DoneNOut
Well-Known Member
The ball bearing thing works. Only if a HARDENED steel bolt and chrome bearing are used. A plain stainless bolt won't work. I tried it without hardened bolt and got nowhere.Here you go.
The ball bearing thing works. Only if a HARDENED steel bolt and chrome bearing are used. A plain stainless bolt won't work. I tried it without hardened bolt and got nowhere.Here you go.
I wonder if the primer pockets are in expansion outside of specs, what is the web measurement for the potential of case head separation? I bet there is a strong correlation. Now something to measure! You did it again to me!The ball bearing thing works. Only if a HARDENED steel bolt and chrome bearing are used. A plain stainless bolt won't work. I tried it without hardened bolt and got nowhere.
To add to the equation...I only do the ball bearing on coveted Lapua brass. Lapua brass has that extra primer pocket liner to them.I wonder if the primer pockets are in expansion outside of specs, what is the web measurement for the potential of case head separation? I bet there is a strong correlation. Now something to measure! You did it again to me!
No this is wrong. Case head seperation comes when the shoulder is pushed back, leading to brass stretching somewhere in front of the web to mid-level in the case.I wonder if the primer pockets are in expansion outside of specs, what is the web measurement for the potential of case head separation? I bet there is a strong correlation. Now something to measure! You did it again to me!
A big A-Men to that !I think if one were to monitor their primers and stop increasing powder when they see signs, they will never have to worry about stressing the gun.
Have to disagree, primer appearance alone is a very poor indication of pressure. Just like brass internal structure, brass cups in primers also vary quite a bit. I tested actual known pressure loads, those below max by 5,000psi just to observe primer appearance by brand, the results were very interesting. Some would show cratering just as max was reached, not over, some showed flattened primers, Federal were the worst, some showed nothing, CCI were good for this until max was well surpassed. Remington primers were funky, they appear to vary in hardness the most, some not showing anything while others pierced for no reason.A big A-Men to that !
Yes, I think I did. I now see my mistake.You may have misunderstood my A Men
Totally agree, my bad. Boy, stepped on tongue.No this is wrong. Case head seperation comes when the shoulder is pushed back, leading to brass stretching somewhere in front of the web to mid-level in the case.
ON really hot loads, the case head would expand leading to hard bolt lift, deformed case heads, and possibly loose primer pockets.
Oil or solvent in the chamber can leade to ejector pin hole swipes also, case head deformation. After cleaning, be sure to clean and dry your chamber with a swab with denatured alcohol, cigarette light fuel, Acetone, or engine starter.
I use Blue Dot in my 12 gauge, 2 3/4". 1 3/8 oz loads. I just change the shot size for whatever I hunted. From dove to Geese. Until they changed to steel shot. Quite hunting Ducks. A friend of mind and I woud go to Niland CA for hunt dove opening morning.Years ago, R.W. Hart & Son was selling sets of dies that would tighten primer pockets.
I loaded heavy buckshot loads with Blue Dot that would open the pockets on the Rem 3" shells, and I did tighten up the pockets,
1 5/8 oz loads at 1350 with 2400 powder.
That what I had copied down. Interesting. I will revise it. Thanks, and I am glad somebody has tried it. The bolt if a grade 9 work?The ball bearing thing works. Only if a HARDENED steel bolt and chrome bearing are used. A plain stainless bolt won't work. I tried it without hardened bolt and got nowhere.
That should do it.That what I had copied down. Interesting. I will revise it. Thanks, and I am glad somebody has tried it. The bolt if a grade 9 work?