Wilson Combat 300 Hammer is now SAAMI accepted.

[LRRPF52]

I ordered a few boxes of ammo from Wilson. Once I shoot it. I’ll have some brass and cannot wait to load up some I’m wanting to explore the pro hunters 125. Accubond 125 and the Sst 150s. L , have you been loading this round ??

No, I have not done anything with 300 HAMR, just was listing some of the specifics of it. Bill Wilson basically wanted .30-30 performance from the AR-15.

You can do that with 156 and 160gr in 6.5 Grendel if you really wanted to get as close to the close range, heavier hunting characteristics of the .30-30 Win.

Both require different magazines (300BLK for the 300 HAMR). Grendel requires a different bolt.

Grendel allows you to have more energy on animals within 250yds (although they’re really close if you use 150gr SST in 300), then also reach out far for TGT shooting.

There’s a malfunction in the LAV video shooting the 300 HAMR right after 2:14, even using 300BLK PMAGs.

Magazine design needs to adjust to the increased forward mass of the cartridge stack, where you have 110-150gr projectiles, as well as the ogive shape of .30 cal bullets in basically a straight-walled 5.56 case with a tiny shoulder. Spring weight needs to increase, which places more friction on the bottom of the BCG.

If I were building one, I would do my feed ramp work on the barrel extension since the meplats and projectile shapes on .30 cal bullets are fatter.