Can someone tell me why Ruger has not produced any rifles in the Remington Ultra Mag calibers? I would realy like a M77 in .338 RUM

Tannoose,

People have opend the MK11 up for the lott and .375 H&H so I reckon the .338 RUM ought to fit as it's a tad shorter than the .300 RUM case I beleive.

The std. MKII isn't long enough. They would fit into a RSM but I don't think there is emough interest in the megamags to have them tool up.