I recently inherited a Mauser98 action that has been drilled and tapped for a scope. However, whomever drilled the action did not get the alignment correct - I suppose they probably drilled freehand instead of using a jig!! Does anybody have a solution to help correct this problem ?
mauser98 scope misalignment
- Thread starter model citizen
- Start date
What sort of bases was the action drilled for? Are any of the holes usable? Could bases or a bridge mount of a different make be fitted? Holes can be neatly plugged, but drilling a new hole that overlaps a plugged incorrect hole may not work out too well. The partial plug might not hold. If the holes aren't too badly misaligned, Burris signature rings with eccentric bushings could get a scope lined up. If it comes to it, the bad holes could be cosmetically plugged, and a sidemount fitted. If holes are only slightly out, they can be trued up laterally, enlarged, and tapped 8-40.
gunrunner100
CGN Ultra frequent flyer
- Location
- NW Ontario
You don't mention if the existing mount is a side mount or if it is a top mount.
Pics and more info would help. There are alot of suggestions so far and with more information, you can have that rifle back up and shooting straight.
Pics and more info would help. There are alot of suggestions so far and with more information, you can have that rifle back up and shooting straight.
mauser 98 scope misalignment
First of all, thanx for the suggestions! I am sorry I didn't get back sooner as the old Doll put me to work and I couldn't get any computer time! To answer some of your questions : 1. The holes are usable. The problem is a slight mis alignment of approx. 1/16" between the front 2 holes and the 1 rear hole. It is enough that, when a scope is mounted and viewed from the top, the scope angles at the front left of the centreline(eyepiece right of centreline). This I suppose is not a huge problem, but it is very noticeable when you know it is there! 2. I have a bridge top mount that has 2 anchor screws at the front and one at the rear. I am not sure of the manufacturer. 3. The current hole in the rear of the action appears to be corrected once already-previous hole plugged with a screw. So as you might imagine, I don't think I can get away with drilling any more holes in the action! As it stands right now, I have mounted a scope with millet rings and I am going to the range tomorow to see what I can do. If I can get reasonable groups at short ranges, then I definitely will want to investigate this further. As for pictures, you are going to have to be patient with me, til I can get this photobucket thing sorted out. I will respond to this post tomorrow evening to let you know what happened at the range. Once again, thanx folks!
First of all, thanx for the suggestions! I am sorry I didn't get back sooner as the old Doll put me to work and I couldn't get any computer time! To answer some of your questions : 1. The holes are usable. The problem is a slight mis alignment of approx. 1/16" between the front 2 holes and the 1 rear hole. It is enough that, when a scope is mounted and viewed from the top, the scope angles at the front left of the centreline(eyepiece right of centreline). This I suppose is not a huge problem, but it is very noticeable when you know it is there! 2. I have a bridge top mount that has 2 anchor screws at the front and one at the rear. I am not sure of the manufacturer. 3. The current hole in the rear of the action appears to be corrected once already-previous hole plugged with a screw. So as you might imagine, I don't think I can get away with drilling any more holes in the action! As it stands right now, I have mounted a scope with millet rings and I am going to the range tomorow to see what I can do. If I can get reasonable groups at short ranges, then I definitely will want to investigate this further. As for pictures, you are going to have to be patient with me, til I can get this photobucket thing sorted out. I will respond to this post tomorrow evening to let you know what happened at the range. Once again, thanx folks!
Weld up the holes and redrill. - dan
Mauser scope misalignment
I boresighted this rifle with a bushnell boresighter and took the rifle to the range today. I shot at a range of 25 meters at a 50 metre pistol target. The first two shots were in the 8 ring at about 10:30, I adjusted the scope and got the next three shots within the 9 ring between 10 and 11:30. I adjusted the scope again and got the next three within an inch of each other in the 10 ring. I realize that this is small bananas in the grand scheme of things, but I think it shows that if I can tidy up the alignment problem, and with practice, I might be able to extend the performance of both me and the gun out to a couple of hundred yards. In the meantime, I have been given some potentially good ideas over the last few days, I think I should think this through a bit more before I decide where to go from here. Thanx again Folks !!
I boresighted this rifle with a bushnell boresighter and took the rifle to the range today. I shot at a range of 25 meters at a 50 metre pistol target. The first two shots were in the 8 ring at about 10:30, I adjusted the scope and got the next three shots within the 9 ring between 10 and 11:30. I adjusted the scope again and got the next three within an inch of each other in the 10 ring. I realize that this is small bananas in the grand scheme of things, but I think it shows that if I can tidy up the alignment problem, and with practice, I might be able to extend the performance of both me and the gun out to a couple of hundred yards. In the meantime, I have been given some potentially good ideas over the last few days, I think I should think this through a bit more before I decide where to go from here. Thanx again Folks !!
I'd Slot the mount at the front hole, adjust to get the proper alignment then metal epoxy, or solder the gap between the new screw placement and the original messed up hole.
They are not making these receivers anymore so I wouldn't mess with it.
Then again I'm not a Gunsmith.
They are not making these receivers anymore so I wouldn't mess with it.
Then again I'm not a Gunsmith.
If you can get the scope lined-up at 50 yards, the zero at 500 yards woun't be uch different (left-to-right, there'll be a huge difference with the elevation!) Unless it's really cosmeticly upsetting, I'd shoot it as-is.
If you do want to try to fix it, I'm with Calum, and I'd recommend Devcon Liquid Steel.
That way after you've finished fooling around with the scope mount, you can bed the action
If you do want to try to fix it, I'm with Calum, and I'd recommend Devcon Liquid Steel.
That way after you've finished fooling around with the scope mount, you can bed the action
- Location
- Somewhere on the Hudson Bay Coast
Splatter said:
I had a M-17 Enfield with the same problem. I centered the adjustments on the scope, then I cut a slot in the rear hole of the Weaver base. Next step was to mount the scope, then using a bore-sighter, I moved the base until it was in line. To hold everything in place I epoxied the slot closed. Nothing ever moved, despite having only 2 screws securing the base, and that rifle saw some pretty hard use.
