Powder charge for subsonic 80 grains .223 Rem

Conglomera · August 12, 2005, 01:39 PM

Good evening,
I'm involved in the ballistic part of a realistic First Person Shooting game, so I would be thankful if someone could tell me the needed powder charge to drive a 80 grain .223 Remington bullet from a 20" barrel at 1040 FPS.
Moreover, I'm sick of finding data about FN's 5.7x28mm cartridges, I'm looking for the powder charge of both the 31gr. SS190 and the 55gr. subsonic SB193... These datas are needed to calculate guns recoil.

Thank you...

Conglomera · August 13, 2005, 08:28 AM

Anyone has an idea? If not... Any good website?

MADISON · August 15, 2005, 08:56 AM

Powder charge for subsonic 80 grains .223 Rem ?
I don't know about using an 80 grain bullet but, Lee has a "SHOOTER" program out that is available for about $12 that allows you to take your original, full charge, powder and down-size the load to the velocity you want. At 1,000 fps the bullet might tumble.

arthurrh · August 15, 2005, 01:02 PM

There are a couple of good articles on reduced loads for the .223. I personally am using 9.0 grains of W296 with a 40 grain bullet, but I haven't chronographed it yet. YMMV

see http://www.reloadingroom.com/page33.html
and http://www.jamescalhoon.com/bee.html
and http://www.jamescalhoon.com/tobee2.html

Zak Smith · August 15, 2005, 03:36 PM

Some guys around here have used a 55gr FP SP with around 4.0gr Unique.

August 12, 2005, 01:39 PM	#1
Conglomera Junior Member Join Date: August 12, 2005 Posts: 2	Powder charge for subsonic 80 grains .223 Rem Good evening, I'm involved in the ballistic part of a realistic First Person Shooting game, so I would be thankful if someone could tell me the needed powder charge to drive a 80 grain .223 Remington bullet from a 20" barrel at 1040 FPS. Moreover, I'm sick of finding data about FN's 5.7x28mm cartridges, I'm looking for the powder charge of both the 31gr. SS190 and the 55gr. subsonic SB193... These datas are needed to calculate guns recoil. Thank you...

August 15, 2005, 08:56 AM	#3
MADISON Senior Member Join Date: January 1, 2000 Location: Roanoke, Virginia Posts: 2,678	Powder charge for subsonic 80 grains .223 Rem? Powder charge for subsonic 80 grains .223 Rem ? I don't know about using an 80 grain bullet but, Lee has a "SHOOTER" program out that is available for about $12 that allows you to take your original, full charge, powder and down-size the load to the velocity you want. At 1,000 fps the bullet might tumble.

August 15, 2005, 03:36 PM	#5
Zak Smith Senior Member Join Date: December 12, 1999 Location: Fort Collins, Colorado, USA Posts: 2,682	Some guys around here have used a 55gr FP SP with around 4.0gr Unique. __________________ Zak Smith . DEMIGOD LLC . THUNDER BEAST ARMS CORP . COLORADO MULTI-GUN *My PM inbox full? Send e-mail instead.*

August 13, 2005, 08:28 AM	#2
Conglomera Junior Member Join Date: August 12, 2005 Posts: 2	Anyone has an idea? If not... Any good website?

August 15, 2005, 01:02 PM	#4
arthurrh Senior Member Join Date: December 2, 2004 Posts: 189	There are a couple of good articles on reduced loads for the .223. I personally am using 9.0 grains of W296 with a 40 grain bullet, but I haven't chronographed it yet. YMMV see http://www.reloadingroom.com/page33.html and http://www.jamescalhoon.com/bee.html and http://www.jamescalhoon.com/tobee2.html