Shims for dies to aid in headspace

[Trickymissfit]

The shims Ive ordered will do what I need just fine

true, but the sets are usually cheaper, and more complete. Of course you can simply buy a plastic shim stock book and a pair of scissors. Making shims is not rocket science, and you'd be surprised at what is dead on the money every time. Cellophane wrappers on a cigarette pack is exactly .001". Buy a sheet of one, two, and three thousandths brass, and you can make dozens.
gary

 

[Sully2]

true, but the sets are usually cheaper, and more complete. Of course you can simply buy a plastic shim stock book and a pair of scissors. Making shims is not rocket science, and you'd be surprised at what is dead on the money every time. Cellophane wrappers on a cigarette pack is exactly .001". Buy a sheet of one, two, and three thousandths brass, and you can make dozens.
gary

They have already arrived!

 

[Sully2]

No one needs a set for "every" cartridge he loads for, only need one set for each case head size. Even then, if they help at all they're only useful for those cases we may want to squeeze out the last few thou of possible accuracy, they sure won't make a massive accuracy difference.

Maybe even NO difference in accuracy but a BIG difference if you cant get casings even chambered because the case headspace was too long????

 

[flashhole]

That's the beauty of using the feeler gauges.

 

[Sully2]

I dont see it! Im not the shade tree sort and these shims I purchased are for a specific purpose.

Had I wanted to use the feeler gauges I use to gap spark plugs...etc...etc....thats what Id have used....but it wasnt...and Im not.

 

[flashhole]

Just trying to help. You weren't very specific about the problem you were trying to solve.

 

[Sully2]

Just drop it!....geeesh

 

[Bart B]

Sully2, you said all the right stuff from the get go. You wanted to set fired case shoulders back more than the standard shell holder allowed.

Redding's competition shellholders start at the standard .125" height the go in .002" step above that. Each one reduces shoudler setback by its difference from standard; you didin't want those.

Most full length sizing dies are made to size fired bottleneck case shoulder back to about SAAMI specs. They do that when the die shell holder does that as it stops against the bottom of the die, then the case shoulder moves forward a bit. Virtually rimless bottleneck full length sizing dies with a chamber GO headspace in them and the shellholder on it will have a .005" gap between the die bottom and shellholder top. Just enough to let most cases end up at minimum SAAMI spec for case headspace.

Three things will set fired case shoulders back more. You did one of them. Another's to grind off a few thousandths from the top of the shellholder. The third one's go grind off a few thousandths from the bottom of the die.

 

[Sully2]

I know Bart..but some people...??

I figure with the shims I can "adjust" the casings I want and leave the others "as is".