Try Leverevolution... put me with the “308 out of a 303” group if you want but the truth is compressed loads with certain powders and for certain cartridges can really improve accuracy by improving consistency in velocity. LVR seems to be one of those powders and its not so bad to get a velocity/power boost along with better accuracy is it? You bought the 190s for their wallop in the first place. You didn’t say what primers... if you were using WLR, try CCI. Test data says they are about the most consistent. Good luck. I pick up my first 303S Model 1899 tomorrow and my plan is 190 Barnes, 150 Silvertips (old/new stock), PPU brass, CCI 200 and LVR powder. Hodgdon says max compressed loads with LVR for 190s are 38 grains, for 150s its 42 grains.
