Reloading 300 BLK

[ASP785]

Why IMR 8208? Do you have a plentiful source of it? I don't understand why you would not want to stick with published (safe) load data?

 

[theswan_33]

I do have a lot of it. Just trying to use it! Plus it's known for good groups. But I'm leaning toward A1680.

 

[458 SOCOM]

Hey SOCOM, was your H110 load supersonic or subsonic? How were the groups?

My loads were supersonic being 125 grains.

The accuracy was good enough for my intended uses.

Now I am starting to play around with a 180 gr bullet.

I will try to make a subsonic round with it, but the bullet may be way to lite for such a test.

 

[458 SOCOM]

I do have a lot of it. Just trying to use it! Plus it's known for good groups. But I'm leaning toward A1680.

If we lived closer, I would trade you a pound of H110/W296 for a pound of your 8208.

 

[Sharingan]

I have worked up some reliable loads with IMR 4227 and 150gr pills as well.

 

[theswan_33]

That's supersonic correct?

 

[T-DUB]

i assume you are loading subsonic for a suppressor otherwise you will have getting it to cycle i load 220 grain sierra with 9.7 grains of win 296 (its the exact same as h110) and gan oal of 2.242 works extremly well through my thunderbeast suppressor i use 296 for all my loads from 110 grain through 150 grain it works great for 300 blackout i have loaded about 1200 rounds of different grain bullets with it

 

[458 SOCOM]

I am not loading for a suppressor.


Just playing with a cartridge and seeing what it's limits are in each direction.

You can have a subsonic round without a suppressor. I am really trying to see what the advantage if it is, so far, other than recoil, I am thinking the 125 gr rounds are the way to fly!

 

[Okie4570]

I am not loading for a suppressor.


Just playing with a cartridge and seeing what it's limits are in each direction.

You can have a subsonic round without a suppressor. I am really trying to see what the advantage if it is, so far, other than recoil, I am thinking the 125 gr rounds are the way to fly!

Same results here, H110 and 125gr Nosler BT's. Tried three different powder charges, all under .6" at 100y, one dead deer last year as a result.

 

[Osage48]

If you loading heavy bullets for sub-sonic speeds using 110/296, I would not worry about the air space as there won't be a lot after you cram that big ole bullet into the case to the correct AOL.