Slug gun trouble - The HuntingPA.com Outdoor Community
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post #1 of 18 (permalink) Old 11-23-2017, 03:16 PM Thread Starter
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Slug gun trouble

Any ideas?
I am at a loss. Went to the range this morning with my daughter and her boyfriend. Breezed thru the first 4 guns with all shooting well. Saved my new slug gun for last. Had a scope added and bore sighted last night. First shot was 1 inch off at 100yds thru a lead sled. Waited. 2nd and 3rd shot missed 2x2 target. Bigger target added. Saw where it hit and adjusted. Bullseye. Waited 15min and shot. Missed target. Moved to 25yds. Hit 6inches low. Made adjustment. Just 2 inches right. No adjustment made. Then Missed target. All shots from a lead sled. I can tell when I throw a shot. I did not. Everything brand new. Debating if I take gun back tomorrow or first change up slugs to see if that makes a difference. It's a Winchester slug gun with Hornsby sst slugs.
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post #2 of 18 (permalink) Old 11-23-2017, 03:30 PM
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Scope is not tight in the rings or the mounts are loose.
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post #3 of 18 (permalink) Old 11-23-2017, 03:41 PM
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Quote:
Originally Posted by Grouse28 View Post
Scope is not tight in the rings or the mounts are loose.
^ That is certainly the first thing to check ^

However, I had a 12 ga. Rem 870 pump cantilever full rifled barrel for awhile and that dang thing threw most brands of slugs all over the place. Only thing I ever found that it shot consistently was Lightfield Lite's. Traded it at Cabelas on a Savage 220, which is a tack driver.
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post #4 of 18 (permalink) Old 11-23-2017, 08:25 PM
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Try some different slugs before you take it back.....
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post #5 of 18 (permalink) Old 11-23-2017, 08:29 PM
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As above.

Check the scope mounts and all screws. If everything is tight try a couple other types of slugs.
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post #6 of 18 (permalink) Old 11-23-2017, 08:42 PM
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The scope is moving.
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post #7 of 18 (permalink) Old 11-23-2017, 08:46 PM
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Sounds like a scope/mount problem to me if you're getting such terrible results.
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post #8 of 18 (permalink) Old 11-23-2017, 08:52 PM
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Does the gun have open sights? If so how does it group at 20yds.
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post #9 of 18 (permalink) Old 11-23-2017, 08:59 PM
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Shoot that at 20 yards, a full box. Move it to 50 then a hundred..


Sounds like you need to check the mounts and tighten them up. If that does not do it, look to the ammo and repeat...

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post #10 of 18 (permalink) Old 11-23-2017, 08:59 PM
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Make sure the barrel nut is VERY, VERY, VERY tight, so there is no play between the receiver and barrel. I have seen situations where the nut that holds the barrel on was not tight enough and allowed slight movement of the barrel. On a scope mount that attaches to the receiver this will cause a extreme change in point of impact. It can also be the cause of poor accuracy from cantilever mounts, but should not be as extreme as the op described. If I remember correctly there was a gunsmith making custom pump slug guns and welding the barrel/action together to eliminate the barrel to receiver movement.

Is the scope mounted to the barrel (cantilever mount) or mounted directly to the action?

Good luck, Tony
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