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Imr 8208 xbr
Posted: Tue May 13, 2014 11:22 pm
by treetop
Hi,
Anyone have any data on this powder, for
208gr head
Primer 210m
26" 1:12 twist barrel
Cheers
Re: Imr 8208 xbr
Posted: Wed May 14, 2014 6:13 am
by Mr_Logic
Don't use that powder With that bullet, it's waaaay too fast. Well suited to a 155gr. With a 208, you will need a much slower powder. Not sure what as I don't shoot something so heavy - 12-twist barrel.
Re: Imr 8208 xbr
Posted: Wed May 14, 2014 11:42 am
by Laurie
Yes, it's far too fast burning for the 208 - I assume we're talking .308 Win. It's a good choice in the cartridge with 155s, but I'd hesitate to try it with 185s never mind anything over 200gn.
For the 208, use Viht N550 or Alliant Re17 / Commonside Elcho 17, preferably in small primer Lapua 'Palma' brass with magnum or BR primers.
12-inch twist is also too slow for this bullet. It may just stabilise at short ranges. Long-Range performance will be inconsistent with poor elevations at best, dire at worst.