Originally Posted by MontanaMarine
Recently had a Wyatt's extended magazine box installed in one of my 308s. My goal was to be able to magazine load rounds with the 208 AMax loaded long.

The magazine box has internal length of 2.99". I discovered it will also hold two rounds down even loaded at 3.08", and feed fine.

Here are a few more pics.

308 rounds loaded with 208 AMax. OAL 2.81", 2.98", and 3.08". Quickload says useable case volume is 44.7gr, 47.9gr, and 49.7gr, respectively. That's over a 10% increase in useable volume at 3.08".

[Linked Image]



QL indicates an increase of 50 fps from 2550 to 2600 using RL17 and moly 208's, less with naked 208's, are these the results you found?

Dave