rounds, the flat trajectory might not make up for what they lack in stopping power. A 6.5 Creedmoor barrel typically lasts between 2,000 and 3,000 rounds, while the 6mm Creedmoor experiences serious velocity drops starting between 1,500 and 1,800 rounds. Sectional density plays a role in momentum as more momentum is conserved when the projectile, a bullet in our case, is striking a smaller area. We calculated the sectional densities for all of our selected rounds and graphed them below (Graph 8). The Nosler Ballistic Tip bullet is one of our favorites for deer sized game. That’s always the issue with grouping data, and we don’t discount it, but when trying to relay consistent data for a cartridge comparison, who do we trust? We get that experience is a big factor in the equation, perhaps the biggest. They are all intrinsically related, and all are important factors for how well they can take down game. Precision, wrote the piece on his necked down 6.5 Creedmoor, and moved on. The ballistic coefficient (BC) is either a term you pay a lot of attention to or it’s something you have never given a moment’s thought. It was initially a varmint hunting gun, but the arrival of larger grain bullets and more powerful charges providing more velocity allowed this round to be adapted to larger game such as deer. If you look anywhere on the internet concerning cartridge comparisons and especially how they compare to stopping power, you are going to find some pretty heated arguments on which bullet characteristic best equates to the amount of stopping power. Like our smaller data set, the 6mm Creedmoor rounds tend to maintain velocity better and outperform the .243 rounds downrange. And overall, we see that these rounds from both cartridges have incredibly low recoil compared to say the .30-06 or .308 cartridges which sport recoil energies in the 20-25 range. That’s a pretty simple way of illustrating that concept, but we think it gets the idea across. 6mm Creedmoor Hornady ELD-X Precision Hunter 103gr, 6mm Creedmoor Hornady V-MAX Varmint Express 87gr, 243 Hornady Superformance Varmint V-Max 58gr, 243 Federal Vital-Shok Nosler Ballistic Tip 95gr, Federal Vital-Shok Nosler Ballistic Tip 95r, Winchester Power Max Bonded Protected HP 100gr. I would double that. My buddy John Snow—now editor of Outdoor Life—was writing an article about the pleasures and pitfalls of developing his own cartridge. And that’s not to say it hasn’t been used in the field, it’s just not to a point where its performance has broken into the public domain. That is longer barrel life. The 6mm Creedmoor often uses longer, more aerodynamically stable bullets which is what adds to the slight increase in the overall length of the cartridge compared to the .243 Win. The 6mm Creedmoor is nearly identical to the 6.5 CM which we have reviewed and compared to the .243 Win in a previous article. Hornady 6mm ARC Losing Ground. We also see the light weight .243 rounds drop pretty significantly which we will discuss further. We gathered the ballistic coefficients for all eight rounds and graphed them below (Graph 3). Match event calendar and rifle competition accuracy training tips. Low recoil, a bullet drop of fewer than 100 inches at 700 yards, high-velocity retention, and a BC of 0.536 all make this a great round to take to the range. Like its father, the .243 Winchester is an efficient cartridge, and will give good velocities without being too hard on barrels. They both take the same caliber bullet and have nearly identical neck and base diameters. This cartridge is new to the shooting world, but it has been winning target competitions and bringing down animals at a high rate since its inception.