Witryna16 kwi 2013 · That means it packs densely in a case and meters well in manual powder measures. As to burn rate, Chris stated that IMR 8208 XBR is “a tad slower than H4895.†Chris confirmed that the powder’s distinctive qualities are temp stability in an ultra-wide temperature range and a very broad accuracy window. Chris said: … Witrynavarmint, 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 find 8208 XBR totally insensitive to changes in temperature, while yielding max velocities …
Temp sensitivity Sniper
Witryna3 paź 2009 · IMR 8208 XBR is Consistent in All Conditions. This short grain extruded rifle powder exhibits exceptional stability with virtually no change in velocity at temperatures ranging from -40 degrees F to 165+ degrees F. Lou Murdica, who helped develop this new powder, confirms that it is not temp-sensitive. 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. daughters of malaya
Powder temperature sensitivity - AR15.COM
WitrynaAbout IMR 8208 XBR NOTE: Although new IMR 8208 XBR is made by Thales (ADI), Hodgdon has not published an ADI-equivalent product code. Thales has loaded some of the 8208 XBR into military ammo. However, Thales Australia Ltd. tells us: “[We] have yet to release the IMR 8208 XBR propellant in Australia to the sporting shooters market; … 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 … 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 … bl2 teeth of terramorphous vs conference call