Nick

I've had good luck with IMR 4831 pushing 220 gr partitions. Two good loads have been 60.5 and 61.2 gr.

With the 180 gr bullets Reloder 22 has been working well for me with loads around 67.5 gr.

Haven't tried the 'in-between' bullet weight of 200 gr yet but have some partitions on the shelf just waiting to be loaded. Would be interested to hear what loads others have been using in this bullet weight.