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shim stock beretta 390 12ga.

airraid1999
i have the beretta 390 12 ga. i bought used here on gun broker it fire fine just cant seem to get a good connect with dove hunting its like i am not even close to birds i have heard that shims in stock can through off aim point with that said i shoot left handed and its a right handed gun does any one have any shims to correct this and any info on how also its not me as i go get my other gun s&w 1000 and shoots fine since i bought beretta used no shims came with gun any help?[:)]
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7 comments

Date Votes
  • Maalox
    I have a 391 and an Extrema. Neither one has the proper amount of "drop" for me. On my Extrema, I remove the pad on the stock and then removed the stock. I put in shim for max drop and it has worked much better. You can switch the shim direction and also switch shims to adjust the drop to your liking.

    I would think you can do the same thing on the 390.


    I just did a search and here is a link to the owners manual for the 390. C3 is the drop/cast spacer, so it is adjustable. See page 32 of the manual linked below. If you don't have another spacer you should be able to order one from Beretta.


    www.berettausa.com/file.aspx?DocumentId=46
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  • airraid1999
    when i throw gun up it seems like i am looking down on rib?
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  • Maalox
    quote:Originally posted by airraid1999
    when i throw gun up it seems like i am looking down on rib?


    You need more drop. This is the same problem I had. Put a different spacer in, one which has the top side thicker than the bottom this will increase the drop.

    You may also have a cast issue depending on which shim is in there and how the shim is in there. Some have cast some don't.

    How do you shoot a right handed semi auto left handed without taking hulls to the head?
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  • airraid1999
    will try thx will keep updated thanks again just wondered about left and right as its a right hand gun but i shoot left i havent papered the gun yet so will do that first i did some reserch and there are shims for right and left will be back after i paper gun thanks again
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  • Maalox
    quote:Originally posted by airraid1999
    will try thx will keep updated thanks again just wondered about left and right as its a right hand gun but i shoot left i havent papered the gun yet so will do that first i did some reserch and there are shims for right and left will be back after i paper gun thanks again


    Just read the manual I linked in the other post and it says they come stock with cast "off" for a right handed shooter. So you need to switch the spacer to cast "on" for left handed shooter and also for maximum drop.

    Good luck
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  • airraid1999
    so i would get sx spacer in 55/60 mm?
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  • Maalox
    quote:Originally posted by airraid1999
    so i would get sx spacer in 55/60 mm?


    With the Extrema, the same spacer was sx or dx depending on which way you put it in. I would take yours apart and see what shim is in there. You may just need to flip it over to fix your issues.
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