alf
Well-Known Member
So yesterday the brown truck dropped off a few boxes of Nosler 142 LR Accubonds. I sat down and compared measurements from an older box of 140 VLD's.....
Berger:
1.395" OAL
.200" boatail length
.455 bearing surface
Nosler:
1.440" OAL
.240" boatail length
.525" bearing surface
After measuring, I threw 200 in the vibrator to give 'em a shiny new moly plating, then proceeded to load up a few for testing. Nothing elaborate, 52-55 grains of H-4831-SC, 3 shots for each, and seated them for a square mark on the ogive.
The platform is a S/S 700, 26" Bartlein 3B contoured 5R barrel, McMillan Sporter stock, and a NF 5.5-22x50 in Seekings rings & bases, weighing in at 10 lbs 12 ozs, chmbered in a 6.5x284 with a .290" neck, .188" freebore.
I set the target up at 270 yards and set up the bench, gun, and chronograph. Temp was 80 degrees, light swirling wind from any/all directions, and mirage up the whazoo. I shot round robin style, one shot at each bull at each charge weight, three times, keeping to 2-3 minute intervals per shot.
Nothing spectacular, but considering the conditions, it wasn't too bad, with 53 and 54 being under 3/4 MOA
Came home, cleaned the gun, and loaded up 30 with 54 grains, and seated them into the lands, to shoot them today at distance.
Berger:
1.395" OAL
.200" boatail length
.455 bearing surface
Nosler:
1.440" OAL
.240" boatail length
.525" bearing surface
After measuring, I threw 200 in the vibrator to give 'em a shiny new moly plating, then proceeded to load up a few for testing. Nothing elaborate, 52-55 grains of H-4831-SC, 3 shots for each, and seated them for a square mark on the ogive.
The platform is a S/S 700, 26" Bartlein 3B contoured 5R barrel, McMillan Sporter stock, and a NF 5.5-22x50 in Seekings rings & bases, weighing in at 10 lbs 12 ozs, chmbered in a 6.5x284 with a .290" neck, .188" freebore.
I set the target up at 270 yards and set up the bench, gun, and chronograph. Temp was 80 degrees, light swirling wind from any/all directions, and mirage up the whazoo. I shot round robin style, one shot at each bull at each charge weight, three times, keeping to 2-3 minute intervals per shot.
Nothing spectacular, but considering the conditions, it wasn't too bad, with 53 and 54 being under 3/4 MOA
Came home, cleaned the gun, and loaded up 30 with 54 grains, and seated them into the lands, to shoot them today at distance.