Took the rifle for a walk in the rain yesterday... no rust today.
I found this chart online:
338 Win mag
Winchester brass
Federal GM215M primers
Reloder 19....73 grains
250 grain Partitions
27 inches.....2806 fps
26 inches.....2787 fps
25 inches.....2761 fps
24 inches.....2743 fps
23 inches.....2716 fps
22 inches.....2697 fps
21 inches.....2676 fps
20 inches.....2656 fps
87 fps from 24 inches to 20 inches...not much loss of speed according to this data.
I'll try some of my handloads from my 24" barreled M77 mk2 in it and put them across the chronograph.
I found this chart online:
338 Win mag
Winchester brass
Federal GM215M primers
Reloder 19....73 grains
250 grain Partitions
27 inches.....2806 fps
26 inches.....2787 fps
25 inches.....2761 fps
24 inches.....2743 fps
23 inches.....2716 fps
22 inches.....2697 fps
21 inches.....2676 fps
20 inches.....2656 fps
87 fps from 24 inches to 20 inches...not much loss of speed according to this data.
I'll try some of my handloads from my 24" barreled M77 mk2 in it and put them across the chronograph.