#11
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Ran some 8208 through my buddy's .223AI this past weekend in a serious headwind, 55gr Bergers and Sierras, 23.5 and 24 grains in Lapua brass produced groups under .3 from both of us. Almost unbelievable considering the wind. So far it doesn't seem to be especially fussy about primers and other factors, and no pressure issues whatsoever in .223AI, 6BR and .17 Fireball. Can't wait to try the stuff in the 6x45 and 6x47!
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#12
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Quote:
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#13
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8208
Upodate:
factory 223 w/1:12 barrel using Berger 52's 26.9 IMR8208 @ 3400 fps...very accurate 20BR-IMP 1:9 barrel Berger 50's IMR8208 is too fast burning equalling in poor accuracy. Accuracy is better with H414 or similar burn rate. |
#14
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anyone think it would too fast for a .22-250? i don't shoot light bullets in this gun, 55gr min
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#15
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22-250 w/8208
I've also been wondering about the 22-250 with 8208
The 22-250 has a postive history with H380 and mine liked RL15 which are all much slower then 8208. On the other hand, I used IMR 4895 succesfully in the old days which is same burn rate as 8208 Guess we'll find out over the next couple of weeks as I'll be trying it. |
#16
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Imr 8208
No, didn't set up chrono this time out. Will update if 'n' when I can.
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#17
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Chronoed the 17 FB with 18.6 of IMR8208 XBR, CCI 400 primers and RP brass, sorted in to one grain lots, topped with a 30 grain Berger Varmint bullet. The loads were thrown with a Lymann 55 powder thrower after it was set to 18.6 grains, and not individually weighed. Muzzle velocity is 3628, out of a 26 inch factory remington barrel. (Hogdon site says it should do 3634 out of 24" barrel, so close enough for the girls I go with)
I said in an earlier post that the 8208 and the 30 grain pill were made for each other because the last time I used them they grouped great, and did this time too. What really blew me away was the MAXIMUM velocity variation was 4 fps over 20 rounds. I have never had a load of anything that came in that close. I didn't know my Chrony could even measure that tight. Burn rate is slower than H335, and is very close to H4895. This looks like it is going to be a very good powder for loads that like the 4895 burn rates. |
#18
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I may have to give the 8208/30gr berger combo a try. sounds promising as it's at the slower end of the fireball powders.
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#19
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8208 Finally 20 VT Maybe ?
My 8208 just came in, has anyone got any starting numbers for the 20VT with32 gr. pills. Thanks in advance. Les
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#20
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Les it will be interesting to see your results. I'm convienced it will work well in the TAC 20 and the .204 being just faster in burn rate than the H4895 but the VT may require just a hair faster powder. Keep us updated.
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