20 mm Load Data

[Dave Brown]

Would anyone happen to have load data for the 20 mm? I have been told I can use H870 and AA8700 load data for WC872 but haven't verified this.

Thanks!

 

[JRS]

20 MM x?

Are you referring to a 20 caliber? Or have you built a killer of tanks and aircraft ;D

 

[expiper]

OP,,,call Fort BRAGG....Roger

 

[Eddie Harren]

I suspect 20 X 218 Bee.

 

[Geno C]

It ain't no 20-218 with those powders! I Have a friend out in WA that uses H5010 I believe. No idea the charge or bullet but I know he uses ALOT of powder

 

[Dave Brown]

20 MM x?

Are you referring to a 20 caliber? Or have you built a killer of tanks and aircraft ;D

20 mm as in 20 mm Vulcan

 

[Eddie Harren]

Geno C, you sure about that? 218 Bee is a beast.

 

[JRS]

Isn't that considered a destructive device, per the ATF?

 

[bigedp51]

Isn't that considered a destructive device, per the ATF?

Not if you load it with cast bullets. : (1400 grain bullet)

 

[Dave Brown]

You are correct JRS in that they are considered a destructive device. There are certain procedures required for you to own one of these beasts.

 

[JRS]

You are correct JRS in that they are considered a destructive device. There are certain procedures required for you to own one of these beasts.

Where do you find barrels and receivers for that behemoth, Dave?

 

[wapiti25]

Yes you can use H870, it was used in the 20 mm you have (known as the 50 series 20 mm ammo). I have actually loaded those for testing purpose. I liked WCC 870 better than WCC 872. I do not remember the charge weights but the case was not full to the neck. I would go low on the 872 data you have but I found 872 to be "spikie" on the lots I used. The powder lots for mil ammo varied a lot in burn rate. Ammo is loaded to velocity and pressure to meet specs.

 

[Dave Brown]

You are correct JRS in that they are considered a destructive device. There are certain procedures required for you to own one of these beasts.

Where do you find barrels and receivers for that behemoth, Dave?

Try Anzio Ironworks JRS

 

[Dusty Stevens]

Have you shot the 308 yet dave?

 

[Nvreloader]

The latest QL has several 20mm cases listed,
at 950+grs of powder for the case,
you are going to need a 55 gal drum of powder,
to have any fun, for a short shooting session. ;D

Tia,
Don

 

[Mozella]

I've shot hundreds of thousands of rounds of 20mm. My favorite was High Explosive Incendiary (HEI) mixed with Armor Piercing Incendiary (API) on a 50/50 basis with one in ten being a tracer round.

 

[Dave Brown]

I've shot hundreds of thousands of rounds of 20mm. My favorite was High Explosive Incendiary (HEI) mixed with Armor Piercing Incendiary (API) on a 50/50 basis with one in ten being a tracer round.

I won't even go there Mozella.

 

[JRS]

Holy crap only $13,000.00 for a single shot with suppressor ;D

And $10.00 per piece for practice ammo :'( I think i'll stick to my longbows Man, that's a big gun!

 

[Dave Brown]

Holy crap only $13,000.00 for a single shot with suppressor ;D

And $10.00 per piece for practice ammo :'( I think i'll stick to my longbows Man, that's a big gun!

JRS, don't you just get the urge to reach out and touch something far away every now and then?

 

[FN in MT]

I have never hand loaded for the 20mm but I have LOADED F-105's with thousands of rds of 20mm to feed their Vulcan cannon. And H-870 IS correct.

I had a buddy who shot a few Weatherby mags and could use H-870. I'd stick a rd of blue tip practice ammo (like the one shown) into one of the holes on our ammo carts and by forcing the projectile back and forth , one could pull the slug out of the case. IIRC eight or nine rds would FILL a 1# powder can to the brim, with more than a pound of H-870.

Wish I'd saved more than the single projectile I have. A blue tip practice rd.

FN in MT