Not that thatвЂ™s a reason t throw it out, itвЂ™s just a short-range rifle. At 100-yards, Blackout hunting loads are only expanding a very little bit. 200-yards is just too far for the Blackout.ДЄs a bullet slows down, it expands less and less until it doesnвЂ™t expand at all. Most hog hunters try to keep their shots within 100-yards, but some will shoot 150-yards. ItвЂ™s one of the popular AR cartridges for hog hunting. The 300 Blackout really tends to lack expansion compared to the Grendel, but it still seems to work well enough on deer and hogs at 100-yards. The Grendel is generally functional to 400-Yards before it gets too slow to reliably expand. ThatвЂ™s about 125-yards for most supersonic Blackout loads. Most bullets fail to expand at velocities under 1800 fps. The Blackout is a slow cartridge, and velocity is what causes bullet expansion. But, thereвЂ™s still great bullets for both Expansion and Velocity 264 bullets used in the Grendel are less common, so thereвЂ™s less of a selection to choose from. The 30-caliber 300-Blackout will tend to make a wider hole, but it wonвЂ™t penetrate as much as a comparable bullet in 6.5 Grendel.ДЈ0-caliber (.308 actually) is a common bullet size, so thereвЂ™s a wider selection of available bullets for the Blackout both in factory ammo and for reloading. There is a notable difference between the 30 calibers and 26 caliber diameter, especially after bullet expansion. Because the Blackout is wider, yet they tend to have similar weight, the Blackout has a lower Ballistic Coefficient than the 6.5 Grendel. Most bullets from both cartridges weigh around 125-Grains. The 6.5 Grendel is a lower to mid-power 26 caliber cartridge. The 300-Blackout is a lower-power 30-caliber cartridge. They both have very specific uses and your personal needs will probably make the decision for you. There is a world of difference between these two cartridges.

The 6.5 Grendel has more utility while the 300 Blackout was designed to work quietly in short barrels. Both fit in an ar-15 and have low recoil. The Blackout works well with subsonic loads in a pistol-length barrel, but has a short effective range. The 6.5 Grendel has more velocity, range, and more energy than 300 Blackout.

Subsonic 6.5 grendel