just did some research and it looks like DSA mags aren't the way to go. they require some work to get to feed right.
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you need to round off the circled edges and smooth out the rest of the edges to remove any burs and ensure they are straight. supposedly the DSA 30 rounders are much better than the 20.
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you need to round off the circled edges and smooth out the rest of the edges to remove any burs and ensure they are straight. supposedly the DSA 30 rounders are much better than the 20.