I saw a light ejector swipe at 38.6gr H4350 but no flattened primers or heavybolt lift. I hit 3042fps at the top end and if I wasn't paying attention I wouldn't have noticed the light plunger mark. I couldn't feel it but it was there.
When I used h4350 36.0 got me right around 2850. Alot of my buddies had that be their same load too.
I'm running 36.0gr h4350 behind 105gr bthp at 2853fps for break in. It shot great. I might drop down pending tonight's results.
I run 36.6gr H4350 in my 28" bartlein with 109s at 2920 -40k shoots pretty dang good there. 3 other local gt shooters are at same speed. My last barrel was 108s at 2940 with rl16.
What was your round count when you pulled your barrel and the accuracy it still held at distance?
That 236 bore Krieger was the best shooting barrel I'd ever ran until 800 rounds, and I started having pressure issues. I used iosso, kroil, jb, chameleon, boretech you name it, still had problems. I learned a lesson, don't run tight bore match barrels on prs rigs. The thing still shot well in the mid 2800s but I might as well be shooting 6br in that case. I then had a 237 bore bartlein mod400 spun and have been very happy with it.
Origin Action
could just be the bullets. Berger 105 hybrids, 109 hybrids and Hornady 110 A-Tips all shot one hole groups for me.
Could be, I've been looking for Berger 105s and 109s and just haven't been able to find them.
I never know if I just got lucky with the groups. haha But, it shot some Copper Creek ammo with the ELD-M's very well (see embedded image below), and it was with a brand-new barrel. In fact, I haven't been able to get my loads to match theirs, so there is hope I can squeeze it in some.
You are correct. I have found the best accuracy around 2900-2920fps. Just verified my alpha ocd brass load today.
H4350 needs more powder to achieve the same results, granted we are talking 3-4 grains but still it's there.
I bought mine through MPA. I'm going to be buying another barrel from them. Probably going to ask them to use the same reamer if possible. Damn thing just shoots. The weak spot in the system is me.
I'm running superformance in my 6.5cm to save my H4350 for my 6GT. Superformance did okay but I struggled to get my extreme spreads where I like so . As far as staball, it's supposed to work well. I picked up a lb to try but haven't yet.
I was running 140gr hornady match bthp, hornady brass, 210m primers and 44.9gr superformance. Shooting around 1/2 moa with a Bergara HMR B14 Wilderness.
Congratulations, I have had mine for one year next month. I used Varget 42.3 that I liked but ran out. So, I switched to StayBall 6.5 that is recommended by Gardner. I load. 38.5 with either 105 Bergers. They told me that the same load will work for their 109, but work up the load.
I dont have any first hand experience using reloader 17. But here is some data using Gordons Loader tool. Hope it helps. And obviously start low and work your way up.
