Getlemen
I have a weired scenerio. On my 6BR Im getting no pressure signs of anykind but am peircing primers every now and then. Its cratering on the others that do not peirce.
OK lets give you some background to work with here.
Equipment.
Remington 700 in R1 Tube gun stock converted to singleshot.
Dave Kiff oversized bolt coned and fluted and handle TIG welded
GTR firing pin, spring, and Shroud., standard pin, non light one)
Extreme CG M22 trigger.
I shot this rifle and barrel combo for 1200 rounds last winter and spring. took that barrel off and put on my 6MM superX barrel. shot that all summer. Just put on my old 6BR barrel and switched lots of Varget powder. All else being the exactly the same. My first thought was that I got a fast lot of Varget so Ive been backing off the load. The old load which I never ever had a problem and there was Zero signs of pressure is 30.1gr Varget. Norma Brass, CCI 450, and a Berger 105VLD. Shoots in the high 1's!!!!!
Now Im down to 29.8gr of this new lot of powder and Im still getting two pierced primers in 40 shots. Temp was 50-60degF
I have never seen Powder with that much varience before. Not that it cant be, but wow.
Im looking at my Bolt to make sure the firing pin hole is not damaged and causing the problem. These loads feed and extract with Zero effort. No ejector marks what so ever, and the edges of the primers are still round. except for a cup in the middle after firing. ANy way... the firing pin hole looks Sharp and clean that has No damage at all. Why all of a sudden am I having problems. I have a major event comming and now this......
before you ask.. no the firing pin looks nice and round with no burrs or sharp edges.
Dang it.
RussT
I have a weired scenerio. On my 6BR Im getting no pressure signs of anykind but am peircing primers every now and then. Its cratering on the others that do not peirce.
OK lets give you some background to work with here.
Equipment.
Remington 700 in R1 Tube gun stock converted to singleshot.
Dave Kiff oversized bolt coned and fluted and handle TIG welded
GTR firing pin, spring, and Shroud., standard pin, non light one)
Extreme CG M22 trigger.
I shot this rifle and barrel combo for 1200 rounds last winter and spring. took that barrel off and put on my 6MM superX barrel. shot that all summer. Just put on my old 6BR barrel and switched lots of Varget powder. All else being the exactly the same. My first thought was that I got a fast lot of Varget so Ive been backing off the load. The old load which I never ever had a problem and there was Zero signs of pressure is 30.1gr Varget. Norma Brass, CCI 450, and a Berger 105VLD. Shoots in the high 1's!!!!!
Now Im down to 29.8gr of this new lot of powder and Im still getting two pierced primers in 40 shots. Temp was 50-60degF
I have never seen Powder with that much varience before. Not that it cant be, but wow.
Im looking at my Bolt to make sure the firing pin hole is not damaged and causing the problem. These loads feed and extract with Zero effort. No ejector marks what so ever, and the edges of the primers are still round. except for a cup in the middle after firing. ANy way... the firing pin hole looks Sharp and clean that has No damage at all. Why all of a sudden am I having problems. I have a major event comming and now this......
before you ask.. no the firing pin looks nice and round with no burrs or sharp edges.
Dang it.
RussT