300 black powder for 125TNT Speer

[1jonathan1994]

So a $35 set of 300 black dies jumped in my cart last night. I have black brass and Speer 125 TNTs from my 308.
Never planned to load 300 black but now...
What's the go to powders?
I see H110 show up in searches.
Seems H4198 should be close.
A friend of mine bought CFE black and likes it but struggling for moa in a bolt gun.
I have an ar pistol.

 

[Bullspotter]

I am using H110 with the 125 TNT and a 110 nosler varmageddon. Both shoot right at 1 inch at 100, Cheap 16 inch BBL. Made the 125 tnt my goto bullet for the cost, Just ordered another 1k from midway!

 

[spife7980]

I didnt have an issue getting sierra 125 and 220 under an inch in both super and sub sonic using CFEBLK back when I had my blackout bolt gun. That stuff is the gold ticket IMO.

 

[db2000]

I like Alliant 1680. It’s great for super and subsonic. Not as dirty as some powders supposedly. That said, anything suppressed is dirty.
Seekins 8” match barrel
76F 26% 29.86mmHg

Speer 125 gr TNT
AA 1680 19 gr
Fed 205M
Magneto V3
1552, 1554 fps

 

[1jonathan1994]

I like Alliant 1680. It’s great for super and subsonic. Not as dirty as some powders supposedly. That said, anything suppressed is dirty.
Seekins 8” match barrel
76F 26% 29.86mmHg

Speer 125 gr TNT
AA 1680 19 gr
Fed 205M
Magneto V3
1552, 1554 fps

That's super slow.
I get 2000 plus from factory ammo and my 8.25" cmmg barrel

 

[db2000]

That's super slow.
I get 2000 plus from factory ammo and my 8.25" cmmg barrel

Seemed slow to me too. I haven’t worked up supers. I shoot subs

 

[Dschapp44]

Second H110 for the 110-125 class

125 end up around 18-18.5 grains

 

[Dewey7271]

I use 296 (same as H110) for 125s
works well

 

[awonder]

296 for standard loads or lil gun for more velocity. But also more pressure as well.

 

[rjacobs]

H110 for the light stuff... make sure you case fill is up there in the high 90% range otherwise bad things can happen with H110.

I was probably on the verge of something bad when trying to work up H110 with 150g FMJ pulls. Blowing primers way before I should have. Buddy of mine that loads thousands of rounds of magnum pistol a year said H110 doesnt like case fills under like 95% as it tends to burn weird. I switched to Lil-Gun for those 150g FMJ pulls and no further issues.

 

[Dewey7271]

Your buddy is correct from my experience. H110 or 296 does not do well with reduced loads. Tried it in a 44 and didn’t work well.

 

[nightman89]

H110 here, I think it was 18g that shot the best for me with 125g Nosler BT bullets. Zeroed at 50 yards with similar POI at 100 yards which is as far as I would hunt with them.