Can’t figure out which Aics mag?

[sanpedroranch]

I googled and down but came up empty. I have a 7stw and I’m not positive if the 338 LM mag is too big. None of my AI 300 WM mags work. The ridge inside the mag right below the neck-shoulder junction is. Keeps hitting the case body. Any suggestions?

 

[ArTeeKay]

I googled and down but came up empty. I have a 7stw and I’m not positive if the 338 LM mag is too big. None of my AI 300 WM mags work. The ridge inside the mag right below the neck-shoulder junction is. Keeps hitting the case body. Any suggestions?

You'll need a RUM style mag to accommodate that long case body. XLR sells one, the question is whether your mag well accepts the CIP length magazines.