Wanted to post a question in case someone has some incite here. I feel like I’m overlooking something easy but have a lot of potential variables.
-rifle is a Ruger Precision Rifle 6mm Creedmoor with a 24” Proof barrel. It was a factory .308 Win that I’ve put almost 3000 round through so it’s good and broke in. While it was a .308 I ran Federal GMM Brass, CCI No 200 primers, Varget and 175gr SMK’s with great result and never had a single issue with reliability. I swapped calibers myself with this 6 Creed barrel by Proof that was used with around 1,000 rounds logged on the barrel. I’ve got the Forester Go/No-Go gauges and it all checks out, torqued down barrel Etc.
First run was Factory Hornady Match 108gr ELD-M putting 9 shots into about 3/4” at 100yds. Just got all my loading components and set up to load my own.
I’m loading Peterson Large Rifle Primer Brass (1x through another gun), CCI No 200’s (same primers I’ve used in the same gun forever) H4350 and Berger 105gr Hybrids. Trying to go with some proven components and powder charges. So I found some awesome nodes between 41.2gr-41.6gr and everything grouped around .6” groups or better all day. But I had two rounds that the primers did not ignite and I don’t know why or how to fix it. One was at 41.5gr and the other at 41.8gr. I will probably keep the node of either 41.4-41.5gr but with having (2) primer failures in (40) rounds is not good odds. I hit both primers twice and still didn’t fire. The brass does appear to have some pressure but was showing slight smears on the brass at a full grain below max
Not sure if I should swap primers to something else, assume it’s just a bad batch or primers (it’s a different lot number than the other stuff I’d been using), investigate something with the rifle, or something else entirely
-First picture is groups fired today.
-Second picture is the 41.5gr primer that failed to fire
-third picture is the 41.8gr primer that failed to fire
-Fourth picture is the factory Hornady Ammo I fired
-Fifth picture is groups I fired today.
-Last picture is the rifle
-rifle is a Ruger Precision Rifle 6mm Creedmoor with a 24” Proof barrel. It was a factory .308 Win that I’ve put almost 3000 round through so it’s good and broke in. While it was a .308 I ran Federal GMM Brass, CCI No 200 primers, Varget and 175gr SMK’s with great result and never had a single issue with reliability. I swapped calibers myself with this 6 Creed barrel by Proof that was used with around 1,000 rounds logged on the barrel. I’ve got the Forester Go/No-Go gauges and it all checks out, torqued down barrel Etc.
First run was Factory Hornady Match 108gr ELD-M putting 9 shots into about 3/4” at 100yds. Just got all my loading components and set up to load my own.
I’m loading Peterson Large Rifle Primer Brass (1x through another gun), CCI No 200’s (same primers I’ve used in the same gun forever) H4350 and Berger 105gr Hybrids. Trying to go with some proven components and powder charges. So I found some awesome nodes between 41.2gr-41.6gr and everything grouped around .6” groups or better all day. But I had two rounds that the primers did not ignite and I don’t know why or how to fix it. One was at 41.5gr and the other at 41.8gr. I will probably keep the node of either 41.4-41.5gr but with having (2) primer failures in (40) rounds is not good odds. I hit both primers twice and still didn’t fire. The brass does appear to have some pressure but was showing slight smears on the brass at a full grain below max
Not sure if I should swap primers to something else, assume it’s just a bad batch or primers (it’s a different lot number than the other stuff I’d been using), investigate something with the rifle, or something else entirely
-First picture is groups fired today.
-Second picture is the 41.5gr primer that failed to fire
-third picture is the 41.8gr primer that failed to fire
-Fourth picture is the factory Hornady Ammo I fired
-Fifth picture is groups I fired today.
-Last picture is the rifle
. There is no pressure to keep the primer from deforming like that.
