RPR .308 accuracy issues RESOLVED

[Kruel J]

For me the shavings were thick enough to prevent me from closing the bolt because of .001 of an inch worth of brass in different areas. How it affects it I can't honestly say scientifically. I could speculate it has something to with deforming the pill in some manner or putting it at just slight enough angle to be sent down the barrel less than true. Obviously something is not allowing your bullets to stabilize. Curious if you have seen any keyholes or larger than normal holes?

Anywho, lot's of good advice for other things to check by the others and even better some options for continuing your range tests. I want to believe a really good chamber scrubbing, break out your grandfather's magnifying glass and scrub. A little mothers has never hurt any of my firearms when used lightly and with a specific goal in mind. That also helped me a little, but I caution polishing to anyone to do at their own risk. I do not do it to all my firearms, only those that exhibit behaviors that may benefit from a little extra touch. (I also offer at the end of this trying to hide that I have even put some down a barrel or two in early stages of break in. I do not recommend this unless again you have a specific task intended, like fire lapping for instance.

Funny, I did polish up the bolt with Mothers before firing. Didn't lap the mount, as it's a one piece. Burris PEPR.

 

[Joe13]

@SKrueger is my brother from another mother (look at our nics for a minute and you'll see why). And yeah man, it was a great day on the range with him and @Joe13 for sure. Two friends for life now. But still, this sh** is really bothering me. I know I am better than what I did today. Period. All day long. Twice on Sundays.

And I'm down for a shoot with you too brother.

I'm down anytime.

Then you out shot me, so I'll have to try harder next time

 

[v0lcom13sn0w]

guys dont force me to show all you guys what a stock savage hunting rifle can do

 

[Greenbug]

TBO I don't know, it was bought brand new.

Check it out, it is free if you have a screwdriver!

Set the gun on the butt, muzzle up.
Loosen the stock screws paying attention to how tight or not tight they are when you loosen them.

Retighten the front action screw first while firmly holding the barreled action against the recoil lug.
Then tighten the rear screw last. Should be about 65 inch pounds or so in that chassis style stock to be properly set.

 

[Kruel J]

Check it out, it is free if you have a screwdriver!

Set the gun on the butt, muzzle up.
Loosen the stock screws paying attention to how tight or not tight they are when you loosen them.

Retighten the front action screw first while firmly holding the barreled action against the recoil lug.
Then tighten the rear screw last. Should be about 65 inch pounds or so in that chassis style stock to be properly set.

I'll try this. Any advice here is welcome!

 

[65guy]

Funny, I did polish up the bolt with Mothers before firing. Didn't lap the mount, as it's a one piece. Burris PEPR.

bubblegum, I got nothing then!

 

[Greenbug]

I'll try this. Any advice here is welcome!

Might as well take the barreled action completely out of the stock and make sure there is no debris in there before you retighten it back up!

 

[Kruel J]

Me at 100 with a 77/22 WMR:



Me with my 3-gun AR and a 1-4x24 Vortex at 100:



Both on sandbags. Point is I know it's not me. Man, this is really eating me up. $2000+ into this "precision" rifle.

And yeah, both targets have a flyer. I'm human. So sue me.

 

[Greenbug]

Sometimes on those chassis style stocks you will have to re-tighten the stock a few times to get it to finally seat properly and stay where you put it. Check the torque every 10 or so rounds to make sure it is staying where you set it. A little bit of threadlocker on the action screws is not out of line here if it keeps loosening up.

 

[Kruel J]

Sometimes on those chassis style stocks you will have to re-tighten the stock a few times to get it to finally seat properly and stay where you put it. Check the torque every 10 or so rounds to make sure it is staying where you set it. A little bit of threadlocker on the action screws is not out of line here if it keeps loosening up.

Well, now I know what tomorrow evening looks like!

 

[erslll]

Check it out, it is free if you have a screwdriver!

Set the gun on the butt, muzzle up.
Loosen the stock screws paying attention to how tight or not tight they are when you loosen them.

Retighten the front action screw first while firmly holding the barreled action against the recoil lug.
Then tighten the rear screw last. Should be about 65 inch pounds or so in that chassis style stock to be properly set.

We are talking about a Ruger Precision Rifle here. No action screws to tighten on the stock.

 

[v0lcom13sn0w]

just watched a ruger RPR disassembly video that ruger made. there really isnt much to take apart on these. looks like two allen head bolts on the "lower" and when going back together the guy did tighten the front most one first

 

[erslll]

What grain projectiles are you shooting?

The bolt closing issue would be my main concern. If head space is wrong, it could mess all kinds of things up. The good news is you can change the head space on the RPR really easily but you will want to have the gauges to do it.

Worst case, I have a 308 take off barrel that shot pretty decent that I would sell for a reasonable price but I would think if it came to that, you would be better off sending it back to Ruger.

 

[v0lcom13sn0w]

@Kruejl hey @IronMonster mentioned he had some gauges. might consider hittin him up.

gotta love NWFA. pretty soon there will be an 80% jig and router floatin around the forum LOL kidding kidding....

 

[Kruel J]

I got a set of .308 go/no go gauges if you need to borrow them. If I can find them (pretty sure I can)

So if it's no-go, do I send it back to Ruger?

 

[Greenbug]

So if it's no-go, do I send it back to Ruger?

YES!!!

THEN GO BUY A TIKKA!

 

[Kruel J]

YES!!!

THEN GO BUY A TIKKA!

Everyone's a comedian. Don't quit your day job. Unless it's as a comedian.

 

[v0lcom13sn0w]

both. i would say that if the "go" gauge is hard to close to send it to ruger. the bolt should be easy to close on GO.

if it closes on NO GO, you have a headspacing problem also.

 

[v0lcom13sn0w]

Everyone's a comedian. Don't quit your day job. Unless it's as a comedian.

lol ive never shot one. always been a savage guy. mine are just hunting rifles tho.

 

[erslll]

So if it's no-go, do I send it back to Ruger?

You could or the easier (or quicker) solution is reset the headspace yourself. Very easy to do on the RPR as the headspace is set with the barrel nut.