How many caliber is 7mm

Makes just as much sense in the back of your truck as it does in the kitchen drawer. Whether you're scouting before the season or find yourself in an early season heat wave, the Wick Short Sleeve Crew will keep you dry and comfortable. Last month, I called the. No one doubts the. But the long-range target shooting craze has produced an equally voracious Many hunters will be surprised to learn that the.

Winchester introduced the. Around the same time, gunsmith and wildcatter P. Ackley began tinkering with the. Ask any American hunter to name his top three big game cartridges and chances are good that at least one of those will be the. Winchester launched the. At the time it offered better long-range performance than any other cartridge on the American market, and today it remains one of the most frequently chambered calibers in existence.

Hunting Firearms Caliber Battle: 7mm Rem. FHF Gear. Bino Harness Pro-M. First Lite. Obsidian Foundry Pant. The Essential Meatcrafter Knife. Wick Short Sleeve Crew. Category: Firearms. Get the latest in your inbox.

Subscribe to our newsletters to receive regular emails with hand-picked content, gear recommendations, and special deals. After all, it kicked more and made more noise than a. Herein lies something of a mystery. When the Remington magnum was developed, it was by no means the first such round in. Les was a Wyoming gun nut, and outfitter, and I think they sent him an experimental rifle in the new caliber, and he loved it, and so they went with it. Les was also stone deaf. He heard less than I do.

He owed part of this to shooting and part of it to the fact that he flew open-cockpit mail planes for the Post Office back in the s and 30s, and lost a good chunk of his hearing thereby. I consider this an unfair advantage. Checking back through my records, the only one I can find that I owned I bought in , and hunted with it, and thought it was OK and no better, and had it rebarreled to. I have, however, shot a lot of others. A tie. As far as bullets by themselves are concerned, the 7mm has a big advantage.

The practical range of bullet weights for the. For the 7mm, it goes from grains to grains, with all sorts of stops in between. The best weight for the. The best weight for the 7mm Magnum is In a inch barrel, the former can be made to go 2, fps.

The latter can be driven at the same speed. The 7mm Rem Mag has to have 24 inches or you lose what little advantage in velocity you have. Some 7mm Rem Mags are given inch barrels, and anyone who is nuts enough to hunt with such an abomination is welcome to do so.

Both rounds, it should be noted, have reputations for fine accuracy. Using the grain bullet as a model, in a 7-pound rifle, the. At the same time, the 7mm Rem Mag has a steeper 25 degree shoulder the. Bullet size is another one of the other obvious differences between the 7mm Rem Mag vs Each cartridge uses different diameter bullets:. Everything else being equal, the smaller diameter 7mm bullets have a higher ballistic coefficient and a higher sectional density than the larger diameter bullets of the same weight from the.

However, the. The vast majority of 7mm Rem Mag factory loads shoot bullets in the grain range. Of these, grain, grain, grain, and grain loads are by far the most common. The 7mm Remington Magnum is also loaded to a higher pressure than the. Note: while the powder capacity figures listed below do give a good indication of the differences between the two cartridges, exact case capacities vary slightly according to the brand of brass used.

Not surprisingly, the differences in the external dimensions of the 7mm Remington Magnum and the. I chose those particular factory loads because they provide a good demonstration of the performance of each cartridge when using wide spectrum of different bullets.

The Winchester loads use light for caliber bullets, the Federal loads use very heavy for caliber bullets, and the Hornady loads use heavy for caliber, exceptionally aerodynamic bullets for each cartridge. Specifically, the 7mm Remington Magnum loads use a gr Extreme Point. Note that the bullets used by 7mm Remington Magnum in each load are more aerodynamic than those used by the.

More on this in a minute. As you can see, the 7mm Remington Magnum has a flatter trajectory and more kinetic energy than comparable. Additionally, since it uses more aerodynamic bullets with a higher ballistic coefficient, that gap in performance grows in favor of the 7mm Mag as range increases.

At yards, the various. The chart below compares how much a 10 mile per hour crosswind impacts those same 7mm Rem Mag and. As you can see, the 7mm Remington Magnum also has a big advantage in this area as well. That makes sense since the cartridge is shooting more aerodynamic bullets at a higher velocity. The exact details vary by load of course. Once again though, the gap in performance increases with range in favor of the 7mm Remington Magnum.

The table below compares the recoil produced by the handloads that approximate the performance of the Hornady Precision Hunter factory load above for each cartridge when fired from identical 8 pound rifles. Felt recoil will vary from shooter to shooter and rifle to rifle, but free recoil energy is still a useful way to compare cartridges. As you can see, the 7mm Remington Magnum has slightly more recoil than the.

In this case, the 7mm Rem Mag produces 7. That should not be surprising at all. After all, the 7mm Rem Mag is a heavy hitting belted magnum that burns a lot more powder and produces higher velocities. Basically, the 7mm Rem Mag should be expected to hit a little harder on both ends, which is exactly the case. This can be mitigated to a certain extent with the use of a suppressor, muzzle brake, or a good recoil pad. All things considered, the 7mm Remington Magnum is one of the more lighter recoiling magnums particularly when compared to the.

Recoil is certainly worth considering though. Some people do handle recoil better than others, but all other things being equal, they will absolutely shoot more accurately with a milder recoiling cartridge.

Specifically, the larger diameter. All other things being equal, a bigger bullet will make a bigger hole, cause more tissue damage, and result in more blood loss. On the other hand, as we covered earlier, those longer, heavy for caliber. Sectional density SD is a measure of the ratio of the diameter of a projectile to its mass. All other things equal, a heavier projectile of a given caliber will be longer and therefore have a higher sectional density and consequently penetrate deeper than projectiles with a lower mass and sectional density.

All that being said, the 7mm Rem Mag still has a slight edge with most bullets in common use, even when compared to heavier. As an example, grain, grain, and grain. This compares favorably to grain, grain, and grain. The bullets used in this comparison illustrate those differences well with the 7mm Remington Magnum using gr. Gun writers have spilled a lot of ink comparing the accuracy of the 7mm Rem Mag vs over the years. While picking the most accurate cartridge of the two is a relatively contentious subject, most people agree that both the 7mm Mag and.

Not surprisingly, both cartridges have seen extensive use in long range shooting competitions and both have served with distinction with military and police snipers as well as with for precision shooters. The 7mm Rem Mag fires smaller caliber and lighter, but generally more aerodynamic bullets at a higher velocity than the. The 7mm Rem Mag has a flatter trajectory, more kinetic energy at typical hunting ranges, and is also better for longer range shots, but the.

With a flatter trajectory, less wind drift, and more retained energy at extended range, the 7mm Rem Mag does have a definite, though not gigantic, advantage over the. This makes the cartridge a little more forgiving of range or wind estimation errors than the. The most popular bullet weights for the 7mm Rem Mag also tend to be more aerodynamic than the most popular bullet weights used by the.