Thank you 57K. You're information is always detailed and insightful. I started this post due to my ignorance
So it's good to get some definitive information. I'm taking my 45 and the BB 185+P's to the range in the next few days - chronograph in tow.
Sometimes with +P ammo, the manufacturer recommends only using in "modern firearms." I think my real concern is if BB considered my vintage 1984 Colt 1911 to be a "modern firearm."
Also 57K, I want to apologize if I came off abrupt in the other post. I think I over-dwelled on relatively insignificant point. Given your knowledge base, I look forward to seeing more of your insights in the future. Thanks again.