05-15-2022, 04:03 PM
@TedBrewer5, what's the barrel length you shot these groups with?
I just got started into loading ammo and I have some 90 gr TNT data I'll share for what it's worth. My first batch of loads was new Hornady brass, CCI 450 primers, 30 gr H335, 90 gr TNT, COAL 2.20. Maybe I should reduce my COAL to 2.19 as well? I've been shooting this ammo through a 20" proof research carbon barrel and a 16" precision firearms stainless criterion barrel. I use these rifles for night hunting with thermal so I didn't really shoot for true accuracy groups yet but my initial groups at the range with thermal scopes were decent shooting from 25, 50, 75, and 100 yards. Both rifles grouped similarly...picture of the initial 20" 25-100 yards group attached. I used a magnetospeed v3 chrono. The 20" had an average velocity of 2721, SD 24.8, and ES 61 (5 shots). The 16" average velocity 2608, SD 13.1, and ES 26 (only 4 shots...). Both with Dead Air Sandman-S supressors. I could easily and consistently make vital hits on my steel coyote targets out to 350 yards with both rifles so I was happy with that but if there are any tips to improve SD and ES I'm all ears.
[ATTACH=CONFIG]18844[/ATTACH][ATTACH=CONFIG]18845[/ATTACH][ATTACH=CONFIG]18846[/ATTACH][ATTACH=CONFIG]18847[/ATTACH][ATTACH=CONFIG]18848[/ATTACH]
I just got started into loading ammo and I have some 90 gr TNT data I'll share for what it's worth. My first batch of loads was new Hornady brass, CCI 450 primers, 30 gr H335, 90 gr TNT, COAL 2.20. Maybe I should reduce my COAL to 2.19 as well? I've been shooting this ammo through a 20" proof research carbon barrel and a 16" precision firearms stainless criterion barrel. I use these rifles for night hunting with thermal so I didn't really shoot for true accuracy groups yet but my initial groups at the range with thermal scopes were decent shooting from 25, 50, 75, and 100 yards. Both rifles grouped similarly...picture of the initial 20" 25-100 yards group attached. I used a magnetospeed v3 chrono. The 20" had an average velocity of 2721, SD 24.8, and ES 61 (5 shots). The 16" average velocity 2608, SD 13.1, and ES 26 (only 4 shots...). Both with Dead Air Sandman-S supressors. I could easily and consistently make vital hits on my steel coyote targets out to 350 yards with both rifles so I was happy with that but if there are any tips to improve SD and ES I'm all ears.
[ATTACH=CONFIG]18844[/ATTACH][ATTACH=CONFIG]18845[/ATTACH][ATTACH=CONFIG]18846[/ATTACH][ATTACH=CONFIG]18847[/ATTACH][ATTACH=CONFIG]18848[/ATTACH]