Dan, I use a drop tube, can get 130 grains of Swiss 1FG in the Starline 50-90 cases, 120gr of the Goex 1FG is about max, it's a bit fluffier and lighter, 120gr Old Eynsford 2FG will easily compress under the 700 or big 750gr flat nosed grease groove bullets.
I run 73grs in my 45-70 cases in the Shiloh Sharps, drop tube makes it easy.
