I have been loading for around 2 years now and never really seen the need to run hyper hot loads and as such never really needed to get close to stated max loads.
luckily my rifles have obeyed the law of the sod's and not had odd chamber preferences...until now
OAL of "about that much"
VV data states:
3,4 52 HPBT Sierra 54,0 2.126 N120 1,16 17.9 876 2874 1,27 19.6 957 3140 N130 1,28 19.8 899 2949 1,38 21.3 975 3199 N133 1,37 21.1 916 3005 1,50 23.1 998 3274
Their Max data shows 23.1gr
I normally shoot 50gr VMax and tried three of these as a cvomparison. (centre group, lowest one was the first AMax which I lost and thought had gone over the target som moved POA to lower cross and continued)
I was being a "good reloader" and worked my way up from 22.0gr in 0.2gr increments
all going well when I hit the wall on the first one of 22.8gr
Bolt was very stiff, case came off the extractor and was well and truly stuck in the chamber.
The case has a clear pressure mark on the head, very obvious brightening marks along its entire length up to the web
Just posted it to show you don't need to be near max to have pressure signs and the jump in signs was all or nothing.
load clock off sticks at 115yds: