Why Lil gun has no place in 300BLK subsonics...

[Rancid Coolaid]

And 1680 recipes I should be trying instead?

I agree H110 shouldn't be used in sub, why not Lil gun?

[L1A1Rocker]

Why shouldn't H110 not be used in subsonic? I've read great things about it.

[Rancid Coolaid]

My experience (and the experiences of a few who advised me): it is very sensitive to position in the case and to temperature.

I played with it for several months and had extreme vertical stringing. A few recommended I move to something else, problem went away entirely.

Anecdotal: yes, but I don't run H110 in subs any longer.

[Titleiiredneck]

H110 is decent in a bolt gun, I pefer aa#9.

[rsilvers]

H110 and Lil'Gun are both bad in subs for 300 AAC BLACKOUT ARs because they don't generate enough gas pressure, so there is a wider gap between subsonic and supersonic cyclic rate and so one gas port cannot handle both as well as if the subsonic powder made more gas.

If you use A1680, then it makes enough gas to cycle close enough to the same rate as supersonic ammo.

H110 should be ok in subs for bolt guns. I have seen people say it was temp sensitive, but I have not heard of this being shown in a lab test. I do know that Lil-Gun is a high nitro pistol powder and has elevated pressures at certain temps that are significant enough that one may not want to load it to max pressure at standard temps.

[Rancid Coolaid]

For clarification, my 300 is only run subsonic. I had bad experiences with H110 but very good experiences with lil gun.

No supersonic rounds will be fired.


Important clarification.