A while back I standardized on .45ACP -- then tried a .40SW (G-22) and didn't much like it, so I put a 9mm slide on it (G-17). 9mm is what shoot most now (G17 and G19), easy to get and cheaper than either .45 or .40SW. My Colt Gov't still gets range time, but it's not nearly as pleasant to shoot as either of the 9mm.
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Better is the Enemy of Good Enough.
Okay, what’s your point??