Load data for .38/200 and .455-warmth .45 ACP?

[CountryGent]

So, been shooting a Webley Mk Ⅳ in .38/200 and another Mk Ⅳ in .45 ACP / Autorim. With the former, I've stuck with factory .38 S&W and Steinel's .38/200 loads, with the second type shooting better. With the latter, Steinels .45/.455 for "shaved cylinders". (I won't be putting full .45 ACP loads in that one, ever. But lighter loads I create, sure.)

I've come to the conclusion the revolver reloading setup is going to be a post-move thing. But it doesn't hurt to gather and study the data now. If one was looking to, roughly, duplicate British loads what resources, books, et al. would you recommend?

Thanks!

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[PommyB]

My standard load for .455 Webley is the 260gn Roundnose Hollow-base bullet from Bear Creek Supply over 4.5gns of Unique. I've used this load in both .455 Mk.II cases & .45 Auto Rim with equal success.

 

[CountryGent]

In the off-chance it is of interest, Handloader, June—July 2024 edition has data for .455 Webley and shaved to .45 ACP loads. Cheers.