I think that the 725 was chambered in 270, 280, and 30-06 in the long action and 222, 222 MAG, 243, and 244 in the short action. I have a late 725 in 244 that has a 1-10" ROT barrel. When Remington started chambering the 722 and 725 for the 243 they appear to have standardized a 1-10" ROT for both the 243 and 244.