Problem Rifle, accuracy issues

Bluedeacon

Bluedeacon

New member
Ok guys, all experts, anyone with an idea, or can cast spells, make voodoo magic or do anything else to make this piece of junk shoot, feel free to step up and offer a solution other than getting rid of it.
Remington 600, caliber 308, (from here on will be referred to as the "Possessed rifle from [beeep]") Wood stock, that has been thinned and cut down. It's been free floated, has the factory 1 in 10 twist barrel. After trying SEVERAL different types of ammo, including match grade Federal, and hand loads, the best group I've got is SIX inches at 100 yds! (Yes from a bench) I've tried 150 Remingtons, a couple of 165s and several 175s.
I swapped out the scope and base, no good. Put the original scope on one of my 1000 yard match rifles, it shoots well, and holds a zero, so it went back onto the possessed rifle from [beeep]. I then had a pillar block placed in the front (no room for one in the back) and tried again. No luck.
After this, I tried pressure bedding the front of the rifle. No luck.
After torquing the action screws, I also had the dang thing bore scoped, it looks ok. The best groups I've got so far, (and I think they were accidental) were 3 inches! I don't expect this thing to be a match rifle, but 1 and a half inches at 100 yards would be nice.
So let's hear it guys, what's with this thing?
 
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I'd check crown before anything else listed, followed by the bore. How did it shoot before all the free-floating etc?
 
Crown is fine (checked it when we bore scoped it, it does have the vent rib, and don't know how it shot before, we found a Remington 600 action, barrel, and stock and put it all together and WALA, junk. The primers, fired cases etc. all look good and nothing excessive. My best guess is the barrel is bad, I just can't see it.
 
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I would suggest an exorcism. Seriously, you are probably correct and it is just a poor barrel and it may not be something that you can see.
 
I've always wondered how the ventilated rib might affect accuracy on the 600, of the 2 I've owned one shot great(6mm) the other not so much(.308).
 
You didn't say anything about bedding the action? Are these big group's in what night be to specific places? How about the rings and bases? Also check the frong guard screw and make sure it's not going thru and a lug resting on it.

Worst comes to worst, I'd have it rebarrled. Could be the chamber was bored badly.
 
Blackburn, I take it your 308 had the vent rib and the 6mm did not?
Yeah Don, the action has been bedded, and I even had another guy that does bedding look it over and he thought the bedding job was fine. The front screw I checked right off the bat.
 
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Originally Posted By: Don FischerYou didn't say anything about bedding the action? Are these big group's in what night be to specific places? How about the rings and bases? Also check the frong guard screw and make sure it's not going thru and a lug resting on it.

Worst comes to worst, I'd have it rebarreled. Could be the chamber was bored badly.

I actually have a 600 in 308 that has this problem - it was restocked and the front action screw reaches in far enuf to actually STOP the bolt lug from turning into the recesses when properly tightened. I need to probably pillar bed the action a bit longer than it already is and maybe shorten the screw some more - it was already shortened when I got it. Something to check.
 
Mike B, yes, originally the front screw was too long, trial and error got it where I could torque it down without bottoming out, so that problem got addressed. The action and barrel were seperate when we started the project.
 
Well im not a expert! The field of gunsmithing is to specialized & requires the learning of many trades to make any such claim.. IMO,there are not many experts.! Rather only specialized experts.... But anyhow...

A couple other thing you may (or may not) consider.

Headspace - the distance from the bolt face to whatever retards the foward movement of the case.. (Lol...) Anyhow, it can kill accuracy & brass life due to a lack of support & alignment & should be kept at the minimum..

Bolt lugs - should be lapped in for atleast 85% bearing surface in there recceses before headspaceing the rifle. If the bolt lugs are not bearing evenly the action flexes under pressure due to a lack of support from the non-bearing lug. There is "no fix" for the problem except to lap the lugs, set the barrel back & re-headspace.

Maybe that will help.. Or maybe not..
 
A piece of black pipe with no rifling would probally shoot that good, maybe the crown looks good but i believe it should be chucked up and checked, i will bet its not as good as it looks, A very fouled barrel will do this, I have never seen good or bad bedding equal these groups, even if the bedding is very poor it wont make it shoot 6in. groups. ed
 
Get rid of it. Life is to short and money comes to hard to throw it away on something like this. You need to ask yourself. How much time and money do I want to lay out on this rifle? I don't mean to start something but you could sink more time and money into it than you'll ever get back from it
 
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I'm more than willing to be done with it, except for one minor detail. I HAVE to know why. I've just got to know. I can't give up on it even though it's worthless.
 
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