I used to use Hornady 140 gr. SPBT and had good luck with them. 5 yrs ago I started using the SST Hornady 140 gr. have shot 6 deer with them but it seems like I don't get the knock down in their tracks and exits that the SPBT's had. I'm going out to hunt Colorado Wt's this fall and then Alberta. I have thought about going back to the SPBT's. I like the 140 gr. ballistics but has anyone used either of these and what is their opinion on which is better. I would be open to maybe try a different 140 round. Thanks