I'm a new guy and realize if I had patience I'd probably find multiple threads on what I'm doing. But I am using the materials I have on hand- 170 gr. flat nose from a LEE LH 309-170 mold I bought to experiment with 30-30 loads.I had limited luck with those because I was using hytec coating and it was building up after 6-8 rounds and causing difficulty chambering. I went back to just casting from straight wheelweights and running them through a .310 sizer to seat a gas check and rolling in ALOX lube. they seem to be doing fairly well in my old rifle with a 2 groove 1943 barrel I bought in the cosmoline years ago and installed. anyway I had very little 2400 that I saw reccomended in an article by C E Harris saying 16 grains worked well,and my local supplier says they can't get any Alliant powders in. but I have an old can of 3031 that he says 24 grains will work pretty good. I fired some today along with a few unique loads. the 3031 grouped better considering my 74 year old eyes. fairly stout recoil but better than full house. anyway I have a reduced range high power match ( 100 yd. ) Saturday and I want to use the rifle.I am thinking about reducing the loads to 22 grains. I really don't have time for any more testing and I need to get 50 rounds loaded. anybody have thoughts on whether there is any drawback to going that light? Thanks