5.56 load data

5.56 load data

PostBy: wilder11354 On: Sun Mar 30, 2014 12:58 pm

looking for anyone that reloads thier own 5.56 brass and some load data they use. Powder type, bullet size Gr./maker, COL, primers and if its a compressed load or not. Need for 5.56 brass cartridges not .223 brass. there is a difference in wall thickness between the two which will effect pressure of cartridge when fired.
wilder11354
 
Hand Fed Coal Boiler: Harman SF260
Coal Size/Type: nut or pea, anthracite
Other Heating: crown oil boiler, backup.if needed

Re: 5.56 load data

PostBy: lsayre On: Sun Mar 30, 2014 1:15 pm

I've never loaded this cartridge, but I'm pretty sure the most used mil spec powder is Winchester's WC844, which was commercialized (blended?) into more reloader friendly (read that as more uniform in pressure, and therefore more safe to use) lots by Hodgdon and sold as H335.

WC846 [sold by Hodgdon as BL-C(2) ] was tried by the military, but rejected due to its cyclical rate of fire being too high when used in the 5.56. It finds use in the 7.62 round.
lsayre
 
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Stockton Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW)

Re: 5.56 load data

PostBy: wilder11354 On: Sun Mar 30, 2014 1:42 pm

lsayre wrote:I've never loaded this cartridge, but I'm pretty sure the most used mil spec powder is Winchester's WC844, which was commercialized (blended?) into more reloader friendly (read that as more uniform in pressure, and therefore safe to use) lots by Hodgdon and sold as H335.


I will probably/want to use Varget & IMR 8208 XBR powder. got 1000 once fired lake city used brass coming. need to get cci #41 primers.
wilder11354
 
Hand Fed Coal Boiler: Harman SF260
Coal Size/Type: nut or pea, anthracite
Other Heating: crown oil boiler, backup.if needed


Re: 5.56 load data

PostBy: lsayre On: Sun Mar 30, 2014 1:48 pm

I've always gotten much better accuracy from stick powders than from ball powders, so if accuracy is what you are after then you are making wise choices. But if closely duplicating the military rounds is your goal, then H335 is the way to go.
lsayre
 
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Stockton Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW)

Re: 5.56 load data

PostBy: mozz On: Sun Mar 30, 2014 2:14 pm

Not to get into the 556/223 differences but military brass is usually thicker. You should be able to measure the differences on your powder scale. Are you reloading for a auto or bolt? Some powders burn dirty or incomplete in short barrels, i would post what type of rifle and that will get you better recommendations.
mozz
 
Stoker Coal Boiler: Axeman Anderson 1982 AA-130 Steam

Re: 5.56 load data

PostBy: wilder11354 On: Sun Mar 30, 2014 6:21 pm

mozz wrote:Not to get into the 556/223 differences but military brass is usually thicker. You should be able to measure the differences on your powder scale. Are you reloading for a auto or bolt? Some powders burn dirty or incomplete in short barrels, i would post what type of rifle and that will get you better recommendations.

AR,16"barrel, 1:7 twist, semi auto. 55Gr >70 gr bullets are what i am looking at.
wilder11354
 
Hand Fed Coal Boiler: Harman SF260
Coal Size/Type: nut or pea, anthracite
Other Heating: crown oil boiler, backup.if needed

Re: 5.56 load data

PostBy: labman On: Sun Mar 30, 2014 6:59 pm

WC846 loaded at 25.0 grains. CCI #41 primers. 62 grain ball. I have loaded and shot thousands of this recipe, always with good results. BL-c 2 or WW748 are identical powders as WC846.
WC846 has not been available for about a year and a half.
labman
 
Hand Fed Coal Stove: harman mk II
Stove/Furnace Make: harman
Stove/Furnace Model: MK II