WitrynaIMR 8208 XBR. is the latest in the versatile IMR line of fine propellants, this accurate metering, super short grained extruded rifle powder was designed expressly for match, varmint, and AR sniper cartridges.. Ideally suited for cartridges like the 223 Remington/5.56mm, 308 Winchester/7.62mm NATO and the 6mm PPC, shooters will … Witryna3 kwi 2024 · Im going to start working over book max on 8208 xbr and see if I can get around 2800-2900 fps with good accuracy with the 77's out of my 20" barrel. I get that easily with Tac. Honestly Im happy sticking with Tac, I just dont know how well its …
Temperature Sensitivity of 11 Powders for .308 Winchester
Witryna4 lis 2013 · PS: Hodgdon lists this info for IMR-8208 XBR in the .308 with 175 SMKs: 39 grains at 2511 ft/sec and 52,200 psi. 42.5 grains at 2664 ft/sec and 61,800 psi. So, 41.2 to 41.3 grains should get close to 2609 ft/sec that remington quotes. And, 42.3 grains should get very close to 2650 ft/sec that the m118LR load gets. T. Witryna25 cze 2012 · What I like about the powder is it is temp sensitive. And it burns super clean. My barrels and BCG are not near as dirty with this powder. ... #2237621 - 06/22/12 07:00 PM Re: IMR 8208 XBR and 223 loads [Re: DiRTY DOG] Smokeless Die Hard Member III Registered: 10/25/09 Posts: 2996 Loc: Radiator Springs 8208xbr is a great … crossfit synergy
308 Winchester Load Development - 168 SMK with 8208 XBR
Witryna23 sty 2016 · Yip 8208XBR shoots awesome with projectiles under 155gr in the 308. Very small ES & SD from practically every load. That would be my choice of powder for lighter projectiles in the 308. I haven't got round to trying in anything smaller yet apart from my 6BRX but it didn't really work that well unless the projectile was under 80gr. … Witryna5 mar 2024 · I've much less experience with it than others, but I'd say it is very similar acting to Varget and H4350 with regards to temp sensitivity...that is to say, a *little* but not very much at all. Djstorm100 Witryna5 mar 2024 · IMR 8208 XBR #18206904 03/05/23. Joined: May 2008. Posts: 1,145. Jacksonville, FL. richardca99 OP. Campfire Regular. OP. richardca99. Campfire Regular. Joined: May 2008. ... 8208 is great. Not temp sensitive, clean burning, and flows well through my Redding #3. But, as the OP noted, about impossible to find. Benchmark … bug themed names