Comparison wanted, M1917 Revolvers

[RCS]

I bought this S&W Model 1915 in 455 cal some years ago, bore was very good . I enjoyed
shooting the 455 cartridge but got expensive and unable to reload. Along the way, I found an old FDL rear sight which is easy to install. Also decided to have the cylinder rechambered to the 45 Colt cartridge.
I started using some factory 45 Colt and accuracy was not good, tried black powder reloads and reduced smokeless, still not accurate.
then cut down some 45 Colt cases to the same length as 45 ACP and converted some lead bullets to hollow base. This proved to be the answer.
Also found out later the Cowboy Action Shooter also use a "short" 45 Colt cartridge too

Information

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[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.

[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

[rcathey]

Along the way, I found an old FDL rear sight which is easy to install.

They still make these! I have one for my 1917 when I get a wild-hair to put it into "civilian clothes" along with a set of Fitz target grips.

I bought mine through eBay: Adjustable Revolver Sight - Original Wondersight for SW | eBay

If you ask me, this is a great little rear sight for an incredible price. No affiliation -- I just really appreciate something old school like this still being produced and still feeling old school.

It could easily be made with a bunch of plastic and cost $15. I'll take the steel for $50 more any day of the week.

[RCS]

Also forgot to mention that the old mainspring in the S&W revolvers should be replaced by a modern S&W "N" frame
mainspring, it will also improve the trigger pull and last forever