Originally Posted by WYcoyote
What I have started doing is setting my headspace with a gage first, then firing one round with my new brass. I then take that case and full length size it in my die, and reset my headspace to that resized case. I make a no-go by sticking a .002" piece of SS shim stock to the case head. You end up with your headspace custom set to your die to minimize brass flow and possibly extend case life. Maybe not the best method to use if you are going to shoot factory cartridges also but I handload only.
Thanks WYcoyote. This is exactly the information I was looking for. I agree with you; the tighter the headspace tolerance, the less abuse/stretching of brass will occur. An added benefit is an increase in precision.
The only things I do slightly differently is, use tape on the case head in stead of a shim but I then follow up with the no-go gauge.
Process -- I set initial headspace with the go gauge to establish a safe baseline then I insert the sized case. Using the re-sized case, I typically find that tolerances are quite close and very little adjustment is needed. At this point, I also check to make sure my factory loads fit in the chamber. If I back tolerance off, I'll recheck with the go gauge as a safety measure but have never taken the adjustment further out than than SAAMI (indicating factory cases are shorter than SAAMI anyway...). Then as mentioned, I follow up with the no-go just gauge as a safety measure (and for liability reasons).
Is anyone else using this method? I'm not a gunsmith so don't take this as expert advice. For those who are experts, any issues, safety or otherwise, with this method? Thanks!
BTW - Hello all. I'm new to the forum!