Greetings:

Have been trying WC852 and IMR 4831 behind 120 & 140 sierra matchkings. Rifle is 03A3 with Hart 8 twist fitted on action by Hart. Have shot several 3/8" groups but not consistent. Nighforce 5.5X22NXF Fed Match primers, Lapua 06 brass necked down. Pillar bedded with full floating barrel. 26" fluted #3 taper. best group shot today was 5/8" and 1/2". but not consistent. some groups 1 to 2 inches at 200 yard. advice please! bed first 2" of barrel? different powder? powder charge is between 48 & 50 grains.

TIA

Roger Q

For the 120's:
IMR-7828 From 53.5 grains to 57.5 grains
Winchester WLR Primer

For the 140's:
RL-22 From 40.7 grains to 51.4 grains
Winchester WLR Primer

This one is easy, good ole H4831, I shot up to 58gr w/120`s but was to hot and settled on 57, FANTASTIC groups. I now have a 264 Win Mag to shoot 140`s.

[ 12-30-2002, 18:15: Message edited by: Tim in TN ]

My favorite 6.5-06 load for 120 gr Sierra Pro Hunter:

52.5 Gr VihtaVuori N550
WLR primer
3250 fps 13'from muzzle, chronographed.