Subsonic expansion or what...

[Blowby]

411 ft#'s at impact yesterday in the back yard. I thought it was cool enough to share.

http://cimg2.ibsrv.net/gimg/www.hdforums.com-vbulletin/795x867/80-expansion_smk200_1cf6248a10dfcbbab7d6b385e179a0ea2 6364b0d.jpg

[gta_spec]

Very cool. Please tell us more.

[Blowby]

My load data:

SMK 200
Win Brass 2.010
Neck tension .002
TiteGroup @ 7.8 grains
Federal 210 primers
2.865 / 2.285 to Ogive

Shooting at steel 86 yards away. Checking 6 shot group trying reduced neck tension.
Cold bore shot was in the group but the 12:00 shot was a little hot I think.
Could be primer inconsistency but the 210M's are saved for the real loads.

http://cimg6.ibsrv.net/gimg/www.hdforums.com-vbulletin/580x435/80-003_dad9bec12da36aaaaf5d4b6600a94775a1717861.jpg

[crays]

.300 BLK?

What bbl length?

[Blowby]

This is shot from my Rem700 .308 with a 20" stock AAC action and barrel. My do it all ghetto gun.

[Limited GM]

Mighty handy in a rural neighborhood.

[kidicarus13]

Looks good! I think the steel target had a lot do with it. Reproduce that in water or gelatin and put me down for an order.