Ruger m77 accuracy issues

[CBH Australia]

Well I've gone and made things worse
I was tinkering at the range and thought I'd try the torque screw recommendations, front screw i got to 65 in lbs but trying to get 45 on the rear action screw the trigger guard metal broke. Now I'm no gunsmith guys, but I thought i could torque a screw! Any ideas where i went wrong?

I will note, the screws had some wear on them like they've been subjected to some amateur smithing before (gun was bought used). And both action screws were not very tight at all to begin with.
Either way, I'm now shopping for a trigger guard.
View attachment 774847

I had a similar problem and the rifle would not group.
It was an original M77 with the Tang safety in .300wm.

Someone picked the problem before I did and I ordered a trigger guard online. ( Btownells I think)
The replacement did look to be better quality than the original die cast one. The rifle grouped after that and was later sold as I changed things around. That was a mistake. They are a should action and I should have kept it.

I would look to see if you can put a pillar or a shim under that area so it can be torqued accordingly without fear of this happening.

 

[CBH Australia]

Not saying it will be less accurate. But a clean bore will generaly have a different poi than a fouled bore.

Try this. Take your rifle to 100m/ yds.
Fire one shot at a target then on another target shoot a 3 round group and chrono the shots.

Go home clean the piss out of the rifle.

Repeat same test next day same point of aim on new target
Then shoot to group

I have read about fouling shots.

My plan is to clean my rifle, take it out to check poi. Probably let it cool and take a shot to confirm. Then it should be ready for the next hunt and I should probably clean it when I get home.

 

[Bob Nelson 35Whelen]

I have read about fouling shots.

My plan is to clean my rifle, take it out to check poi. Probably let it cool and take a shot to confirm. Then it should be ready for the next hunt and I should probably clean it when I get home.

@CBH Australia
Chris I just pick my rifles up and go hunt.
They are stored well and I know they are good to go without checking them.
First shot will be in the money.
Bob