Mike, I agree with everything that you said. I seldom change things that were right in the first place unless absolutely necessary.
I am sorry that I didn't take a better look at the bases. I didn't realize that both of them were drilled and tapped.
If I have it right, these are the aftermarket bases that are reversed and the scope is removed by taking out the bolt and tilting the scope to the rear. The release is on the front base.
So the first thing to check is that the holes are true.
If the holes are the issue, this is fixable (by the machinist who installed them) by tapping to a larger hole if necessary. I have installed a number of those mounts and the holes should easily clean up to 8-40. The larger tap will let you move the hole, and the base in the direction that you need to.
The easiest install is with a https://www.forsterproducts.com/prod...nting-fixture/ that aligns every hole that you drill with the flat on the bottom of the action. It also centers the holes to the bore if the action is true in the first place.
If the holes are correct and the bases are off, I agree with Mike and Diz's thoughts on removing metal to tilt the base into alignment. It appears that the rear base is lower than the front so removing metal from the front base should lower it enough to lock into place.
If the bases are crooked left and right, scraping or filing on one side or the other will tilt it into position
If the bases are correct, then the barrel can be turned a few degrees to solve the sight problem because that would mean that the rear sight was incorrect from the factory.
I have an Argentine sporter that I did this exact job with. I decided not to grind the charger bridge and used a large mill to remove metal from the rear base until it didn't hang up on the charger bridge. I contoured the rest with a Dremel cut off disk.
I can post pix if necessary.
Tom
I am sorry that I didn't take a better look at the bases. I didn't realize that both of them were drilled and tapped.
If I have it right, these are the aftermarket bases that are reversed and the scope is removed by taking out the bolt and tilting the scope to the rear. The release is on the front base.
So the first thing to check is that the holes are true.
If the holes are the issue, this is fixable (by the machinist who installed them) by tapping to a larger hole if necessary. I have installed a number of those mounts and the holes should easily clean up to 8-40. The larger tap will let you move the hole, and the base in the direction that you need to.
The easiest install is with a https://www.forsterproducts.com/prod...nting-fixture/ that aligns every hole that you drill with the flat on the bottom of the action. It also centers the holes to the bore if the action is true in the first place.
If the holes are correct and the bases are off, I agree with Mike and Diz's thoughts on removing metal to tilt the base into alignment. It appears that the rear base is lower than the front so removing metal from the front base should lower it enough to lock into place.
If the bases are crooked left and right, scraping or filing on one side or the other will tilt it into position
If the bases are correct, then the barrel can be turned a few degrees to solve the sight problem because that would mean that the rear sight was incorrect from the factory.
I have an Argentine sporter that I did this exact job with. I decided not to grind the charger bridge and used a large mill to remove metal from the rear base until it didn't hang up on the charger bridge. I contoured the rest with a Dremel cut off disk.
I can post pix if necessary.
Tom
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