Witryna15 kwi 2024 · History on IMR-8208 XBR, XBR = Extreme Bench Rest There was a very accurate non temp sensitive surplus powder that benchrest shooters fought over to buy. Then one day it was all gone. So Hodgdon was encouraged to produce a clone of this mystical powder. IMR-8208 XBR was the result. I'll be damned. Witryna24 mar 2015 · 8208XBR and temperature sensitivity? I've been running Varget for the last several years and like the Honey Badger it doesn't seem to give a crap about …
Temp sensitivity Sniper
Witryna16 paź 2013 · 4350 is temp sensitive so I'd go 4831, but I'd probably try RL 22 first. All IMR and Reloder powders are temperature sensitive with the exception of 8208 XBR and Reloder 15, and none of the 4350s or 4831 powders or others with similar burn rates are ideal powders for the Whelen. Witryna7 gru 2024 · Do yourself a huge favor and ditch the temp sensitive powders, especially the 2520! I worked up a load in summer with the 2520 and was missing low on a 10" plate at 400Y in the winter. ... Did you mean temp "insensitive"? 8208 XBR and IMR 4166 might be worth a try, besides the others I mentioned. I used R15 for fireforming … herts special schools
IMR 8208 XBR Smokeless Gun Powder – tacticalammopowders.com
Witryna25 gru 2011 · I found it to be sensitive to temp, the load needs tuned as temp's change, but like any powder. I will say that this new powder shares nothing in common with the old IMR 8208, The old stuff is a lot hotter. I would say that it is closer to burn rate to 4895. WitrynaIdeally 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 and tack driving accuracy. Clearly, the competitor’s choice and the Varmint Hunter’s dream powder. Important Information: Witryna3 kwi 2024 · IMR is too pansy to publish or release this data, even by email. Therefore if you wish similar performance, you must go on your own devices to work up a load at your own risk. I would love to see a quickload for 77s/75s for 8208 xbr. I have it almost to mk 262 velocities a smidgeon over book max, but hesitate to go further without addtl. info. may half term gov