Remington Model 700 still shooting strange

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jfountain2

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I friend on another forum posted this today... any advice for him would be greatly appreciated

Remington Model 700 still shooting strange

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Perhaps someone here can give me some advice?

I have a Remington Model 700 mountain rifle chambered in 280 / 7mm express, the rifle is about 12 years old. Up until last year, the rifle shot great. I was able to make 3/4 - 1 inch groups at 100 yards. For hunting east Texas whitetail deer at 75 - 100 yards that kind of group is fine with me.

Last year the rifle started shooting strange. One round would hit almost 2 feet to the right, the next round would hit almost 2 feet high. It was if the rifle was shooting in a circle. Some of the advice I was told "your scope rings are loose, tighten them up" - so I made sure the scope rings were tight, which they were.

Then I went out and bought a new scope. Its only a $100 bushnell, but the rifle is still shooting about 2 feet off at 100 yards.

I do not know what else to try. So far I have shot 2 boxes of ammo trying to get the rifle sighted in, and it keeps hitting about 2 feet (24 inches) off. One shot hits usually to the right and then the next round hits straight up.

For 10 years this rifle has shot straight and narrow. During that time my rifle and I have taken about a dozen deer. Last year a round hit high and cut the deers spine, dropping it in its tracks. Instead taking the chance of wounding a deer, I have to get this problem fixed.

Until the problem is resolved, I will have to use a Marlin 336 in 30-30 - which is a fine rifle by its own standing.

Any suggestions?????
 
I had a similiar problem with my Mountain Rifle in .257 Roberts. While not as major a shift, mine would shoot 2 in. to the right then the next shot would be dead on and back and forth, I agonized over it for a year. Got the same advise on scope and mounts and pressure point in stock and so on. I finally fixed the problem when I got a bore scope and looked really closely in the barrel. You wouldn't imagine what I saw. I did two things to fix it. First, I got some CR-10 and got a load of copper out of the barrel. Next, I took it to a competent gunsmith and had the barrel lapped. The other thing you have to be really careful about with these rifles is not to push on or touch the barrel when you shoot them. The barrel lug was not real tight in the stock so I took a piece of plastic and shimmed the lug with it. After all this, the gun is back to putting 5 in an inch at 100 yards. You really have to keep these barrels clean. You also might want to consider a couple of other things as well. Get some Blue Wonder foaming bore cleaner and clean it with that. I have also plugged the barrel and filled it with Shooters Choice and let it set for half a day or so to really get the crud out of it.
Try this and see if it doesn't improve your shooting.
 
I was gonna suggest a severe case of copper fouling.

Use any good brand of copper solvent and clean the heck out of it and see what comes out.
http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=9807&title=BENCH REST-9 COPPER SOLVENT

Follow that up with another cleaning with JB Bore Compound'
http://www.brownells.com/aspx/NS/st...tle=J-B~ NON-EMBEDDING BORE CLEANING COMPOUND

http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=1161&title=J-B~ BORE BRIGHT

Also, make sure the guard screws are torqued properly, or at least tight.

rcmodel
 
My bet would be that the scope base is loose on the rifle.

Bullets landing two FEET apart is a lot more than I would attribute to fouling. You can clean, tighten rings and swap scopes all day long and if the base is shifting under recoil, you're scrod.
 
The copper fouling is a good bet but you might want to check the crown as well, look for a burr or a ding even a small one can cause problems.
 
I have given a few Remington 700 rifles a tune up. Clean the barrel, glass bed the action, free float the barrel, adjust the trigger pull, lapp the bolt locking lugs, recrown the muzzle, trim the magazine box so that it does not have any pressure on the action or floor plate. All screws should be at about 40 lbs.
 
You'd have to ding the crown pretty bad to get a 2 foot miss. I dinged the crown on my 700 and groups opened up to 3-4 inches at 100 yards, but 2 feet is pretty extreme for any circumstance. I've never heard of copper fouling do something like that, but then again I've never heard of many things ;). Scrub that bore until you get clean patches after running a brush through it.
 
I worked on a Browning 7mm Mag BAR belonging to my dentist a couple years ago that was doing the same thing.
Wouldn't even keep shots on paper at 100 yards, and some that hit the paper were key-holed.

What I found:
1. Barrel copper fouled until there was no rifling visible.
It took a couple of days to get it all cleaned out. Getting long strips of copper coming out at first.

2. Loose scope mount screws.

3. Loose eye-piece lock-ring on the Leupold scope.

After all were corrected, the rifle shot 1 MOA with factory loads.

rcmodel
 
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