Seriously Eld. What should I expect out of the 45-70 lever with microgroove? Out of 6-8 shots at 100 yards, I usually get a cluster of 3" group with 1 maybe two flyers like 3" away opening the group to 6-7". These flyers are driving me crazy. Am I asking too much from a lever?

I noticed in the barrel after shooting 3031 I have alot of unburnt looking powder. I had anothe fella tell me to try WLRM mag primers to get a better burn.

Here is what I have tried in this gun.The 4198 shoots better overall. And I get the velocity I desire. But still groups are 3" with ocassional flyers. I really desire 2" groups. Thinking of moving to a jacketed 405-430gr bullet. Maybe trying 350gr hornady?

IMR4198 42gr-52gr 300Gr Partitions (2000fps with 46gr of IMR4198 with 40fps spread)
IMR3031 52gr-58gr 300Gr Sierra Prohunter (1800fps with 54gr of 3031 with 25fps spread)