scope keeps losing zero on Rem. 700
This is kind of a carry-over from my post about BSA scopes...
For years, I've been having trouble keeping my Rem. 700 BDL SS DM (in .300 win) and Leupold Vari-X III 4.5x14x50 AO sighted-in. Every year I have to re-sight it. It has been off as much as a foot before. During season it is fine and doesn't shift. I can shoot at the range as much as my shoulder and bank account can handle and it doesn't shift at all. I have replaced the rings and mounts with the new Leupold Torx style and it still happens. It seems to only happen when I travel. I wonder if part of the problem is that the bell of the scope is so much bigger than the width of the rifle. I'd think it would absorb a lot of the pressure of the weight of the rifle. I carry it in an ABS hard-side (albiet cheap) double-rifle case, by itself. It goes into my toolbox and nothing gets set on it, unless it is my backup gun which is also in a double case by itself. In the off-season, it sits in an aluminium 4 gun case. I have had a basic check of the rifle by a 'smith and he didn't find anything. I thought about trying another scope and I can narrow down my options. If it still does it then it is most likely the receiver/barrel fit of the rifle. If it goes away, then I probably have a problem with the scope...
Any ideas???
For years, I've been having trouble keeping my Rem. 700 BDL SS DM (in .300 win) and Leupold Vari-X III 4.5x14x50 AO sighted-in. Every year I have to re-sight it. It has been off as much as a foot before. During season it is fine and doesn't shift. I can shoot at the range as much as my shoulder and bank account can handle and it doesn't shift at all. I have replaced the rings and mounts with the new Leupold Torx style and it still happens. It seems to only happen when I travel. I wonder if part of the problem is that the bell of the scope is so much bigger than the width of the rifle. I'd think it would absorb a lot of the pressure of the weight of the rifle. I carry it in an ABS hard-side (albiet cheap) double-rifle case, by itself. It goes into my toolbox and nothing gets set on it, unless it is my backup gun which is also in a double case by itself. In the off-season, it sits in an aluminium 4 gun case. I have had a basic check of the rifle by a 'smith and he didn't find anything. I thought about trying another scope and I can narrow down my options. If it still does it then it is most likely the receiver/barrel fit of the rifle. If it goes away, then I probably have a problem with the scope...
Any ideas???
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If you are not "chasing" the bullets,...I would venture a guess that it isn't a scope or mount issue.
I would tend to look at barrel and action issues. Are the action screws torqued correctly?
Is there a spot in the barrel channel that needs to be removed?
Is there a correspondence between shooting a fouled barrel during the season and then shooting a "down to the metal" clean barrel when it loses zero? Cleaning your barrel while it is still grouping can change your zero until the barrel fouls enough to group in it's original position.
I would also look to see if the recoil lug recess has or shows signs of wear. If it has an area that is unevenly worn,..then you just need a little skim bedding and that should fix it.
Just some suggestions,....it's always trial and error. I have had the mount issue,..the barrel channel issue, and the recoil lug issue cause me problems in the past.
why chase the game when the bullet can get em from here?....
Got Balistics?0 -
sounds like a stock issue, barrel/stock or action/stock contact points. a good glass bedding should help. maybe pillar bedding?. 0 -
It is the synthetic stocked version of the gun... The only barrel contact is at the very front of the stock and is just barely touching on each side.
Once I sight it in, it seems to be good for as long as I shoot. I have shot 50 rounds through it one day without cleaning just to see if that would do it. I then thoroughly cleaned it and fired 10 more with it still being "on".
I think I will slightly file the nubs on the stock, but not actually try to float it. If it does it again (which I expect it will) then maybe it's time to make a custom out of it and get another sporter. [:)]0 -
bambi: i must agree with justc. i would lean more toward the barrel/bedding as the possible problem. try this:
put the gun in a vice. apply pressure (downward) on top of the action , then try to apply pressure on the muzzle end(downward).
what you are looking for is a "rocking" motion that would indicate improper bedding/barrel misalignment/loose action screw(bottom).
good luck[:p]0 -
Hey bambihunter! One other thing that I had happen was the cold. My scope was fine on my 12 ga., sighted in and couldn't figure what the H**l was going on when I got out in the woods. When I checked zero, it was about 80 degrees. A couple weeks later in season it was about zero (yeah, what they say about Minnesota is true and then some). When I went to go home after being out in the cold the scope nearly fell off the gun. Luckily, hadn't seen anything that day. I would never have believed that 80 degrees could get things so loose they'd be floppy. Tightened up the mount screws (everything was loose) in the cold and everything has stayed since. Just a thought. 0
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