I moved on to 55 BTs and IMR 8208 before I owned a chronograph (which I think came from Wyoming?!) but should have been in the 32-3300 range. Anyway, they shot good enough I didn't worry too much about it.
I found a couple dozen of those Benchmark loads left over the winter though. I hope to clock them this summer.
In my 700SPS it is: Lapua brass, BR4 primer, 24.9 grains of benchmark, and a 52gr Berger or CComp. (either 3270 or 3370 fps I's forget) Same with the BR 2 or 4 which ever is the SRMP.
H322, work up per load manuals ... mine likes 50 g z or v max bt's with less than max laod, CCI 400's in 1:9 bbls
speed? .... its enough to make em pop
H322 is temp insensitive from winter yotes to summer short tailed prairie dwelling critters .... and in those summer situations when shooting volume, clean burning too which is nice
Its great power for 50's and 8 #er's are currently in stock at midsouth shooters, it's been hard to find, don't pause if interested
I load 25.5grs. of Benchmark behind a Hornady 50gr. V-max bullet using CCI 400 primer. Seat bullet just off the lands. Basically 1 hole group at 100yds. Average velocity is 3430fps. out of my 26" heavy barrel Remington 700 SPS Varmint. Trigger tuned to a crisp 2 pound trigger pull and is beded in a Bell & Carlson M40 stock. barrel is free floated. Scope is a Burris Signature series 8.5-32x44mm with the Ballistic Mil-dot reticle.
Fotis,
Mine is 25.4 IMR 8208XBR, 50 gr BT, runs right at 3300 or a shade over in a 24". Last chrono in cold weather was 3320. Tears one ragged hole at 100 yards. Ruins a coyotes day pretty well also.