The .450 rounds sit about the same. I should have used two magazines for a side by side comparison. Wort case it appears a slight mod front and rear should work.
Thank you. I missed that as I thought it was a mock up for pictures and I should have been more clear as in has anyone used the three round Ruger mag from the .450? The rounds fit. My guess is make a similar Dremel cut as with the Lancer mags. I look forward to your findings with the AICS mags.