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Gunsmithing FN model 70 short mag box

yavapai kid

Sergeant
Full Member
Minuteman
Apr 28, 2004
214
1
Arizona
I have a FN 70 short mag box .473 bolt face that allows me to seat bullets out to 2.850.

Can the magazine box be lengthened to seat bullets to 3.00?

I notice a strip of metal inside the box that will not allow the cartridge to be seated any further.

Can that be taken out and allow the magazine to function properly?