You're a *****
. I use 5.0 Bullseye with a 180LFP in a G27 with stock barrel. What I did find though is that I get the same velocity with a starting load of Unique. A starting load of Unique has lower pressure than a max load of Bullseye, so it's my new go-to load after 12 years of doing it with the BE load. Both give me a cheap copy of 180 grain factory loads.