got out for a bit this weekend with the 358 american and chronographed a few loads, here is the chronograph info from yesterday:
NOE 230gr RD powder coated bullet with 1.6cc of IMR 4227 (right around 20grs) did 1640fps, this is an accurate load
125gr Missouri bullet, powder coated, with 12.5gr of Bluedot did 1640fps
the powder coated 200gr hollow point with 2.2cc (right around 10gr's) Trailboss did 1180fps and had an SD of 13, extremely accurate
NOE 230gr bullet with 47.5 gr Data 85 did 1980fps and had an SD of 13.2 (this load showed some promise and i think if the bullets were harder it would have shot really good) Could probably stuff a bit more powder in there to get around 2100 with this powder, it is slow for the case but i got a lot of it and it seems to do well with cast bullets.
230gr bullet with 36gr of 3031 averaged 2026fps and had an SD of 65
I did discover that my alloy is softer than i thought, i shot the 3031 load at an old wet 6x6 around 80 yards and the bullet never exited, took it home and split it and the bullet went about 4" and was completely flattened out. After thinking about it i realized that my usual hunting alloy of water dropped 50/50 pure&WW with a touch of tin is no longer that hard after powder coating @ 400 degrees. I am going to have to start quenching when removing bullets from the PC oven, hopefully the rapid temp changed doesn't affect the powder coating. I believe the softer alloy accounted for the larger groups i was seeing with the heavier loads, averaged around 2" for the 3031 and the D85 loads. That little rifle begins to get lively with the heavier loads, not painful but certainly know you are shooting a 230gr bullet, also noticed a huge difference in impact between the 4227 load @ 1640fps and the same bullet @ 2000fps, like about 9" higher with the heavier loads.