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Old December 6, 2018, 07:32 PM   #12
44 AMP
Join Date: March 11, 2006
Location: Upper US
Posts: 21,693
Don't push them too fast , designed for 45 Colt and 45 Auto Rim, not 45 acp SWC's usually have trouble feeding in 45 acp....unless shot in a revolver.
You can call Speer to be sure, but I don't think those bullets were designed for anything but .45ACP. They've been making them for that, for generations. SWC profile, with the "melted" (rounded edges) just for feeding in semi autos.

Swaged lead (so pretty soft, but not pure lead soft), they are coated at the factory with a dry film lube. No other lube is (normally) needed,

The knurled "groove" is a crimp groove, put there for those who are using a roll crimp, or you can simply seat them deep and crimp over the forward shoulder of the bullet.

If you have the original box, it has the stock # on it, call Speer, they can tell you everything you want to know about that bullet and its use in semis and revolvers.
All else being equal (and it almost never is) bigger bullets tend to work better.
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