Accuracy problem Remington .270
I have a Sportsman 78 bolt that I have had since new in 1988. If it has had more than 10-15 boxes of ammo shot through it, I would be surprised. It has always been an accurate rifle until a couple years ago.
All of a sudden, it won't group for anything. I have tried 3 different scopes with the same results. It shoots all over the paper at 50 yards. I am about ready to give up and retire this gun! At one time it was very dependable.
Mounts are tight, as well as rings. Someone said it could be the stock causing my problems? I really need some ideas here. Any help would be appreciated..
KB
All of a sudden, it won't group for anything. I have tried 3 different scopes with the same results. It shoots all over the paper at 50 yards. I am about ready to give up and retire this gun! At one time it was very dependable.
Mounts are tight, as well as rings. Someone said it could be the stock causing my problems? I really need some ideas here. Any help would be appreciated..
KB
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It's probably copper fouling, use a good copper solvent and clean the bore per instructions 0 -
Either the Crown / End of the barrel has been dinged or it needs the bore cleaned until a patch Just Damp with bore cleaner comes out after it goes through the bore is as clean as it was before it was used. How often was cleaned in the last 20 years. 0 -
Clean thoroughly.
Touch up the crown.
Torque the action screws.
Freefloat the barrel.
CP0 -
Welcome to the forum...if you have never cleaned out the copper fouling, there is were I would start. Soak a patch with solvent and scrub with a good brass brush to clean out the powder fouling and then go after the copper fouling. You may have layers of powder and copper fouling...when clean try another group. Clean from the chamber end with a bore guide. 0 -
More common than not when I hear this same set of circumstances the problem is copper build up which requires very aggressive copper solvent run thru the bore with a patch on an eyelet jag with a long soak time and reapply, and lots of running a brush back n forth thru the bore followed by several patches on a push jag.
Pretty much the same thing everyone else said... The only thing additional I might add that I have seen before was a broken scope. If all else fails and everything looks good, just shy of taking the gun to a gunsmith for a re-crown job, or even a re-barrel, you might try eliminating the possibility that the scope has internal damage.0 -
kbarrier,
As a simple but important addendum to the thinking that cleaning and copper removal will start to solve the problem, pay close attention to HOW you clean this barrel. DO NOT jam the brush in and out of the muzzle since that will create more damage than could already exist.
Stop just short of the muzzle and slowly push the brush out of the bore.
Remove the brush from the cleaning rod and pull the rod back through the barrel.
Replace the brush, add some cleaner and push towards the muzzle again, repeating as necessary.
This will take a little longer but you will save wear and tear on your crown if it is not damaged already.
Best.0 -
I had problems with a couple of guns. Now I rarely oil the bores or if I do, I wipe it all out. 0 -
kbarrier:
You indicated that "it shoots all over the paper at 50 yards". Is that more than 1 or 2 inch groups? If so, my first reaction is that the most likely culprit, or the worst culprit is not barrel fouling or copper. If you cannot even get a 1 or 2 inch group at 50 yards, I would suspect something else, such as mounts, scope problem, or as indicated above, a badly dinged muzzle crown.
Several times I have had accuracy issues that were determined to be a broken scope ring screw in one instance, and a loose rear focus objective on my scope in another instance.0 -
Among the excellent advice above, check all the screws for proper tightness. Stock screws and scope mounts often work loose. I have got a few great deals on inaccurate rifles that needed a removal of a lot of brass fouling or loose scope mounts. Free floating the barrel might help but for that to be meaningful something must have physically alter the stock if the rifle shot accurately before. 0 -
kbarrier,
Well, since we haven't heard back for the original poster, I thought I would answer some of the questions and comments regarding my post above about not being so aggressive with brushes while cleaning your barrels. The muzzle and crown take the most abuse when folks really get into aggressively cleaning and stroking the bore brushes back and forth. Here is an example, extreme maybe but an example none the less.
I've looked at hundreds (probably thousands) of barrels, made barrels and seen all the possible ways a barrel can be damaged. Improper cleaning will do more damage to a barrel than actually shooting it.
Best.0
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