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This Guy
12-05-06, 00:22
I just bought a used 870, and the barrel says for 2 3/4" shells. Can I put a 3" magnum barrel on it, or does the receiver have to be stronger?

Robb Jensen
12-05-06, 06:15
I just bought a used 870, and the barrel says for 2 3/4" shells. Can I put a 3" magnum barrel on it, or does the receiver have to be stronger?

IIRC the ejector in the receiver needed to be changed or modified in some way.

This Guy
12-05-06, 18:11
Thanks, I'll look into that.

THOLL223
01-04-07, 11:27
By accident I figured out that not only can you chamber a 3" shell with a barrel marked for 2 3/4" but you can fire it. Issue becomes when you want to eject the shell. The opening in the receiver is not big enough to fit a fired shell. I had to take the barrel off to get the empty shell out.

You can send old 2 3/4" Wingmasters to Wilson Tactical (http://www.wilsoncombat.com/index_sgt.htm) & for $45 they will convert it to chamber 3". IIRC just involves making the shell opening larger in the receiver.