I would be interested to see how they do. I have an uncle and cousin with Remington 722's in 244 Remington. They usually use varmint weight bullets and I always wondered how the Speer would perform.
Can't go too heavy with the 12 twist .244. I have one in a 40XB and shoot mostly 60 gr.
Depending on bullet shape, you could go to 90 gr., maybe heavier with a stubby bullet.
DF