I wouldn't sweat the numbers I think the 1-s in 06 with 24" of tube will be perfection! I had a 1a in 30-06 and totally agree with your assessment. The thing practically leapt of your hands when you pulled the trigger. In the 1a 7x57, 270, etc. are about perfect, but I think you'll love the 1-s in 06 should you go that route