I don't carry a 45, but my dad does. We looked into this a bit on the internet. My vote would be for the T-series Ranger ammo. That's what I have in my 40 S&W as well.
Here's a pic of the expansion of a T-series 45 ACP shot into water.
This is a great thread about the Winchesters. Scroll about half way down for some great pictures.
Thread about T-Series Ranger and PDX1
Here's a pic of the expansion of a T-series 45 ACP shot into water.
This is a great thread about the Winchesters. Scroll about half way down for some great pictures.
Thread about T-Series Ranger and PDX1