Gunsmithing Internal mags

Outsydlooknin75

Gunny Sergeant
Full Member
Minuteman
May 11, 2009
1,666
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DulUth Jawja
Has anyone taken and opened up the length of the internal mag on a rem bdl? Id like to be able to put a DBM on my rifle but I simply cant do it at the moment, but what I was thinking is that I would find a box for my rifle then kinda lengthen it so I wouldnt be stuck with the factory length. But I also look at it this way, I am loading to 2.825, and I looked at the Wyatt system which allows a length of 2.880. is .055 woth the effort or keep saving pennies for a DBM system.

What is the length allowed by other systems anyone know off the top of their head?