Weaver grand slam scopes
Does anybody have suggestions or tricks to get a weaver grand slam scope to desired point of impact and stay there.
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Stinkpot;
Use the tried and true method of one shot zeroing, and your problem is solved. Set up at 50 yards, after you have bore sighted your rifle. Make sure you are starting with a clean barrel, a good rest, and if possible, a clear calm day.
Shoot one shot to determine where the barrel is pointing, and then shoot another, just to make sure it hits where it did with the first shot, thereby eliminating "pilot error", and then with the rifle secured, and probably with the help of a friend, hold the cross hairs on your original point of aim, and then move them to your shot placement. That should "zero" your scope to shoot where the barrel shoots. Sometime it is hard to hold everything in place while you are moving the cross hairs, but if you can accomplish it, that is the easiest way to get your scope to shoot where your barrel aims!
Good luck,
BigBarn[:o)]
"Respect the land, and it will respect you"0 -
Dead on bigbarn !!
Hold the bugger with bungy cords while your doing that.
But if there is a problem caused by off center holes or such, the Burris signature rings will allow shimming of about 5"-- 20" @100yds.
It's not a good idea to use a scope that has the windage or elevation run all the way to the end, as it screws stuff up the way you see through it.
Shoot lots and enjoy the experience..
Gun control is hitting what your aiming at.0 -
Bigbarn
All good points.
Following is my standard procedure for getting a gun ready and reliable for the feild.
1: Zero reticals on scope or check it before mounting.
2: Mount bases and rings. Aling rings with wheeler aligning bars and mount scope.
3: Bore sight scope using windage screws. Then shoot a three shot group and make final windage adjustments to within 2"s of Zero.
4: Return to shop and add shims to scope bases for required elevation adjustments (to less than 5"s).
5: When all the above is done, the scope is removed, rings are lapped with a wheeler lapping tool and the gun is ready for final sightin.
Did I miss something in this setup?
Now it's off to the 100 yd range. Shoot three shots, measure from center of group to intended point of impact and make required scope adgustments and shot 3 shot groups untill Zero is achieved(let barrel cool between shot groups.
The complex issues of accuracy now begin. Problems with accuracy can be with the scope mountings,the scope, the gun stock, the gun barrel,the gun action,the bullets used, the powder charge, the powder type and then there are "range conditions",ect ect ect.
My real question was "does anybody know of any tricks about getting a weaver grand slam scope sighted in and to hold where you left it". I have found it to be a loosing battle.0 -
that is due to incorrect ways of fighting the problem! First,..you will need a hex key set. Use that to remove the scope,..then place the scope in a box,...address it to weaver, then pay the guy in the blue/brown uniform to place an expensive label on it,..and wait for it's return.
I see in other posts that you have some that perform great but yet you are making a lot of unnecessary adjustments to this one trying to maintain POI. If it doesn't hold,..and the mounts and rings are true and tight, and the stock is torqued correctly with the recoil lug firmly seated, and the barrel doesn't have contact issues, then you simply have a warranty issue. Send it back,..get it fixed. No use in wasting ammo.
why chase the game when the bullet can get em from here?....
Got Balistics?0 -
Justc
Thanks for the advise but listen to this.
I have returned 7 grand slam scopes to the fix it shop.
Records of the scopes:
1: one 4.5-14*40 recoil failur(fixed/repaired).
2: one 4.5-14*40 paralax adjustment (fixed/ repaired).
3: one 4.5-14*40 with in factory specifications(returned)
4: one 4.5-14*40 within factory specifications(returned)
5: one 6-20*40 within factory specifications(returned)
6: one 6-20*40 replaced(no reason given)
7: one 4.5-14*40 bent cross hair (fixed/repaired)
Four out of seven scopes repaired or replaced. That is a 45% defect rate and the ones returned still have problems holding Zero from session to session.
My brother had six of these scopes, all of which went to the repair shop with the same results. He just took his to a hock shop a week ago and was pleased to get rid of them for $90 each.0 -
if you have managed to eat 45% of the grandslams you have purchased,..I'd say your rifle is too hard on them. If that doesn't defy the laws of coincidence, I can't say what else it is. If you use muzzle breaks or heavy safari calibers I could understand it,..but so many of the LR guys I talk to say they hold up great. You didn't happen to buy all of them at once within a certain serial number range did you?
why chase the game when the bullet can get em from here?....
Got Balistics?0 -
justc
That was the same question I ask to start with of the weaver repair shop "is it possible that a bad batch or run could explain the problem"?. But these numbers don't mean much to me M003985, N005244, M010536, N003211, M006995, M009336, N001098. Do these sn's mean anything to you?
Each of these scopes was retested on a 22-250 ackley custom rifle that shoots <1/2" groups(a one hole shooter without me behind the trigger) at 100 yds. The guns these scopes were on were 220 swift, 250 ackley imp, 6mm remington, 244 remington, 25-06 remington, and a 257 roberts. They have all been professionally glass bedded.0 -
I don't know much about serial numbers but if you have that many gone up,..I'd make Weaver well aware of it via calls to the higher-ups. I would send them all in one box as well,..if they did go bad,..weaver won't want you telling folks about it. I must admit it does sound like a bad part somewhere,..which could have been placed in any number of scopes until they ran out of those parts. Subcontracted maybe? You never know, but I'd be awful hard on them when I called,..no way those little calibers should hurt a good scope.
why chase the game when the bullet can get em from here?....
Got Balistics?0 -
Per JustC:
that is due to incorrect ways of fighting the problem! First,..you will need a hex key set. Use that to remove the scope,..then place the scope in a box,...address it to weaver, then pay the guy in the blue/brown uniform to place an expensive label on it,...and wait for its return.
throw away if returned but not replaced. Buy a Burris, Nikon, Leupold, Pentax...
"They're in front of us, they're behind us, they're to our left and to our right...they can't get away now."
Chesty Puller, Chosin Reservoir, Korea
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