Thanks for telling me to ditch the bipod. That made a world of difference. I tested loads from 29.2 to 30.2 in .2 grain increments. I also tested seating depth from .010 jump, a kiss, and a .010 jam, for each charge. Groups were much better with a couple just a fuzz over an inch and the rest varying from .5" to .8".
I think I found a node from 29.8 grains to 30 grains of Varget, jammed .010". Both groups were under .25". These were only three shot groups, so my next test will include a larger sampling. So, may plan now is to test loads at 29.8, 29.9, and 30, and play with the amount of jam. I'm going to try .010 and .015 jam. If I can get some five shot groups hovering around .25" with these 107smk's, I will be thrilled. Thanks for all the help!
I think I found a node from 29.8 grains to 30 grains of Varget, jammed .010". Both groups were under .25". These were only three shot groups, so my next test will include a larger sampling. So, may plan now is to test loads at 29.8, 29.9, and 30, and play with the amount of jam. I'm going to try .010 and .015 jam. If I can get some five shot groups hovering around .25" with these 107smk's, I will be thrilled. Thanks for all the help!
