Post by: Drop Tine on September 22, 2015, 07:06:13 AM
Post by: HntnFsh on September 22, 2015, 07:14:20 AM
Post by: Woodchuck on September 22, 2015, 07:15:18 AM
Post by: headshot5 on September 22, 2015, 07:19:25 AM
Is this an original M77 or a MKII?
Post by: bhawley76 on September 22, 2015, 07:25:05 AM
Post by: Mongo Hunter on September 22, 2015, 12:00:14 PM
I have had my m77 ruger 7mm for 12 years all of the sudden having trouble getting it zeroed anyone having this problem with this rifle?
There's probly half a dozen reasons. I know someone else with one of these rifles that's fairly old and the thing is still a tack driver. so ammo change could be a possibility. check your rings and bases to see if they are tight. check the stock make sure its properly tight and not swollen or cracked anywhere. final thing I would check would be the scope, optics sometimes get hit just right or wear out and wont hold zero anymore.
Post by: Drop Tine on September 22, 2015, 05:21:29 PM
Post by: JJB11B on September 22, 2015, 05:25:06 PM
Post by: Mongo Hunter on September 22, 2015, 08:23:56 PM
its got a synthetic stock had a leupold scope on it when it seemed to start going south just put a vortex HD with new mounts and rings still the same problem. have always ran factory Rem 175gr core locks. thanks all for feedback.
Is it all over the place? Are you getting it zeroed then it moves? What's it doing exactly?
Post by: Drop Tine on September 23, 2015, 02:05:24 PM
Post by: birddogdad on September 23, 2015, 02:14:33 PM
last time out took 14 shots 8 in the bull ring 6 were from 6 to 10 inches all over the board and yes was using a vise.
this doesn't answer mangos question
are you starting off grouping then it not or are you spraying? are you shooting cold? is it drifting after a few shots? does it ever zero? lots of potential reasons if in a sled, that eliminates flinch (at least it should). same ammo you have always used or something new? have you cranked the reticles to end ranges?
I would start to eliminate one thing at a time. most intrusive items first or those that would affect follow on eliminations ie scope mounts and clean barrel, should maybe start there. torque and lock-tite them.. reinstall scope and bore sight like you are sighting in a new rifle and don't shoot the barrel hot take your time.
Post by: thinkingman on September 24, 2015, 07:39:37 AM
its got a synthetic stock had a leupold scope on it when it seemed to start going south just put a vortex HD with new mounts and rings still the same problem. have always ran factory Rem 175gr core locks. thanks all for feedback.I was going to make some snarky comment about if it had a Leupold scope on it.
Time to make that time-honored trip to Beaverton.
Otherwise, I would guess fouling.
Post by: fishngamereaper on September 24, 2015, 07:42:12 AM
Post by: birddogdad on September 24, 2015, 07:45:22 AM
Mine did that couple years ago. Scrubbed the living daylight out of the barrel and the groups came back in tight.
butches boreshine soak.... :yeah: till you get no more color....
Post by: Mongo Hunter on September 24, 2015, 08:03:59 AM
Mine did that couple years ago. Scrubbed the living daylight out of the barrel and the groups came back in tight.
I would say clean it really good as well. also 14 shots is a lot for a hunting rifle if it has a light weight barrel and it doesn't have time to cool. my 700 in 7mm will start to "pattern" after about 6 shots in a row, but before that it stacks them on top of one another. if I let the barrel cool after about a 4 shot string its just fine and will maintain accuracy.
Post by: huntnphool on September 25, 2015, 10:07:16 AM
I have had my m77 ruger 7mm for 12 years all of the sudden having trouble getting it zeroed anyone having this problem with this rifle?
There's probly half a dozen reasons. I know someone else with one of these rifles that's fairly old and the thing is still a tack driver. so ammo change could be a possibility. check your rings and bases to see if they are tight. check the stock make sure its properly tight and not swollen or cracked anywhere. final thing I would check would be the scope, optics sometimes get hit just right or wear out and wont hold zero anymore.
I have a couple of them and one has been my go to rifle for 30 years without a fail. I'm with the majority, betting it's a scope or mount issue. :twocents:
Post by: freezerfull on September 30, 2015, 08:36:56 PM
Post by: dewandgin on September 30, 2015, 09:48:34 PM
Post by: Drop Tine on October 01, 2015, 07:05:23 AM