Similarly, I'd been under the impression (due to reading something somewhere at some point from someone I must have trusted because it stuck with me) that in 9mm the 147s were a little better around intermediate barriers than lighter weights. I put that here not as a fact but as a question -- is that a true statement? Has there been testing? Is it really just theoretical as TGS said, and not really a documented, discernible difference?
I like the way the 147gr gold dots shoot in my P30, but I've not shot enough to consider that from a statistical view, just subjective judgement. I'd like to shoot them a bit more often, but when I do, I'll need to buy more of the good stuff...