Well dang
Breechplug. There's nothing wrong with having a "go to" load that you have complete confidence in. But that doesn't stop you from buying some strange new bullet or powder to play with just to see what happens. In fact, it a lot safer than strange new women (maybe not quite the same?).
Now go out an buy some 271 grain Super Whizz Bang Hollow Points, shoot them at 335 yards with a 50/50 mix of Blackhorn and JSG Super, and give us a report.