Re: 338 RUM in an AICS 338 Lapua Magazine
Im also running the 338 RUM in AICS mags (McRees). With a little elbow grease & a good lot of patience, I was able to cut the dimples out with my dremel tool. Use the appropriate drill bit on either end of the dimple & punch a hole. I then layed out the lines I needed to cut with masking tape. Go slow & don't remove a whole lot of material with your first pass, you just need to make a cutting "guide" if you will. The thin cutting disks make short work of the thin metal of the AICS mags. Then slide one side of the cutting disk on the inside & remove the burs. Work like a dream.
PS- I only had to remove ONE of the dimples in my mag, I've fed over 300 rounds through the mag now with ZERO failures as the top cartridge is uneffected. I figure you still get a window but it minimized the area that can be exposed to all the shit floating around.
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