I've never heard of a M246. The guys on a swedish forum call all of the M98 Huskys M146, no matter the chambering.

Also, they have M46's (the M94/96 action) chambered for 9.3x62 and .30/06.

Yes - whatever can be afforded should be picked up now, as this is as cheap as they'll ever be. Actually, I said this 3 years ago when I bought my m46 for $275.00, yet they are on average $50.00 cheaper now for the same quality rifle.