.270 WSM and Pac Nor BBL- Smokin' - 06/12/10
Just got back my barreled action from Pac Nor this week- had them screw on a 24" stainless, 3 groove, 1-10" onto a Wby Vanguard action.
Still into the break-in period, as recommended by the folks at Pac Nor, as of today, only 40 rounds down the tube, but this one is going to be a shooter. Last 3-round 100 yd. was at .75", in breezy conditions. My experience with Pac Nor barrels says it's only going to get better from here.
Now for the interesting part- I handloaded up some 140 gr. Accubonds, ahead of 64.5 gr. of RL 22, for this break-in. Chrono velocity averaged 3090 fps- so so, ho hum, nowhere close to what I want eventually.
Happened to have a box of Federal Vital Shok, 140 gr. Accubond ammo, which I also shot today. Not only is it sub-moa accurate, but the average chrono velocity for nine rounds is 3269 fps!
Their advertised velocity for this round is 3200 fps. (temp today was 55 degrees). Absolutely no signs of pressure problems, no hard bolt lift, no flattened primers, etc.
COAL for this ammo is 2.812", which is just barely off the lands in this barrel.
I have had similar results with this Federal Vital Shok ammo, in my .280 Rem., also with the 140 gr. Accubond bullet.
Yeah, I know this ammo is expensive, but it's gonna be real hard to justify handloading for hunting purposes with this factory stuff giving these kinds of results.....
Still into the break-in period, as recommended by the folks at Pac Nor, as of today, only 40 rounds down the tube, but this one is going to be a shooter. Last 3-round 100 yd. was at .75", in breezy conditions. My experience with Pac Nor barrels says it's only going to get better from here.
Now for the interesting part- I handloaded up some 140 gr. Accubonds, ahead of 64.5 gr. of RL 22, for this break-in. Chrono velocity averaged 3090 fps- so so, ho hum, nowhere close to what I want eventually.
Happened to have a box of Federal Vital Shok, 140 gr. Accubond ammo, which I also shot today. Not only is it sub-moa accurate, but the average chrono velocity for nine rounds is 3269 fps!
Their advertised velocity for this round is 3200 fps. (temp today was 55 degrees). Absolutely no signs of pressure problems, no hard bolt lift, no flattened primers, etc.
COAL for this ammo is 2.812", which is just barely off the lands in this barrel.
I have had similar results with this Federal Vital Shok ammo, in my .280 Rem., also with the 140 gr. Accubond bullet.
Yeah, I know this ammo is expensive, but it's gonna be real hard to justify handloading for hunting purposes with this factory stuff giving these kinds of results.....