Pressure signs?

[Tactical30]

Im new to reloading and was wondering what do I look for, for pressure signs on cases that i have already reloaded and shot?
The obvious are split necks but what else? Any pics you could share of different pressure signs on cases?

 

[hill billy]

Re: Pressure signs?

Cratered or flattened primers.

 

[DRAM40A1]

Re: Pressure signs?

1.An increase in case head expansion as measuredby a very accurate micromiter.
2.Hard or sticky extraction from the chamber of the firearm.
3.Flattened primers(the rounded edges of the primer are now flattened, filling the gap between primer and case head.)
4.Cratered primers(primer cup material flowing into the firing pin hole.)
5.Ejector marks on the case head.
6.Sooty gas leakage around the primer.
7.Enlarged primer pockets-in the worst cases with the primer blown loose.
This is from the Hornady reloading manual. 6th edition.
You will get split necks from brittle over worked brass, not over pressure loads. my .02......

 

[kombayotch]

Re: Pressure signs?

http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=434396

 

[jrob300]

Re: Pressure signs?

With this regard my buddies Rem. 700 seems a little less sensitive to this than my Tikka, but for me if the bolt lift just seems slightly heavy in the last bit of travel, sure enough, in just a few more tenths of grains the other signs start to show up on the brass. I then back off to the last node that shot well and call it good.

John