bedding and change POI

DsrtRat

DsrtRat

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helped a buddy bed his Remington 700 22-250 last week. I used Devcon as I always have. The entire action was bedded and about 1.5 inches o fthe barrel past the reoil lug.

The gun shoots great groups but as it starts to heat up, the POI shifts about 1/2 down and to the right. If you keep shooting it, the POI stays at the new position and the groups are under .5.

Anyone know what might cause this? Would relieveing the bedding under the barrel stop this? I have seen many people bed the first part of the barrel and my 700 in .223 is bedded there with no POI shift.
 
bedding

what contour is your barrel, I have noticed this with lighter sporter contour barrels. My daughters 7-08 remington fluted sporter barrel does something similar
 
Address bedding concerns before wasting money on Cryo. I have not seen a barrel which wandered due to stresses in the barrel and I have installed and tested hundreds. Even barrels which I KNEW were stressed did not walk their shots.
I don't like to bed the rear portion of the barrel. Regards, Bill.
 
I had a 220 swift that was similar and it always did it even when I removed the bedding from under the barrel the first few shots were always high to the left, I ended up replacing the barrel once it started losing accuracy and the new barrel didn't do it .
 
I have not seen a barrel which wandered due to stresses in the barrel and I have installed and tested hundreds. Even barrels which I KNEW were stressed did not walk their shots.
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I have had a few factory barrels that warped as they heated up, changing their POI's. Repeatable too.

Switched to quality stressed relieved match barrels and the problems have gone away.
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Two very experienced people, and two very difference opinions in respect to the effects of stresses in barrels.
 
Dan, I did not shoot it before we bedded it. From what he is telling me, the groups have gone from just under an inch to .5 with the bedding. The only down side is that POI makes that shift everytime it gets warmed up after 10 or so rounds down the pipe. Then the POI stays the same and it groups well.

stubblejumper, I agree. Unfortunately, that seems to be the way with guns. What works on gun ABC and D, might not work on F. But then ACF might like something that won't work on B and D and so on.

On ething for sure, the groups have tightened up by bedding it. I think the next (and least expensive ) thing to try is start reducing the amount of bedding under the barrel and see what happens.
 
If this is not a high volume gun, couldn't he just live with it?
If it groundhogs or coyotes he will be shooting maybe 3 shot string hours apart. Lots of time for the barrel to be cool and hit where its supposed to.
 
It could probably be lived with but if the problem can be solved, why not go for it?

Kinda like shooting on the line next to your buddy Murddock. It can be done, but why?
 
DsrtRat said:
helped a buddy bed his Remington 700 22-250 last week. I used Devcon as I always have. The entire action was bedded and about 1.5 inches o fthe barrel past the reoil lug.

The gun shoots great groups but as it starts to heat up, the POI shifts about 1/2 down and to the right. If you keep shooting it, the POI stays at the new position and the groups are under .5.

Anyone know what might cause this? Would relieveing the bedding under the barrel stop this? I have seen many people bed the first part of the barrel and my 700 in .223 is bedded there with no POI shift.
Click to expand...

you should remove the bedding under the barrel 1/2'' at a time. some need no bedding under the barrel some need a little. I find in my hunting rifles about 1/2''
of bedding ahead of the recoil lug usually does the trick
 
Funny you mention that Dan as my 700 in .223 had one bedded into the original stock. It shot very well with that stock but also shoots very well free floated.
 
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