Has anyone else have a bullet that you just could not get a good load for and then switch to a differnt bullet and the load is perfect? I have been working on a 120gr PT load for a 257 WBY for some time and have tried about every powder you can think of with no decent grouping. Then I switched to a 100gr Speer BT and shot a load at .4" group at 3527fps. I never got a 120gr PT or Hornaday 117gr interlock under MOA. Do you think the .257 is better suited with a 100gr bullet?