I'm getting into benchrest, and starting to think about get more serious into the sport. Funds, of course, are limited. I presently have a Savage Model 12, with a 25" 1-14 twist Pac-nor barrel, chambered in 22-250 Rem.,cylinder contour). For 200 yard Benchrest,5 bulls, 1/2 moa bull, 1 shot each), will I notice much difference between a 22-250 and a 22BR? In other words, would it be worth the $100 to rechamber my 1-14 barrel,plus another the $200 in brass and dies) to 22BR? What would be the ideal barrel twist and bullet weight for this type of benchrest competition with a 22 cal? Who knows, maybe I'll just save up for a year and buy a 6mmBR Barrel! ,I read the 22 faq, and tried the search function, and didn't find a lot of info in what I'm looking for. If you know of any similar threads, I would be glad to know.) Thanks!