RE: Sighting in
 

You need to start over with a clean gun for starters. As someone mentioned you need a good copper solvent cleaner and the barrel needs to be broke in, but barrel break in would not cause a creep.

NOTE:after cleaning a gas operated auto it is especially important to wear safety glasses when shooting next. Cleaner can get in gas chamber.

Go back to the range, shoot and take exacting notes of what happens. Shoot three or four three shot groups, forget the first one.

RE: Sighting in
 

By the way a quick scope change is a good tool, but every time you tighten and loosen rings you run the risk of damaging the scope.

RE: Sighting in
 

Ideaman may be on the right track. If this is a new gun it may need a thourgh cleaning, including the gas port. Since this is a semiauto, any fouling in the gas port may be causing slight differences in the way the action is operating and cause some variability in the accuracy. BTW, what size groups are you getting? The 74 series of Remingtonscan betough to get to shoot well. The one I had years ago was doing good to keep factory ammo much under 2" at 100 yards. A 1/4" of movement was nothing unusual but it didn't usually go in the same direction like you are describing.

Good luck with it. You may want to take the scope off and use the iron sights (if they are on there) at 50 yards to verify if the scope or mountsarea problem.

RE: Sighting in
 

A fouled bore will cause larger groups,but it does not normally cause the point of impact to travel in the same direction with every shot.

RE: Sighting in
 

True, but I was mainly thinking of the gas port and chamber more so than the barrel itself.

RE: Sighting in
 

Still it could throw off the point of impact,but it shouldn't keep walking in one direction.

RE: Sighting in
 

I have all idea we don't have enough info yet. Good notes on the next range session should give insight.