Yesterday, 09:38 PM #21
nofishbob
Member
Join Date: April 16, 2008
Location: Copper Canyon, TX
Posts: 372 One more small piece of data:
The re-sized, once fired cases are about 0.004" bigger at the case web area than an unfired case.
The primer pockets are still tight as I test-primed a few and the insertion force seemed normal.
Bob
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The re-sized, once fired case is larger?
#17
fguffey
Member
Join Date: August 28, 2008
Posts: 1,404 Your rifle was not test fired with the scope, mount and rings installed. The mount was installed after test firing,
Grinding the bottom of the die, I have always insisted grinding the bottom of the die and or top of the shell holder is not necessary. Now that you have ‘fixed the die’ there is hope. I am forming cases for a wildcat that requires shortening a 300 Win Mag forming die .156”. All I have to keep up with is the .156” I removed, I can adjust the die off the shell holder .156” and continue using the die for 300 Win Mag.
Back to my favorite forming dies, the 308 W, 7MM08 and the 243 Winchester, all I have to keep up with is the distance I adjust the dies off the shell holder like the 7.7 Japanese from 30/06, I adjust the die off the shell holder .076” or the 8mm57 from 30/06, I adjust the die off the shell holder .121, and yes, I have an 8mm57 forming die.
F. Guffey
When sizing a case the case has case support, except, when the die is shortened, when the top of the case is being sized the unsupported bottom of the case is allowed to bulge/squat.
Back to ‘no one measures’ without knowing the diameter of the case above the web before firing measuring the diameter afterwards is of little value. A .004” upset at the web would be all the warning a reloader would get.
F. Guffey