WC 846 w/ 68/69 &75/77 gn 224 bullets

[Baddog0302]

In Hornady's service rifle data pamphlet they list BLC2 data with their 68 & 75 match bullets. Since search's on WC 846 say use BLC2 data, just wondering if anyone has tried either BLC2 or WC846 in their 223's.
I KNOW there other powders that others use that at the present time are NOT available now and probably not for some time, SO please refrain from posting., "I USE XYZ POWDER

Thank you

 

[Beau]

I've used 23.2gr of 846 behind Hornady 75 BTHP for about 2620fps. 23.8 was my max.

With 68 Hornady I used 25gr successfully. Don't know what the vel was, but it used 1 1/2MOA less elevation @ 300 yds than my usual loads.

 

[jonbearman]

I have been using wc846 for years and with really good results.I wouldnt be at all worried about using it except in very hot weather you may have to drop the load down if you are trying for top speed.Speed isnt always the ticket for superior accuracy.

 

[Baddog0302]

Thanks,
I'm using LC & WCC brass so I'll diffidently start lower, are these "bolt gun" loads or AR loads ??

 

[Beau]

My loads are for ARs using LC brass.

 

[chuckbuster243]

I have run 55, 60, 62 grain soft points and fmj's as well as 69 smk with WC846 and WC844 it shoots very well. just got to be careful in the heat. 24-25 with the 55-62 grain bullets and 23 with the 69 shoots well and produce good groups from my ar. 25 grains 846 or 844 with a 55 or 60 grain bullet is one of the most accurate loads I have ever shot in any of the ar15"s I have. I shoot 25.0 WC844 behind 55grain dogtowns into 1/2 at 100 and 1.0 at 200 with my AR fairly regular. Never ran any with 77's I use 8208 for that. Matt

 

[bigedp51]

WC844 & WC846 info

http://www.223reloads.com/home/223-5-56-info/223-5-56-reloading/wc-846-loads

223 / 5.56mm

http://www.223reloads.com/home/223-5-56-info

Duplicating NATO cartridges (cloning)

http://www.223reloads.com/home/223-5-56-info/223-5-56-reloading/duplicatingnato

BLC2 is older than you think.

In the opening days of World War II, a chemist friend of Bruce E. Hodgdon was casually reminiscing about World War I. He mentioned the quantities of surplus smokeless powder the military had dumped at sea after the war; and speculated how useful that would have been to handloaders struggling through the Great Depression. He anticipated a similar surplus powder situation might occur after World War II. Hodgdon began investigating availability of surplus powder when the war ended; and sales to handloaders began in 1946. One of the first powders he found was 4895 used for loading .30-06 Springfield service ammunition. In 1947, he began acquisition of 80 tons of spherical powder salvaged from disassembled .303 British military rifle cartridges manufactured in the United States. By 1949, he was marketing the powder as BL type C. All of the surplus BL type C had been sold by 1961. Olin Corporation had manufactured the powder as 846, and continued production for loading 7.62x51mm NATO cartridges. Hodgdon began marketing post-war production as spherical BL-C lot no. 2, or BL-C(2).

 

[Beau]

Duplicating NATO cartridges (cloning)

http://www.223reloads.com/home/223-5-56-info/223-5-56-reloading/duplicatingnato

Be careful with that one! You can't just swap WC846 & BLC(2) data. I notice they show 27gr of BLC(2) behind a 62gr bullet. Behind a Sierra 60, it only took 25.5gr of 846 to pierce primers for me. Keep in mind too that the surplus powders have a great deal of lot-lot variation.

 

[bigedp51]

Duplicating NATO cartridges (cloning)

http://www.223reloads.com/home/223-5-56-info/223-5-56-reloading/duplicatingnato

Be careful with that one! You can't just swap WC846 & BLC(2) data. I notice they show 27gr of BLC(2) behind a 62gr bullet. Behind a Sierra 60, it only took 25.5gr of 846 to pierce primers for me. Keep in mind too that the surplus powders have a great deal of lot-lot variation.

What primers were you using when you had the pierced primers?

Excessive head clearance, bumping the shoulder back too far can also caused pierced primers.

 

[GrocMax]

Just be a little careful, military surplus equivalents of production sporting canister powders can be substantially slower or faster, each lot should be considered to be a different powder.

 

[wrangler5]

I've found BLC2 to be equal to Varget in giving small groups with 69g Match Kings (Marlin bolt gun, 26" barrel, so may not translate to an AR.) I haven't tried it with Hornady 68 grainers. With 75g AMAX bullets I've had groups from 0.36 to 0.84 MOA - none larger - with BLC2.

 

[Beau]

What primers were you using when you had the pierced primers?

Excessive head clearance, bumping the shoulder back too far can also caused pierced primers.

Yes, those can. But there aren't any tougher primers than CCI 450.

Set back 2-3 thou.