Is there a missing nitch in full power 10mm ammo?

[Olgo]

I can understand that. The higher velocity caused the XTP to mushroom faster thus more energy dump.

[Bimmer]

I was thinking it would be nice if there were a woods load that would expand just a little at full power velocity (maybe to .45) and then penetrate around 25in in ballistics gel.

If you don't really want any expansion (.40 to .45?), and you want maximum penetration, then why not just shoot FMJs or solids? 

[Bluebird5000]

 It appears the Swift A-Frame bullets now available in some handgun calibers match exactly what I was looking for. They are like a partition but with a bonded front end and with the copper partition further forward, so they will expand some but retain 90-95% of their weight. It appears these expand just a little but are a happy medium between an XTP and Hardcast.

[The_Shadow]

The Swift A-Frame bullets are an interesting bullet and should work well for hunting!

[glennasher]

I haven't checked Sierra's offerings in years, but they used to offer a 190 gr. jacketed bullet that looks like a HP without the "hollow", I think they called it a Tournament Master, or something like that. I bought some back then and loaded them up, but still haven't gotten around to shooting them. They might (MIGHT) do what you're asking, as they will open up if they're going fast enough.

[challer61]

I have had very good results with pigs and the new A-Frame and Lehigh penetrators. The DG world figured out that 67% FN is one of the best DG rounds. The 7.5 FK mirrors this approach and I can report great results on pigs with that as well. I am building up some 9x25 with Lehigh penetrators and CEB HP for my next hunt. I expect they will be awesome