30 Luger Cartridge Conversion

[Patronen]

Originally Posted by sheepherder

I don't know what a spin test is

The spin test is slang pertaining to the CZ52 and usually surplus 7.62 ammo. The chamber is tight on the CZ52 and some of the cases are sometimes too wide and too long to properly seat. So some people that shoot surplus in a CZ52 will pull out the barrel and take each cartridge to see if it fits before using if not there can be stoppages at the range and it's a PITA. I gave up shooting surplus in the CZ52 for 2 reasons, the one above mentioned and the variaing powder charges that can happen in surplus. When forming the .223 case into 7.62Tok I had the barrel next to the reloading bench to make sure the length of the case with seted bullet would drop in, after about 25 rounds and a few failures in some hours I felt buying Selior and Belliot 7.62Tok to shoot and reload or Starline cases may be the better way to go.
Case annealing is something I have not done, I don't shoot heavy charges and since alot of the brass was obtained next to nothing I feel a case that splits can go into the trash.
As Rick W has said there is quite a few steps to turn for example .270 into .308 using regular dies it can be done if you turn it first into another caliber or sometimes 2 on your way down, fun for the challenge to say you did it but not at all practical for quantity in my opinion when using a simple single stage press.