I was at the range this week. A couple of Gentleman were over to the left shooting bolt guns.
One had a new Remington M700 in .223. He had a story to tell. All of his primers showed cupping around the firing pin. And I examined them, they were WSR. His load, which I forget, was not hot.
He had called Remington and was told that Remington was deliberately making the firing pin holes a little larger in diameter just to have that effect. He claimed he was told it was “safer”.
I wish I had talked to the Remington technical guy, but what I suspect is that the primer flow is creating a gas seal, blocking any chance of gas flow down the firing pin shaft.
In my opinion, as long as the primer is not leaking or piercing, the condition is not dangerous.
His bud had an earlier M700 in .223 at the range, and if you looked at the bolt faces, it looked as though the new bolt had a slighter bigger hole.
Did not have my Camera, would have made interesting pictures.
One had a new Remington M700 in .223. He had a story to tell. All of his primers showed cupping around the firing pin. And I examined them, they were WSR. His load, which I forget, was not hot.
He had called Remington and was told that Remington was deliberately making the firing pin holes a little larger in diameter just to have that effect. He claimed he was told it was “safer”.
I wish I had talked to the Remington technical guy, but what I suspect is that the primer flow is creating a gas seal, blocking any chance of gas flow down the firing pin shaft.
In my opinion, as long as the primer is not leaking or piercing, the condition is not dangerous.
His bud had an earlier M700 in .223 at the range, and if you looked at the bolt faces, it looked as though the new bolt had a slighter bigger hole.
Did not have my Camera, would have made interesting pictures.
