Comparison wanted, M1917 Revolvers

[browningautorifle]

converted some lead bullets to hollow base.

So...they were undersize then? The hollow base was meant to make them "Bump up" when firing to obturate.

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[RCS]

Yes, the modern 45 Colt bullet is .452 while the original bullet was .454 and the S&W was chambered for .455 Mark II

The hollow base lead bullets work best even if .452 diameter

I try try some old .454 lead bullets but the hollow base still is better