06-02-2020, 01:10 PM
Only factory ammo I have ever shot was Horandy 123 SST.
First 6.5 Grendel was a complete upper from BCA 20" stainless fluted and it shot all over the place. 5" groups at best.
Sent it back for replacement. It took 60 to 70 rounds through the new barrel to get it to start shooting consistently with hand loads sub MOA. With the Hornady factory 123 SST 2 1/2".
Second rifle 18" Oden Works intermediate gas. I built this rifle from the ground up using Anderson upper and lower frame.
It would do 1 1/2 to 2" with factory Hornady 123 SST. With hand loads will average 1/2 MOA.
It turned out that neither of the barrels liked the 123 SST bullet no matter what load I tried. 120 Sierra Pro Hunter and Speer Gold Dot are what they REALLY like with IMR8208. I have not seriously fooled with other weight and makes of bullets mainly because I have too many irons in the fire. I just found a deer hunting load and quit fooling with others. Hope to do some tinkering with other bullets this year.
First 6.5 Grendel was a complete upper from BCA 20" stainless fluted and it shot all over the place. 5" groups at best.
Sent it back for replacement. It took 60 to 70 rounds through the new barrel to get it to start shooting consistently with hand loads sub MOA. With the Hornady factory 123 SST 2 1/2".
Second rifle 18" Oden Works intermediate gas. I built this rifle from the ground up using Anderson upper and lower frame.
It would do 1 1/2 to 2" with factory Hornady 123 SST. With hand loads will average 1/2 MOA.
It turned out that neither of the barrels liked the 123 SST bullet no matter what load I tried. 120 Sierra Pro Hunter and Speer Gold Dot are what they REALLY like with IMR8208. I have not seriously fooled with other weight and makes of bullets mainly because I have too many irons in the fire. I just found a deer hunting load and quit fooling with others. Hope to do some tinkering with other bullets this year.