From IMR Legendary Powders

IMR Legendary Powders introduces a new super powder, IMR 8208 XBR. IMR 8208 XBR, where no target is too small, is a remarkably advanced technology propellant perfected for the greatest match, varmint and sniper rounds known today — .223 Remington/5.56mm, .308 Win./7.62 mm, 6mm PPC, .204 Ruger, 6mm BR, .22-250 Remington and similar calibers.

This short-grain extruded rifle powder exhibits a previously unheard of consistency with virtually no change in velocity at temperatures ranging from -40 degrees F to 165+ degrees F. Uniformity from shot to shot translates into tack-driving accuracy, and this powder has passed the test:

* Currently loaded in premium factory sniper type ammunition.
* Leading competitive bench rest shooter Lou Murdica won numerous matches with it in 2009, starting with Heavy Varmint Grand Aggregate at the Cactus Classic.
* August 2009, Jim Carmichel won the International Benchrest Shooters Association’s 40th Group National Championships, Heavy Varmint Grand Aggregate. Because temperature conditions change, bench rest shooters vary charge weights during a day’s competition. What is significant here is that Jim shot the exact same load of IMR 8208 XBR both days to win the event.

IMR 8208 XBR are available in 1-pound canisters and 8-pound kegs at dealers everywhere. For more information or complete data, visit imrpowder.com and the Reloading Data Center, see the 2010 Annual Manual, phone IMR at (913) 362-9455 or write to:
IMR-Legendary Powders
6231 Robinson
Shawnee Mission, KS 66202