Hello
If its any help to anyone thought id post.
444 Marlin did some load testing. Its a Remlin with 22" barrel 1:20 twist.
Brass: starline
PRIMER: winchester
Powder 2207
Bullet: 240g XTP
46 grains - 2421-2461fps
1.5" group
Brass starline
Powder: 2206H
Bullet: xtp 300g
Primer: winchester
49grains - 1987, 1967, 1984, 1981 - 1.5 inch at 100m
50grains - 2065, 2055, 2049, 2038 - 1 inch group 100m.
Hope it helps someone. Work up carefully. In manual still well under pressure.