DLT
Silver $$ Contributor
First off I want to start by saying this is a home build rifle. Origin action with a factory savage 6 creedmoor barrel. I owned another rifle this barrel was on which was all factory and it was a hammer. I sold the whole rifle, they rebarreled it and I bought the original barrel back (it always shot well). I installed in on this origin to play until I decided on what chambering to switch to. Now the fun part. I have been shooting 39.5 of H4350 with a 107smk around 3050fps with out much of a hiccup.
Today I decided to try Vv-n160. Looked up their load data and decided on a safe charge at 39.5gr. I loaded up 4 and hit the range.
First round was 3150, and blew the primer out. The case did not stick. I pulled the other 3 loaded rounds and came down 1 whole grain to 38.5gr.
The first round I was scared and pointed it into the pond and pulled the trigger, speed was 3,014 with no pressure signs so I fired the other 2 into a single hole. Excited, i went and loaded 3 more but the first one locked the bolt and stuck the case. I was able to get it out thank goodness.
I rechecked my scales they were zeroed and set to the correct charge weight. The rifle has .005 clearance of headspace from the go gauge. Could that be my problem ? I have measurements written down and my tools on hand if you want to ask any questions.
I want to add Vv load data was using small primers where my brass is large rifle. I am also bumping my fired rounds .001.
If it’s not the headspace causing it or the large primers for small primer load data I’m at a loss.
Today I decided to try Vv-n160. Looked up their load data and decided on a safe charge at 39.5gr. I loaded up 4 and hit the range.
First round was 3150, and blew the primer out. The case did not stick. I pulled the other 3 loaded rounds and came down 1 whole grain to 38.5gr.
The first round I was scared and pointed it into the pond and pulled the trigger, speed was 3,014 with no pressure signs so I fired the other 2 into a single hole. Excited, i went and loaded 3 more but the first one locked the bolt and stuck the case. I was able to get it out thank goodness.
I rechecked my scales they were zeroed and set to the correct charge weight. The rifle has .005 clearance of headspace from the go gauge. Could that be my problem ? I have measurements written down and my tools on hand if you want to ask any questions.
I want to add Vv load data was using small primers where my brass is large rifle. I am also bumping my fired rounds .001.
If it’s not the headspace causing it or the large primers for small primer load data I’m at a loss.
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