Excessive pressure?

[Jason277]

I will keep you guys updated. Hopefully, I will hit the range next week. Thank everyone for the suggestions and support! This forum has so many good guys on here!

 

[SDHNTR]

So how far are you bumping shoulders back?

 

[ljalberta]

So how far are you bumping shoulders back?

He’s not. He’s using new brass for these he mentioned earlier and hasn’t resized.

 

[SDHNTR]

He’s not. He’s using new brass for these he mentioned earlier and hasn’t resized.

Ok, how far undersized is your new brass vs fired brass?

 

[Jason277]

Ok overall new 1.911Fired 1.921
Head space comparator New 1.550 Fired 1.560

 

[SDHNTR]

Ok overall new 1.911Fired 1.921
Head space comparator New 1.550 Fired 1.560

Ok, no much shoulder space. That’s good. Next step is to make sure you get all sizing lube off your cases and that can cause a slam back effect too.

 

[Jason277]

Ok , I will definitely make sure that they are wiped down thoroughly.

 

[Jason277]

Sorry , I’ve gotten busy haven’t had a chance to shoot yet .

 

[Benchrest Braxton]

were the cases the same powder charge? was this a clean barrel? leftover cleaning fluid inside the chamber could cause excess pressure in the beginning