Any case has the most volume when its outside is perfectly round.
The more that case is out of round oval shaped, the less volume it has. That's why it's best to measure case volumes with the case full into a full length sizing die.
Some people sort by weight. If all the same weight, they will take up the same space in the chamber at peak pressure.
Interesting you point that out . The loads were worked up at about 78* but when I tested them in the other guns the temp was 98* . I had picked maybe 10 days ahead of time when I was going and that day we had record heat throughout the county . Monday is expected to be 22* less then that or 8* hotter then the temp I originally worked them up in . I'll take the same guns out and shoot over the chrono on Monday and see what I get . FWIW not one of my 4-308's has the same length barrel so that should put an interesting spin on things haha
The IMR 8208xbr load should not care about heat but that H-335 may show some differences .
FWIW I just checked that reloading store and they have Remington 9-1/2 are those magnum ?
yeah I was just looking at that , The guy on the phone said they were mag , I asked twice to confirm FWTW .
I also found during my search that the cup thickness is not any thicker then CCI standard primers or the Remington standard primers and also came across an article saying the Remington mag primers are the weakest/least powerful mag primer on the market ???? Which might be a good thing in this case ???
147gr FMJ-BT ( Everglades ) crapy bullet ( poor QC the crimp groves placement is unbelievably inconsistent )
46gr IMR-4320 ( 150gr NOS-BT Max 49.0gr c @ 2936fps ) ( 150gr NOS E-TIP Max 47'6 @ 2876
CCI# 200 Primers
COAL 2.740
LC-17 cases
22" Ruger American 2795fps
18" AR-10 2735fps .
Looks to me I'm likely only a tad high on that second load of H-335 . Correct me if I'm wrong but I'd say that isn't unsafe high but is likely to stress out my brass ? EDIT - I'll likely back off .5gr which should be the 40fps I need to drop . That said I have about 150rds loaded at that charge I plan to shoot rather then pull ????
