Sean...
The only "foot pounds" that ever concerned me were the ones I felt walking a beat.... and I'll have to admit that I don't lend much credence to paper energy figures. All I've ever done is knock a great big hole all the way through whatever organism that was unfortunate enough to scare me, annoy me, or look like something that might go well with taters, onions and carrots. None of them were around to file an "insufficient foot pounds" complaint when it was over, so I guess that big 'ol bullet must have done allright.
Why on earth anybody would want to water down a perfectly good .45 with a little 165 grain bullet is beyond me, too. I was thinking more in terms of a 240-260 grain SWC, at enough velocity to bore all the way through. 165 grains sounds just about right for a good warm .38 special, though.
I never said the 10's didn't have any utility. In fact, I found an excellent use for them right after they first came out. All the puppy policemen were selling their plasma and kids to get them, and then they'd show up at the station to show me (their range officer) their super-tactimo new high-velocity manzapper. I'd "ooh" and "ahh" some, and them ask to see one of the new magic bullets. Then I'd clear my old 1945 Ithaca and lock it open, with the muzzle skyward. Next I would drop a 10mm round, case and all, down the muzzle- nose first; and watch it drop out the magazine well and onto the carpet. It sure was entertaining to watch their expressions when I'd say "Interesting- but I believe I'll keep my old .45"
So, the 10's are really good for ONE thing- keepin' the cobwebs knocked out of the barrel of a REAL gun
Take care, Amigo. Enjoy your Delta. (It really IS a good gun.)