Did just that. Ran Federal Gold Metal Match through it today. A full box. Nothing better than 2" groups. That is the fourth box of match ammo I have tried. I am calling it a day on this one. I ordered a PSA 16" upper and 2-stage lower. I owned a PSA before this one and shouldn't have gotten rid of it. It did, however, have a 20: barrel and was heavy as a brick. I think the 16" is a good option for maneuverability and barrel length for a suppressor.Buy some Federal Gold Medal Match 168 gr smk factory ammo. If it doesn't shoot sub moa with that stuff then either the rifle or/and the ammo need some work.
I always have a couple of boxes of the FGMM 168smk ammo in case the rifle is not shooting as expected. If the FGMM factory ammo shoots great then I have a problem with my handloads. If the FGMM ammo doesn't group well, then I have a problem with the rifle.
It's a huge time saver that will point you in the direction responsible for the poor accuracy.
Same thing goes for the 223rem FGMM 69smk ammo, and 300winmag FGMM ammo etc.
Why not rebarrel it? Maybe have someone make one out of a Wilson blank?
Did just that. Ran Federal Gold Metal Match through it today. A full box. Nothing better than 2" groups. That is the fourth box of match ammo I have tried. I am calling it a day on this one. I ordered a PSA 16" upper and 2-stage lower. I owned a PSA before this one and shouldn't have gotten rid of it. It did, however, have a 20: barrel and was heavy as a brick. I think the 16" is a good option for maneuverability and barrel length for a suppressor.
I didn't take pics this last time.Show us some pics of groups.
I did not know about the barrel extension. When it comes to rifles, I just don't buy Ruger. In my limited experience, they have consistently under performed.There's another forum with very detailed info on doing this. Might not be a very economical path however. The Ruger uses a proprietary barrel extension, and would have to be reused. Maybe @USAFRet cut get the bore scoped to see if anything is abnormal there. Maybe some fire lapping could improve things at this point.