11-16-2014, 07:48 PM
Well the rifle shot just fine. I'm shooting about 1.625" @ 200 yds with an old scope that just isn't designed for this application. My shooting skills can always be improved and it was a balmy 22*F at the range yesterday.
[ATTACH=CONFIG]5862[/ATTACH]
Factory 123 SST loads seemed accurate enough, now I just need to figure out how to make a 123 A-Max reload that shoots the same (or better). I'm starting out with 27 gr of TAC loaded to 2.250" and we'll see where that leads. Using rem 7.5 primers.
This gun is REALLY hard on brass. Hard feed ramp contact is putting vampire marks on neck/shoulder and ejection drama is putting size-able dents in the side of the case. I am going to install the Tubb Carrier weights and see if it helps as much as they claim it does with brass longevity.
Full length resizing was required to get the brass to easily chamber using a finger to push the bolt in and out without the buffer spring. I ended up resizing twice, the second time I ran the shell into the die until the shell holder made contact with the die which solved the chambering issue. My dummy round testing indicates that anything over 2.265" OAL (123gr A-Max) is touching the lands. This seems like a really short gap to jump (from 2.25" OAL) so now I'm concerned with pressure spikes. Any thoughts?
[ATTACH=CONFIG]5862[/ATTACH]
Factory 123 SST loads seemed accurate enough, now I just need to figure out how to make a 123 A-Max reload that shoots the same (or better). I'm starting out with 27 gr of TAC loaded to 2.250" and we'll see where that leads. Using rem 7.5 primers.
This gun is REALLY hard on brass. Hard feed ramp contact is putting vampire marks on neck/shoulder and ejection drama is putting size-able dents in the side of the case. I am going to install the Tubb Carrier weights and see if it helps as much as they claim it does with brass longevity.
Full length resizing was required to get the brass to easily chamber using a finger to push the bolt in and out without the buffer spring. I ended up resizing twice, the second time I ran the shell into the die until the shell holder made contact with the die which solved the chambering issue. My dummy round testing indicates that anything over 2.265" OAL (123gr A-Max) is touching the lands. This seems like a really short gap to jump (from 2.25" OAL) so now I'm concerned with pressure spikes. Any thoughts?