Need a load for 1/8 bull barrel

[Hip's Ax]

When you get more bullets try WW748, I think you will be pleased. I had the same problem trying to find a 100 yard load for my NM AR 1:8 twist years ago. Nothing I tried worked. One of the older shooters told me 52 gr Sierra MK and WW748 and then 69 gr SMK with WW748 for 200/300. Amazing accuracy out of my rifle.

[joem]

Well I reduced the powder charge to min and increased it by 1/2 gr up to the max. I used a 69 gr Nosler. Everything was CRAP. I've loaded 10 each 75 gr hp's . If they don't work then > My next time out I'm taking several 30 round mags and I'm going to see just how hot I can get that barrel. My version of heat treating.

[Hefights]

24 - 25 gr of AA 2520 and 69 gr Sierra MK you can't go wrong. 24 -25 gr of Varget & 69 gr Sierra works well too. Work up loads as per normal safety precautions.

[joem]

I loaded some 75 gr HP's with 2230C. If it ever stops raining I'll try them out.

[joem]

I tried out the 75 grs and that was the worst group I ever shot. Group size was 14 to 16" @ 100 yds. On my other rifles 69 gr for the 1/7 and 62 gr for the 1/9 twists. My thinking is something in between would be 65 gr. As soon as they are back in stock I'll try them. If that doesn't work then the barrel is history.

[Hefights]

Have you tried 69gr bullets in this barrel?

[joem]

Have you tried 69gr bullets in this barrel?

Yes. I tried 69 gr seirras and Noslers. NO Good groups with either. Also tried some surplus powder that shoot very well in my other rifles. I did fire 50 rounds rapid fire. One 30 and a 20 rounder. Barrel very hot. Shot some 62 gr SS109. Groups much better but as it cooled down groups opened up. Maybe fire lap is in order or hack saw to finish.

[Former Cav]

you will be happier with the groups using a 77 sierra match king (or 75 grain hornady) bullet in that 1 in 8 twist barrel.
You can seat them deep enough to fit the magazine too.
I've used VARGET for years now. 24.5 grains, 77 Sierra Match king, and Standard Small Winchester brand rifle primers in LC brass.

REMEMBER.... ALL DISCLAIMERS APPLY. MY RIFLE CHAMBER / THROAT IS DIFFERENT THEN YOURS. REDUCE ALL LOADS 10 % AND WORK UP FROM THERE.