Scope Lose Zero-after disassembly
10-13-2008, 12:26 PM
#1
Fork Horn
Thread Starter
Join Date: Nov 2005
Posts: 105
Scope Lose Zero-after disassembly
Just bought the Nikon BDC 250 for my Omega, planning on taking it to the range when I get back from my honeymoon.
I was thinking after reading about other posts-when i take the barrel out of the stock to clean after shooting, will my zero be affected after I put her back together--it is just held in by 2 screws-and is not free floated. The camo thumbhole stock holds my barrel like a hot dog in a bun.
The scope obviously isn't moving, but could the zero be significantly changed due to how tight I tighten the screws that hold it all together?
What have you all experienced?
I was thinking after reading about other posts-when i take the barrel out of the stock to clean after shooting, will my zero be affected after I put her back together--it is just held in by 2 screws-and is not free floated. The camo thumbhole stock holds my barrel like a hot dog in a bun.
The scope obviously isn't moving, but could the zero be significantly changed due to how tight I tighten the screws that hold it all together?
What have you all experienced?
10-13-2008, 12:56 PM
#3
Fork Horn
Thread Starter
Join Date: Nov 2005
Posts: 105
RE: Scope Lose Zero-after disassembly
cayugad,
I am looking more at taking the barrel on and off for cleaning-I know there are some scope mounts that allow assembly and disassembly with a return to zero. But my scope will stay on.
My concern is with muzzle vibrations and the fact that the barrel is not free floated-differences in barrel to stock tolerances as I take the barrel in and out for cleaning over time.
I am looking more at taking the barrel on and off for cleaning-I know there are some scope mounts that allow assembly and disassembly with a return to zero. But my scope will stay on.
My concern is with muzzle vibrations and the fact that the barrel is not free floated-differences in barrel to stock tolerances as I take the barrel in and out for cleaning over time.
10-13-2008, 01:07 PM
#4
Dominant Buck
Join Date: Feb 2003
Location: Wisconsin
Posts: 21,193
RE: Scope Lose Zero-after disassembly
When I clean my inline rifle, I take the barrel out of the stock and the scope off the barrel. I have yet to have a rifle go bad for those reasons. Now if I were in doubt of how well the barrel was bedded, I might not do it, but my rifles seem to go back right where I took them out.
10-13-2008, 02:37 PM
#5
Boone & Crockett
Join Date: Apr 2007
Location: River Ridge, LA (Suburb of New Orleans)
Posts: 10,917
RE: Scope Lose Zero-after disassembly
I'm with Cayugad on this one. I can't see how taking the barrel off with the scope mounted on the barrel could have much impact on POI, althoughI would try to make sure I put the same amount of tension on those two barrel mounting screws every time I took it off and put it on.
10-13-2008, 02:42 PM
#6
Nontypical Buck
Join Date: Oct 2006
Location: Tennessee
Posts: 1,607
RE: Scope Lose Zero-after disassembly
ORIGINAL: Semisane
I'm with Cayugad on this one. I can't see how taking the barrel off with the scope mounted on the barrel could have much impact on POI, althoughI would try to make sure I put the same amount of tension on those two barrel mounting screws every time I took it off and put it on.
I'm with Cayugad on this one. I can't see how taking the barrel off with the scope mounted on the barrel could have much impact on POI, althoughI would try to make sure I put the same amount of tension on those two barrel mounting screws every time I took it off and put it on.
10-13-2008, 07:05 PM
#7
Giant Nontypical
Join Date: Nov 2005
Posts: 6,585
RE: Scope Lose Zero-after disassembly
There is a procedure some gunsmiths use that I have used for many years and never had a problem with.
I put the rings on the mounts shoved forward [because that's what recoil will do] after they are on and tight the I put the scope in the rings and fasten it down, when I take it off the gun I clean the mounts when I put it back on the gun I shove it all the way forward before I tighten it down. Lee
I put the rings on the mounts shoved forward [because that's what recoil will do] after they are on and tight the I put the scope in the rings and fasten it down, when I take it off the gun I clean the mounts when I put it back on the gun I shove it all the way forward before I tighten it down. Lee
10-14-2008, 05:38 AM
#8
Nontypical Buck
Join Date: Jan 2008
Location:
Posts: 1,408
RE: Scope Lose Zero-after disassembly
Of my last 4 muzzleloaders, 3 of them could be removed from the stock and return to zero just fine; the 4th could not. The POI would shift as much as 3-4in at 100 yds. That particular gun was floated, pillars installed and bedded. Problem solved and now very accurate.
Chances are you will be ok, especially if you do some of the tricks others describe above, but there is the potential to affect zero if something about the barrel-stock contact changes. I'd at least try it once and shoot it to confirm it is ok before I did it during hunting season.
Chances are you will be ok, especially if you do some of the tricks others describe above, but there is the potential to affect zero if something about the barrel-stock contact changes. I'd at least try it once and shoot it to confirm it is ok before I did it during hunting season.
10-14-2008, 07:37 AM
#9
Nontypical Buck
Join Date: Aug 2006
Location: Rivesville, WV
Posts: 3,192
RE: Scope Lose Zero-after disassembly
IMO the point of impact is always affected when you remove the barreled action from the stock, and then reassemble. However it really depends on the accuracy potential you are getting from your rifle, and the accuracy you deem acceptable. I hope the fellows above accept my apology, but I have to disagree with them on this one.
I always remove my flinter from the stock, however my flinter only has one pin that holds it in the stock, and it is relatively easy to return it to the same position.
I believe when you return a barreled action to a stock that has two stock screws that you must return it to the exact same position in the stock, and you must tighten the screws in the same cadence, and to the same torque. If you do not do this then I do not see how POI could not be affected.
If you plan on beingable to accurately shoot your MZ out to 250 yards then your question is very important. If your goal is 75-100 yards then you should be able to return to a relative POI.
I believe bedding is very important in a MZ. In the Omega's I have noticed that the laminated stock rifles shoot better than the black composite stocks. Personally I believe this is due to the fact that the laminated stock is more rigid. And the rifle actually has a better stock fit. This IMO allows the barreled action to return to the same place every time you reassemble. Just my opinion. But then I am very anal about the accuracy of my MZ. Tom.
I always remove my flinter from the stock, however my flinter only has one pin that holds it in the stock, and it is relatively easy to return it to the same position.
I believe when you return a barreled action to a stock that has two stock screws that you must return it to the exact same position in the stock, and you must tighten the screws in the same cadence, and to the same torque. If you do not do this then I do not see how POI could not be affected.
If you plan on beingable to accurately shoot your MZ out to 250 yards then your question is very important. If your goal is 75-100 yards then you should be able to return to a relative POI.
I believe bedding is very important in a MZ. In the Omega's I have noticed that the laminated stock rifles shoot better than the black composite stocks. Personally I believe this is due to the fact that the laminated stock is more rigid. And the rifle actually has a better stock fit. This IMO allows the barreled action to return to the same place every time you reassemble. Just my opinion. But then I am very anal about the accuracy of my MZ. Tom.
10-14-2008, 08:07 AM
#10
Member
Join Date: Dec 2003
Location:
Posts: 89
RE: Scope Lose Zero-after disassembly
How could the POI move or shift if the scope is attached to the barrel? I could see if the scope was removed and then replaced on the barrel. In theory, you should be able to put the barrel on at any angle and still have it dead on. The bullet only touches the barrel and the scope is attached to the barrel. Why would the stock affect anything? Am I missing something here?