Here's the loads I use in my 30-40. '98 Springfield 22" Barrel for some comparison. I pretty much latched on to IMR4350 and didnt look back.

130 SPR (Screw around load.
IMR4064 45 grains
Primer WLR
CAL: 3.0
Avg Vel 2570
Accuracy 1.2-1.5

180 WIN Power Point
IMR4350 46 grains
Primer WLR
CAL: 3.09
Avg Vel 2140
Accuracy 1.2

180 Sierra PH
IMR4350 47 grains
Primer WLR
CAL:3.09
Avg Vel: 2230
Accuarcy .5-.7

220 Sierra RN
IMR4350 44 grain
Primer WLR
CAL 3.09
Avg Vel: 2030
Accuracy .7-1.0

Also Hogden shows 40 grains is max for a 200 grain bullet. 41 grains with a 220 might be a little to stout for a Kragicon action.
200 GR. SIE SPBT Hodgdon H414 .308" 3.090" 37.0 2013 40.0 2151

Can I ask why your using Mag Primers? Regulars I have found have always been good in the Krag