From the information I have on the 44 it does not sound like it is a strong enough action for any modern centerfire, but I am not familiar with the rounds you mentioned. Stevens offered a version in 22 Hornet for a very short time and reports I have heard say the action would soon loosen up. The 44 action was offered in calibers up to 32-40 but nothing of real high performance; I have not heard of any problems with those. They also offered a slightly different version in 38-55 but I do not know how well they held up either. The version for the 38-55's had a curved extension on the front of the hammer that slid into the breech block that helped hold the 'swinging' breech block up - very similar to a rolling block action.
Added - I found this that talks about the 44 action & 22 Hornet - http://www.assra.com/cgi-bin/yabb/Ya...m=1200267946/0
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