Bolt action load data

[LRRPF52]

My Howa 22" pressure ladder testing with 123gr and 129gr SST

I used LeveRevolution under both and got plenty of speed.

123gr SST
Federal brass 1x fired 1.208" headspace to shoulder datum
Rem 7 1/2 SRP
Hodgdon's LEVERevolution
COL: 2.250"
Temp: 60˚F on range thermometer
Chrony Beta Master 15ft from muzzle

29.8 2453
30.1 2465
30.4 2499
30.7 2517
31.0 2534
31.3 2596
31.6 2608
31.9 2605
32.2 2658 (This averages 51,551psi in a SAAMI chamber.)

129gr SST
Lapua brass 1.215" headspace to datum
Rem 7 1/2 SRP
LEVERevolution
COL: 2.310"
60˚F

Left string was shot first, then the right one
29.3 2370 2407
29.6 2393 2400
29.9 2448 2405
30.2 2453 2404
30.5 2504 2453
30.8 Error 2475
31.1 2485 2512
31.4 2530 2523
31.7 2534 2545
32.0 2572 2572

31.2gr CFE / 123gr AMAX load
2599
2557
2582
2617
2617
2564
2586
2608
2619
2566
AVG: 2592fps. (AVG chamber pressure with this load is 46,235psi. in a SAAMI chamber.)

Hornady American Gunner 123gr BTHP
2469
2456
2465
2463
2437
AVG: 2458fps

Everything fed fine from the mag even the 129gr SSTs at 2.310" COL. I think I would choose the 129gr SST load for hunting, didn't notice too much difference in recoil. Fun little rifle to shoot.

All my primers have nice little dimples in them. I didn't see anything crazy going on with the brass, not that I rely on brass as a sign of excessive pressure, but I definitely still look at it. Even the Federal brass looks good.