Loaded Barnes XPB in 444 Marlin 225grain tested POI at 50m and velocity
Brass: Starline
Rifle: Marlin 22" 1;20 Twist
Powder: 2207 H4198
Primer: Winchester LR
ADI Load data 42.2= 2107fps - 46.9 = 2361fps (24" test barrel in book)
44.5g - 2340fps
45g - 2311fps (anomaly)
45.5g - 2364fps
45.8g - 2380, 2385fps (2 shots)
I didnt go to 46.9 due to having the velocity at 2380fps - I didnt want to exceed and reached faster than book max which made me question pressure. Primers looked fine.
POI at 50m was exactly the same as my 240g XTP load doing 2350fps
POI at 50m was 14cm/5.5inch higher than the 300g XTP at 2080fps. (load for this was 50g 2206H) clover leaf at 50m.
Very accurate load, a clover leaf at 50m.
At $3.50 per projectile I didnt want to shoot more than absolutely necessary
Load at your own risk, always follow manual, start low and work up.