Artful
April 28, 2007, 09:05
Date-April-26-2007
Rifle-Mossburg 800A bolt action Barrel Length-22 inches
Twist-1:12
Temperature-94 (warming up)
Case-Remington mostly
Case Prep-Epoxy Filled to bottom of neck. Flash hole drilled to 1/8”, ˝” up from bottom of case. 17/64” drilled from Case mouth to meet flash hole, Leaving reduced capacity casing. Which was filled with
-8.2 grns of Blue Dot Gun Powder.
Bullet-150gr SP Remington Moly coated loader to the canalure Lee factory crimp applied.
Primer-CCI 250 LR Mag
10 Rounds created and Fired for test.
1st 5 with gun on bench rest cartridge inserted into chamber
1334,_ 1321, _1241, _1270, _1214
2nd 5 with cartrdige chambered rifle tipped up and tapped
1079, 1156, 1191, 1723, 1092
Comments,
Didn’t use same maker in all cases. (we thought we had)
Epoxy fill may not have been consistent as it was loaded to
same area but wasn't weighted or measured but the epoxy stated in same state after first firing. Can only be neck sized at this point.
Powder load was exact in all loads so unsure of why the 1723 fps round?
All rounds fired showed no keyhole effect pretty good grouping.
try varying the powder charge on next go round.
Rifle-Mossburg 800A bolt action Barrel Length-22 inches
Twist-1:12
Temperature-94 (warming up)
Case-Remington mostly
Case Prep-Epoxy Filled to bottom of neck. Flash hole drilled to 1/8”, ˝” up from bottom of case. 17/64” drilled from Case mouth to meet flash hole, Leaving reduced capacity casing. Which was filled with
-8.2 grns of Blue Dot Gun Powder.
Bullet-150gr SP Remington Moly coated loader to the canalure Lee factory crimp applied.
Primer-CCI 250 LR Mag
10 Rounds created and Fired for test.
1st 5 with gun on bench rest cartridge inserted into chamber
1334,_ 1321, _1241, _1270, _1214
2nd 5 with cartrdige chambered rifle tipped up and tapped
1079, 1156, 1191, 1723, 1092
Comments,
Didn’t use same maker in all cases. (we thought we had)
Epoxy fill may not have been consistent as it was loaded to
same area but wasn't weighted or measured but the epoxy stated in same state after first firing. Can only be neck sized at this point.
Powder load was exact in all loads so unsure of why the 1723 fps round?
All rounds fired showed no keyhole effect pretty good grouping.
try varying the powder charge on next go round.