.243 Factory Winchester 55 gr. shot about the best at around 2", the Hornady 58 gr. were around 8"! 95 gr reloads is the heaviest I have tried and they group around 4-6". Guys, I know I have been negative about my Handi but it has been kind of disappointing. I have the bull barrel, crown looks good, have tried two different scopes, o-ring, clean/cool barrel, dirty/cool barrel, front bag rest right in front of the trigger guard, pull through on the trigger (has a nice trigger out of the box) read about all the possible fixes and things to check. Bought a Savage bolt in .243 and it shoots light or heavy under an inch, no problem. I am tempted to sell the Handi to one of you guys to see what you could do with it.
GuzziJohn