Sam,
I look forward to your results from shooting the BACO bullet. That mold has a fairly short nose at .500". That doesn't make it a bad bullet! That would make it similar to the .45 caliber bullets I got from Ray Hopkins and test at Harris. They sure shot well there. I'll be shooting some more of these this weekend at Lodi if the rain stays away.
The only difference with Ray's bullets this weekend is that I pulled his paper off and patched them with my paper. There's nothing wrong Ray's paper I was just having a lot of trouble with the way he cuts his patches. His angle on the ends of the patches is cut very steep and the leading corner seems to want to bunch up pretty darn fast just handling the bullets for loading. I think chambering would be a nightmare! I cut my patches with a 30* angle (60*) and it seems to work better. It's rare for me to have a problem with that corner at any time in the process.
You can see the different angles in the above picture. You will also notice that I wrap my bullet backwards! I've tried the other way and my fingers don't work that way. The bullet on the left is Ray's and the bullet on the right is my "Lodi" bullet.
Ray's bullets shot well at Harris, this will just make it less of a problem to get that corner to slide up in the chamber. I also feel that this bullet design, the relatively short ogive, is very easy to get excellent accuracy with. At least in my experience, YMMV.