when do you decide that a load you developed for your guns is good enough? been shooting our savages this summer and tweaking loads for them and have them shooting very well. .5 to .8 5 shot groups. tried about 15-20 different loads to get here. was shooting .8-.9 5 shot with sierra mk 168 then tried berger 168 best groups yet. been playing with a pair of h&r .223s this summer also. 1 is shooting 5 shot groups of .75. must have shot 20 different loads to date in them. probably done for now going to play with loads for ar15s. just like to tinker with things, how about you when do you say good enough?