Bushyspoons, you are doing GREAT! - new rifle, working up loads. I found my .32, from a rest at 25 yards would put 5 into a tiny hole, maybe .45 calibre just using 20gr. 3F GOEX.
I found that load, while accurate at 25 yards, would not hold smaller than about 2 1/2" at 50yards. I could never do better with that rifle at 50yards than 1 1/2". That load required
35gr. 3F GOEX. I was using 2 different balls in the rifle, and a water based lube as well as Track's mink oil. The Mink oil needed 40gr. to get the same accuracy as 35gr. with a water
based lube. Balls used, were .311" and .320". The patches were usually 10 ounce Denim, in those days, it was US made and .0225" thick. I also shoot a mattress ticking that I measured
compressed in calipers at .0235". Now, much depends on how a person measures the cloth & which tool. I have 3 sets of calipers and each measures the same material differently.
I assume this is due to slightly different anvil widths. I measure the new 10 ounce denim as .021". That material shoots well in all of my rifles.