View attachment 1282456
Specs: 27" Bart with a SAAMI .199fb 6.5CM chamber 107 TMK ~ .030 off the lands, .250" of bullet in the neck. Virgin Lapua SR brass CCI 41 primer Shooters World Precision powder (Lovex S062). Figured one of you might be able to answer this, because I feel like I should be close to blowing...
forum.accurateshooter.com
Specs: 27" Bart with a SAAMI .199fb 6.5CM chamber 107 TMK ~ .030 off the lands, .250" of bullet in the neck. Virgin Lapua SR brass CCI 41 primer Shooters World Precision powder (Lovex S062). Figured one of you might be able to answer this, because I feel like I should be close to blowing...
forum.accurateshooter.com
load data puts a 123 at 2860 fps-ish for a 62k psi load out of a 22" with 6.5 creed. A 6.5x47 is usually 50-100 fps slower. So if you were shooting a lead bullet I'd say your pretty high velocity wise and should probably back down. If that mark is showing up late in your load ladder id probably say that's a clear indicator of pressure. If you found good performance at a lower charge I don't think you need to chase it too much.
With yours being a solid copper I'm not 100% on how that compares load wise to other bullets of the same weight. But the claims made by the manufacturer say they will be significantly faster than bullets of the same weight which would probably account for you matching 22" 6.5 creedmoor velocity before pressure showed up.
I run 450s in my 6.5 creed with lapua srp brass and I always get some amount of cratering on the primer before I get a mark on my brass in a savage 12 lrp. Might never show up on your gun depending on firing pin slop.
Maybe you should run a combo through the gun that is exactly matching load data. And I mean exact. Same bullet, same powder, same OAL. Work up slow with that combo and see what the top end of pressure looks like if you match that loads high end velocity for your barrel length.
It may take some experimenting to find how that brass and primer indicated pressure in that action and barrel.
Maybe check the search bar out to see if other people on the forum talk about how brass indicated pressure with that action.