The Final Finish bullets can work wonders sometimes if the problem is in the barrel.I have a 300 Win Mag that just never shot worth a damn.I ran the whole 50 bullets through it and it shoots better than ever.Shot a 1/4" center to center clover group at 200yds after that so I guess it didn't hurt it.This rifle now shoots better than ever.I did a few more using less bullets and it improved them as well.I have a Ruger 1 that was about an 1 1/2 inch shooter.I ran just five of the Throat Maintenance bullets through it and it can shoot well under an inch now.
200yd 300 Win Mag group
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Ruger 1 went from shooting 1 1/2" groups to this 5 shot group
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~Molɔ̀ːn Labé Skýla~
As Bob Hagel would say"You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong."Good words of wisdom...............