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Shotgun patterning left

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Shotgun patterning left

Postby ShortMountain91 » Sun Dec 22, 2019 9:07 am

So I patterned my A5 for the first time the other day and noticed all my patterns are left. I used a rest and made sure my mid bead and front bead were aligned to take out any potential mounting issues. I didn't think this would change anything but just to ease my mind I put in my shim to increase the cast off but again made sure my beads were aligned and got the same result, still left. Do y'all think the barrel could be bent? I used 2 different chokes and one was the factory choke so I don't think it's a choke issue. Thanks in advance for any help!ImageImageImageImage

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Re: Shotgun patterning left

Postby tnanh » Sun Dec 22, 2019 11:50 am

Try a different ammo. Some have different points of impact especially Longboard and the Federal with flight control wad. I wouldn't like that POI either but it isn't terrible . Also, the forearm nut can change POI on some shotguns.
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Re: Shotgun patterning left

Postby ShortMountain91 » Sun Dec 22, 2019 12:01 pm

tnanh wrote:Try a different ammo. Some have different points of impact especially Longboard and the Federal with flight control wad. I wouldn't like that POI either but it isn't terrible . Also, the forearm nut can change POI on some shotguns.
The pictures shown are with 3 different types of ammo. I had the same thought too at first

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Re: Shotgun patterning left

Postby tnanh » Sun Dec 22, 2019 10:17 pm

Check the forearm nut too. Get it as tight as you can without over tightening it. May help. May not but has affected a couple of 870s I have.
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Re: Shotgun patterning left

Postby ShortMountain91 » Mon Dec 23, 2019 7:34 am

tnanh wrote:Check the forearm nut too. Get it as tight as you can without over tightening it. May help. May not but has affected a couple of 870s I have.
I'll try that. Thanks

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Re: Shotgun patterning le

Postby Boll Weevil » Wed Jan 08, 2020 9:03 pm

1) Reseat the choke. That tiny lip where barrel and choke threads meet might be grabbing the wad.
2) Consider polishing the bore. Super super super fine steel wool with ample oil as a lubricant...especially in the area of the forcing cone. An old arrow or dowel rod seated in the drill chuck wrapped with the wool...slow, steady. Just super slow ease the machining mill marks out of the forcing cone...they can pull a hull this way or that and throw any and every shell/pattern every time. I've seen a super slick bore turn a couple guns into outright turkey killers when they started out barely borderline.
Leave it better than you found it.
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Re: Shotgun patterning left

Postby TiminTN » Tue Jan 28, 2020 12:16 pm

Thank goodness you noticed this before hitting the woods!! My suggestion, as I have been down this road, is to put adjustable sights on it, or drill and tap for a scope. Nothing will help move the pattern, I`m sorry to say, except the adjustment slots on a low powered optic.
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Re: Shotgun patterning left

Postby fairchaser » Tue Jan 28, 2020 1:36 pm

I have the same issue with my mossberg 835. I fixed the problem with a red dot scope. I don’t know if it is the gun or me. I shoot a right handed gun, left handed and that may be the issue. Even when I see the red dot on the target, the barrel and bead aren’t lined up but I can make everything line up by moving my head. This tells me that the way I mount the gun naturally does not allow for everything to line up. The red dot doesn’t require a certain cheek weld to happen so it will fix the problem. Even though you think you are looking straight down the barrel, you probably aren’t. At least I wasn’t.
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Re: Shotgun patterning left

Postby Uncle Jesse » Fri Jan 31, 2020 2:01 pm

I'm pretty sure Browning guns ship with neutral cast on the stock. You need the cast spacer for a right hand shooter. Can't remember if that's cast on or cast off

Edit
Just noticed you tried that already
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