I appreciate the feed back guys any feed back at all is useful, maybe useful for somebody else that's just lurking. Being that I'm not real good at communication I'll probably try rewording the question a couple of time.
So I'll try it a different way. Take my 270. It's just my general hunting rifle, not one I'm concerned with it driving tacks at all, if I can hit a gallon milk jug out to 500 with it I'm tickled. As for the details I go through with it, brass prep is neck sized, trimmed if need be not sorted, bullets are not sorted but are seated at a standard 0.020 off the lands as long as they fit in the magazine if not then seated to fit, powder charge is weighed out to 0.1gr, I tried 5 different primers, and choose the one that showed best repeatable accuracy. End result is moa with fliers, for that rifle that's good enough.
On to my 7mag and 22-250. Both are semi custom, both are capable of sub 1/2" at 200 actually better if I'm up to it. I used to sort my cases untill I realized that a few $ more spent on a 100 top qualty cases is cheaper than buying a but load of common of the shelf case to cull until you end up with a few that are consistent in all aspects, same thing with bullets, buy good stuff to start with you cull way less if at all. These cases are neck turned, neck sized with controlled amount of sizing, annealed every firing, and ran through a body die, inspected at each step to make sure they fit in the tolerances I set for them. Seating depth is controlled by micrometer seater, primers are chosen by firing groups at 300, then fired again at 300 and 500 to confirm, sometimes I have done this with 2 or 3 different primers to confirm which was most consistent when several show the promise. That doesn't mean this load will pass muster yet, it still has to show what it can do farther out. Currently my method for seating primers is to seat them with my Lee hand held which for some reason won't always seat them fully, then each primer reseated in my press mounted seater. You try to apply the same pressure every time
. I haven't listed every step, to much typing for that, but with the accuracy I'm getting now with either rifle, and that I can consistently shoot 1/2 moa provided the wind isn't getting to nuts ( at which point I may just pack it up if it's beyond my ability to judge it). Would I see a realistic difference in the field with a primer tool such as the K&M? or am I better off waiting until my windage abilities are better?
Just trying to get a feel for what other guys have seen with these tools so that I can decide if it's worth it for me to buy now or down the road. That it very well can help I have no doubt, and I'm sure that I'll have on my bench at some point.