Hello. I've loaded a ton of 225/230 gr CRN .45 ACP loads using exactly 5.0 gr BE with no pressure signs and no problems...ever.
I'm not advising to go beyond published data.
Different guns have different "maximums" and the publishers of reloading manuals have to take all pistols that might fire a load into account.
That loads gives right at 800 ft/sec from my 5" Kimber.
Perhaps start off with 4.5 or 4.6 gr and work up until you get what you want.
Best.
PS: As you know, there's a difference between hard cast and swaged pistol bullets with the former being much harder. In some cases, Speer has stated that loads with their swaged bullets are on the low side to prevent leading.
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