Posted by: roundoak
Ruger M77 Accuracy Fix - 02/08/10
A member of the the gun club was complaining the other day about the accuracy falling off on a M77 TS 270 Winchester. He did some of the usual stuff to try and remedy...scope base and ring screws, stock screws, clean barrel and etc. He shoots factory 130 and 150gr Ptd Soft Pt Core-Lokts and they always group about 1 1/2" at 100yds ever since the rifle came out of the box. He sighted the rifle in just before the 2009 November Wisconsin Whitetail season and after a couple of shots he had 3 - 5 inch three shot groups on the 100yd target. He hunted with it as is.
I had him bring the gun along with the targets to me a couple of weeks ago. Took the gun apart, got out a 1/4" round file and filed wood just a tad in the very back end of the front screw hole. Put it back together...tighten the front screw and snug tighten the center and back screw. Told him to go fire it and let me know.... 1 1/2" groups returned and my wife and I have a steak dinner coming.
I advised him to take gun apart and apply a wood sealer to the rasped area for piece of mind.