I have 96 out of 100 of these Speer Gold Dot 230 gr bullets leftover and don't even use them at the range or hunting @ 150 yards. Supposedly they will break-up when adding too much speed.

Same with my 230 gr XTPs. So I parked them on my gun cabinet shelf, to collect dust until further notice. It's the same reason why I won't purchase the 200 grain XTP in 50/40. I have more confidence in using Hornady SSTs and Precision Polymer Tip 50/40s with 90-100 grains of BH powder.

Using 80 grains appears to be fine, as long as you're sticking to 100 yards. Beyond that calls for more fps, that ensures a clean, quick kill/harvest.