Favorite 300 B.O. Load

bayoubrass · Nov 9, 2017

What are your favorite 300 Blackout loads? Wanting to set up my AR for 300 B.O. Looking for input.

Thanks,
Bayou

Squaregrouper · Nov 9, 2017

Handloads?
Plinking or hunting?
Price or accuracy more important?- don't say both.
Etc.

John from MD · Nov 9, 2017

I have two, both super sonic. One is a NOE 150gn LSP G/C Powder Coated over 17.5 gns of 4227. Another is Sierra 150gn SP over 16.5gn of H-110. Both loads give me 2 inch groups at 100 yards from the bench and both eject reliably. This is from a 18 inch, mid gas, 1 in 8 barrel.

COAL is critical on these especially for lead 150gn bullets. If the bullet ogive is too fat, it will get stuck in the tight chamber neck.

outrider58 · Nov 9, 2017

Sub load;
220gr ELD-X
10.6gr A-1680
CCI #41

Super load;
110gr V-MAX
19.7gr Lil'Gun
CCI #400

These are both super accurate out of my SBR.

iH8DemLibz · Nov 9, 2017

Develop loads that work the best in YOUR rifle.

The barrel will tell you what it likes and what it doesn't.

Hodgdon Reloading Data Center, on-line, can't be beat.

ToolAA · Nov 9, 2017

Using a pistol config w/10.5 barrel.

Sub for Home Defense 220g Eld-X w/10.4g IMR4227.

Just for fun plinking sub loads
208g Epoxy Coated Palmetto Projectiles w/10.0g IMR4227. These will not cycle reliably without suppressor.

outrider58 · Nov 9, 2017

iH8DemLibz said:
Develop loads that work the best in YOUR rifle.

The barrel will tell you what it likes and what it doesn't.

Hodgdon Reloading Data Center, on-line, can't be beat.

Though I refer to this a lot, it is woefully lacking in more modern projectiles. They really need to update it as well as Sierras book. A good place to start though.

I prefer Hornady's book over the aforementioned.

bigjohn · Nov 9, 2017

I use the factory load Barnes 110 for deer. Cheap remington from Walmart for plinking

Klunatic · Nov 9, 2017

115gr Lehigh Defense Controlled Chaos over 19.5gr Lil Gun. Excellent Hunting round out of my 10.2" Noveske.

Park ranger · Nov 11, 2017

110 grain Barnes X
19 grains lilgun
Gemtec brass
wolf primers
2350 fps

150 SMK
17.5 IMR4227
Gemtec brass wolf
1900 fps

C.Alls · Nov 14, 2017

5.0 grains of Trail Boss.
Hand cast (40:1) 147 grain hollow point.
CCI primer.
990 fps of explosive subsonic fun out of a 16.25" barrel.

CSHS · Nov 20, 2017

17.5 gr H110 with Nosler 125 gr Ballistic Tip Hunting, CCI 400, COL 2.060

Melnic · Nov 21, 2017

C.Alls said:
5.0 grains of Trail Boss.
Hand cast (40:1) 147 grain hollow point.
CCI primer.
990 fps of explosive subsonic fun out of a 16.25" barrel.

This is the info I had been looking for. I have had good luck with 308 150gr soft point and 10gr trailboss in my bolt 308win gun running subsonic.

Its really interesting your getting close to what I got on 308 with same projectile and half the powder. just goes to show how its not just the powder amount but other things.

Any reloader manuals have a 300blk & trailboss documented?

deesly1 · Nov 21, 2017

Super-Sonic

125gr Noslers #30125
17.6gr of Hodgdon H110

150gr Hornady
16.5gr of Hodgdon H110

Sub-Sonic

220gr Berrys 30cal
11.0gr of A1680

208gr Hornady ELDx
11.3gr of A1680

My Favorites

DaemonAssassin · Nov 21, 2017

Major03 · Nov 23, 2017

Deesly1... what is the COAL of your Berry’s 220 gen load?

C.Alls · Nov 23, 2017

Melnic said:
This is the info I had been looking for. I have had good luck with 308 150gr soft point and 10gr trailboss in my bolt 308win gun running subsonic.

Its really interesting your getting close to what I got on 308 with same projectile and half the powder. just goes to show how its not just the powder amount but other things.

Any reloader manuals have a 300blk & trailboss documented?

I have not found any reload data for trail boss and subs out of the blackout. I did a bunch of research on blackout sub loads and came across trail boss in a few post and decided to try it out. It's incredibly consistent and my extreme spreads are less than %2. I had a mold modified to fit my requirements and can easily print moa groups at 100 if I do my part.

ironpony · Nov 25, 2017

No favorite load yet but finding the Barnes TAC-TX 110 gr very popular for supers, just ordered some @ $29 per 50 shipped, Powder Valley. OOS most places @ $33 +

Drmsparks · Nov 25, 2017

anyone load 168's or 175s?

Klunatic · Nov 26, 2017

ironpony said:
No favorite load yet but finding the Barnes TAC-TX 110 gr very popular for supers, just ordered some @ $29 per 50 shipped, Powder Valley. OOS most places @ $33 +

If your looking for 110gr round bump it to the Lehigh 115gr, $32 plus shipping for 100. Everything I have shot with this round has died within 50ft, and most drop where they were shot.

Favorite 300 B.O. Load

The #1 community for Gun Owners of the Northeast

Member Benefits:

Member

Kragaphile

American Patriot

Eats Bacon Raw

When All Else Fails.

Ultimate Member

Eats Bacon Raw

Ultimate Member

Ultimate Member

Ultimate Member

Active Member

Active Member

Ultimate Member

Active Member

Why should we Free BSD?

Ultimate Member

Active Member

Member

Old School Rifleman

Ultimate Member

Users who are viewing this thread

Log in

Forum statistics