
01-29-2012, 01:25 PM
|
 |
Super Moderator
|
|
Join Date: Jan 2005
Location: Hilliard, Ohio
Posts: 9,997
|
|
|
Are you using the Champion Automatch (product #AM22) as they were? AM22 and Gold Medal 719 are loaded to 1200 fps MV, but the other three Gold Medal loads, UM22, 922A, and 711, all run at 1080 fps MV to keep out of the transonic range, so they do have a little less recoil for running the semi-auto.
Note, too, that rimfires just inexplicably like some loads better than others. I have little Winchester model 57 sporter and about 20 round of Remington rifle match that's about 50 years old, and the sporter will drill that old Remington into .3 inches at 50 yards, but Eley 10X and other high end loads will open up the groups by 50% or more. I don't know why.
__________________
Nick
__________________________
Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Instructor
NRA Patron Member
"First contemplation of the problems of Interior Ballistics gives the impression that they should yield rather easily to relatively simple methods of analysis. Further study shows the subject to be of almost unbelievable complexity." Homer Powley
Last edited by unclenick; 01-29-2012 at 01:29 PM.
|