Originally published at Notes from the bunker…. You can comment here or there.

Took the .308 CZ550 out for a spin. All data is for 100 yards. Temperature of 29 degrees. No wind.

Using:
Speer 165 gr. boattail
Win. WLR primer
R-P brass 2x fired trimmed to 2.010 and neck sized
46.0 gr. BLC2
Overall cartridge length: 2.800″

Four shots: 1.5″ Remove flyer: 1″
Four shots: 1 15/16″
Four shots: 1.6″ – remove flyer: 1″
Four shots: 1 3/4″
Four shots: 1.5″ – remove flyer: 3/4″

BLC2 has a rep for being temperature sensitive. I wanted to try some just to see how it goes.

Next group:
Speer 165 gr. boattail
Rem 9 1/2M primer
R-P brass new trimmed to 2.010 and full length sized
46.0 gr. Varget
Overall cartridge length: 2.800″

Three shots – 1.25″
Three shots – 1.50″
Five shots – 1.75″, discount flyer – four into .75″

The Varget seems to be the way to go. I need to get a premium bullet (Sierrra MK or Lapua, although Im thinknig about trying the Hornady SST) and some much better quality brass (Either Lapua or Horn. match or Norma)