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Thread: Bassett Mount and Scope Trial

  1. #1
    Fire Team Leader NMC_EXP's Avatar
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    Bassett Mount and Scope Trial

    I finally decided to scope one of the M1A's. Bought a Bassett mount and Burris Signature rings. With this hardware mounted a vintage Weaver T-10 scope on the wife's rifle. Logical choice since she does not shoot with irons anymore.

    Set both the scope adjustments to center of their range and fired a shot at 25 yd. Missed the paper....uh-oh. Moved the target back to 12.5 yd (1/8" = 1 MOA). Took another shot and POI was 50 MOA right and 35 MOA high from POA.

    These Burris Signature rings are an experiment for me. They use pairs of polymer inserts between the rings and scope tube. These inserts come with zero offset and with different amounts of offset such that the scope can be angled inside the rings. This test was with the zero offset inserts. Now I need to: (1) Do some math and see how much windage and elevation I can build into the rings with the inserts, and (2) Determine how much adjustment the T-10 scope has.

    NOTE: I'm not complaining about the Bassett mount. I realize that the alignment of this mount depends on the external dimensions of the receiver which in this case is a SAInc in the 060xxx range.....in other words, a crapshoot.

    Request: If anyone has a copy of or knows where to get the owners manual for the Weaver T-10 scope I'd appreciate a heads-up. Been looking around the web but no luck.

    Thanks
    “After all is said and done, successful rifle shooting on the range is nothing more than first finding a rifle and lot of ammunition which will do precisely the same thing shot after shot, and then developing the same skill in the rifleman.” ~ Capt. E. C. Crossman (The Book of the Springfield)

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  3. #2
    Moderator 4570govt's Avatar
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    Re: Bassett Mount and Scope Trial

    I have a Weaver T-10, made in the 1970's, but I do not have an instruction manual for it. Mine is on a heavy barreled Mauser 30-06, nice combination.

    With the Bassett mounts, I just use plain one inch or 30mm rings, never a problem with zeroing.

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    Administrator Tarheel Trooper's Avatar
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    Re: Bassett Mount and Scope Trial

    I am a fan of the Bassett Pictinney M14 mount and I only use 30 mm rings, as I prefer 30 mm scopes.

    As far as your clicks I'd count them the old fashioned way....

    Carefully bottom the turrets and count each click to the top end. Then count 1/2 way back....

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    Moderator nf1e's Avatar
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    Re: Bassett Mount and Scope Trial

    Just noticed your location. Last time there was April 18. Love the range.
    Even with SAI receiver, you should be able to make a Basset work without anything special.

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  9. #5
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    Re: Bassett Mount and Scope Trial

    My second M1A gave me a problem. Wasn't related to the Basset mount at all but the set of rings. This same setup worked fine and adjusted quickly on rifle #1, but like you, mine would not hit paper at 50 yards no matter how I adjusted the scope or removed/reinstalled the mount.
    Got a bore sight laser and tried to align that way....nothing. Ended up comparing the components on both my rifles. Everything looked fine. Someone on this site suggested I change rings, which I did...problem solved.
    Something was a bit off with one the new rings.

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  11. #6
    Fire Team Leader NMC_EXP's Avatar
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    Re: Bassett Mount and Scope Trial

    Thanks to all for the feedback. With one exception attributed to rings it was all positive as to alignment. I'd read about potential problems due to receiver dimensions on other sources, maybe the Bassett website.

    After these positive reports I'm rethinking the plan. I ought to leave the zero offset ring inserts in place then: (1) Reinstall the mount on Mary's rifle and try it again. Possible it was not seated in the receiver grooves correctly. (2) Install and test fire on my #2 rifle which is an 033xxx SAInc. (3) If line of bore to line of aim is still way off then install offset ring inserts and/or change rings.

    Ought to mention this is the Picatinney rail type mount.

    - - - Updated - - -

    Quote Originally Posted by nf1e View Post
    Just noticed your location. Last time there was April 18. Love the range.
    Even with SAI receiver, you should be able to make a Basset work without anything special.
    If you visit Whittington again and want to link up, give me a shout. It's 12 miles from my place. The mountain that forms the impact area for most of the ranges is a prominent visual feature from my front porch.
    “After all is said and done, successful rifle shooting on the range is nothing more than first finding a rifle and lot of ammunition which will do precisely the same thing shot after shot, and then developing the same skill in the rifleman.” ~ Capt. E. C. Crossman (The Book of the Springfield)

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  13. #7
    Moderator nf1e's Avatar
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    Re: Bassett Mount and Scope Trial

    Quote Originally Posted by NMC_EXP View Post
    Thanks to all for the feedback. With one exception attributed to rings it was all positive as to alignment. I'd read about potential problems due to receiver dimensions on other sources, maybe the Bassett website.

    After these positive reports I'm rethinking the plan. I ought to leave the zero offset ring inserts in place then: (1) Reinstall the mount on Mary's rifle and try it again. Possible it was not seated in the receiver grooves correctly. (2) Install and test fire on my #2 rifle which is an 033xxx SAInc. (3) If line of bore to line of aim is still way off then install offset ring inserts and/or change rings.

    Ought to mention this is the Picatinney rail type mount.

    - - - Updated - - -



    If you visit Whittington again and want to link up, give me a shout. It's 12 miles from my place. The mountain that forms the impact area for most of the ranges is a prominent visual feature from my front porch.
    May just do that. Don't think we are scheduled there this Spring, but probably next. My daughter and her husband live outside Taos. Whittington makes a great day trip from there.

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    Fire Team Leader NMC_EXP's Avatar
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    Re: Bassett Mount and Scope Trial

    Art

    That is a scenic drive from Taos to the Raton area. The town of Cimarron is along that route and it has a lot of interesting history. True "wild west" stuff. If you're not familiar with it, the St James Hotel in Cimarron opened in 1872 and is still in operation. Lamberts restaurant is in the hotel. We have found it to be an excellent place to eat.

    http://www.exstjames.com/

    I'd be pleased to meet you if scheduling allows.

    Jim
    “After all is said and done, successful rifle shooting on the range is nothing more than first finding a rifle and lot of ammunition which will do precisely the same thing shot after shot, and then developing the same skill in the rifleman.” ~ Capt. E. C. Crossman (The Book of the Springfield)

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    Moderator nf1e's Avatar
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    Re: Bassett Mount and Scope Trial

    One of my Bassets on my GWLA home rolled.


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