In asking my question, i was probably making things more complicated. We've used Fusions, Bear Claws and Hornady 55s with no issues. As mentioned previously, I ordered the 55gr. Bear Claws.

They came in today along with some more 62s. Looking at them side by side, the length difference is obvious to the eye. Just for the heck of it, I measured them so that if anyone was wondering, you would have the info.

The 55s were .725, the 62s. .810.

I just got curious and measured the Hornady 55 w/can. Mine are older flat base, they're .705.