Question on short chambered AR barrels

[RASelkirk]

Thanks for the information. The reason I wondered about the cost is I could buy an other barrel, with a correct chamber for less than having it done. I tries 3 different bolts and had the same result-no lock up. Thanks again.

Tried different ammo? The bolt on my new RRA 5.56 carbine would not close on PPU ammo, tried some Sadu and it was fine. The PPU (all 1000 rounds!) had a slight bulge where pressing the bullet deformed the case mouth on assembly...

Russ

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