.300 blackout recipes?

A

ACP

Well-Known Member
Joined
Feb 6, 2020
Messages
427
Location
USA
Rating - 100%
9   0   0
Anybody have a tried and true .300 recipe they care to share? Looking to dial in a general purpose hog and range load, unsuppressed.
 
ACP said:
Anybody have a tried and true .300 recipe they care to share? Looking to dial in a general purpose hog and range load, unsuppressed.
Click to expand...
This is precisely what I load Speer TNT 125gr for. You can get the bullets for 11-17c depending on when/where/how you buy and I can get over 1800fps out of an 8.5”. I’ll know 10.5” velocity in a few months once I finish the build. Ballistic gel tests show this round performs OK but not as good as 110gr defensive rounds, which I think is to be expected.

Previously I was loading 147fmj but you can get the TNT’s for the same price+\-.

125gr HP Speer TNT
18.4gr H110
S&B SRP
2.085" OAL
Very light crimp
Avg 1840fps @ 8.5” BA barrel

Edit: I dropped down to 18.2gr as a result of occasional blown primers while shooting suppressed on 8.5” barrel. No issue on 10.5” or unsuppressed.
 
Last edited:
Jerzsubbie said:
This is precisely what I load Speer TNT 125gr for. You can get the bullets for 11-17c depending on when/where/how you buy and I can get over 1800fps out of an 8.5”. I’ll know 10.5” velocity in a few months once I finish the build. Ballistic gel tests show this round performs OK but not as good as 110gr defensive rounds, which I think is to be expected.

Previously I was losing 147fmj but you can get the TNT’s for the same price+\-.

125gr HP Speer TNT
18.4gr H110
S&B SRP
2.085" OAL
Very light crimp
Avg 1840fps @ 8.5” BA barrel
Click to expand...


Thanks for sharing this one
 
I’m running a very similar recipe as jerzsubbie,
Hornady 125g SST and I just started using the Speer 125g TNT for cost, 18.3g H110, 2.060” COAL, 2065fps in a 10.5” barrel. I’m doing a firm Lee crimp.
I was surprised as the velocity jumps with only 0.3g of H110. From 17.7 to 18.3 each 0.3g produced an additional 100 fps. The Hodgen on line manual says 18.5g is a max load.
 
Last edited:
Pink_Vapor said:
I’m running a very similar recipe as jerzsubbie,
Hornady 125g SST and I just started using the Speer 225g TNT for cost, 18.3g H110, 2.960” COAL, 2065fps in a 10.5” barrel. I’m doing a firm Lee crimp.
I was surprised as the velocity jumps with only 0.3g of H110. From 17.7 to 18.3 each 0.3g produced an additional 100 fps. The Hodgen on line manual says 18.5g is a max load.
Click to expand...

Thanks! Looks to be an appreciable difference due to additional barrel length. What kind of range can you get out of the 225g before seeing noticeable drop off
 
ACP said:
Thanks! Looks to be an appreciable difference due to additional barrel length. What kind of range can you get out of the 225g before seeing noticeable drop off
Click to expand...
I fat fingered the post, it's 125g, not 225.
I do enjoy shooting 208g Hornady Amax subs for fun every once in a while.
With the 125's I've dialed in my Aimpoint at 75 yards and only hold up a 1-2" at 175 yards.
 
  • Like
Reactions: ACP
Pink_Vapor said:
I fat fingered the post, it's 125g, not 225.
I do enjoy shooting 208g Hornady Amax subs for fun every once in a while.
With the 125's I've dialed in my Aimpoint at 75 yards and only hold up a 1-2" at 175 yards.
Click to expand...

thanks for the correction, that’s not bad at all in terms of hold off for 100 yds difference for .300, may have to give this one a try. Any terminal ballistic opinions on the 125s on live targets or are you target and range shooting primarily?
 
ACP said:
thanks for the correction, that’s not bad at all in terms of hold off for 100 yds difference for .300, may have to give this one a try. Any terminal ballistic opinions on the 125s on live targets or are you target and range shooting primarily?
Click to expand...
I got a 6pt buck this year with a Hornady 125 SST ~17.5g of H110 (a manual I'd used showed a 17.5g max).
Double lung heart shot at 75 yards, he did a very high (10'12') vertical leap with a 1/2 twist, blood spraying like a kid playing with a garden hose, bound 3 times and piled up. I'm now confident in this round for hunting and HD. I got the Speer's primarily for shooting, although they may perform just as well.
I know the Barnes black tip 110's are the cat's meow, I don't want to spend that much per round, and they're availability was/is lacking.
 
Last edited:
  • Like
Reactions: ACP
Jerzsubbie said:
This is precisely what I load Speer TNT 125gr for. You can get the bullets for 11-17c depending on when/where/how you buy and I can get over 1800fps out of an 8.5”. I’ll know 10.5” velocity in a few months once I finish the build. Ballistic gel tests show this round performs OK but not as good as 110gr defensive rounds, which I think is to be expected.

Previously I was loading 147fmj but you can get the TNT’s for the same price+\-.

125gr HP Speer TNT
18.4gr H110
S&B SRP
2.085" OAL
Very light crimp
Avg 1840fps @ 8.5” BA barrel
Click to expand...

The 125gr TNTs are great. I load mine over 17.5gr of H110 @2.05 OAL
 
Pink_Vapor said:
I got a 6pt buck this year with a Hornady 125 SST ~17.5g of H110 (a manual I'd used showed a 17.5g max).
Double lung heart shot at 75 yards, he did a very high (10'12') vertical leap with a 1/2 twist, blood spraying like a kid playing with a garden hose, bound 3 times and piled up. I'm now confident in this round for hunting and HD. I got the Speer's primarily for shooting, although they may perform just as well.
I know the Barnes black tip 110's are the cat's meow, I don't want to spend that much per round.
Click to expand...

Ive been impressed with the SSTs, shot them for a long while in .308 and never had anything make it far at all, and not super destructive on meat which is nice.
 
Regarding max load of H110 for a 125gr in .300BLK, I’ve seen manuals/manufactures publish maxes all over in the 17-19gr range. Of course charge weight isn’t the only factor but plenty of people report loading up into the low 19gr range in search of increased velocity. Not that I am recommending it, but you can try working up into that range if you feel the need to try to reach that 2,000fps+ threshold that many .308 projectiles require for optimal performance.
 
Pink_Vapor said:
just saw this endorsement for the 300BLK 110g Hornady Vmax
Click to expand...

110gr definitely seems like the sweet spot for .300 supers. The Z/V-Max and Nosler Varmageddon both get high praise from most people you talk to. I regret not stocking up on Z-Max’s when they were being clearanced out.
 
Last edited:
I use WW 296 for 300 BLK.......I also have a bolt gun set up to do pressure test work as well.

My #1 Bullet in 300 BLK is the 100 FB Raptor from Cutting Edge Bullets

100 FB Raptor 20.3/WW 296 54000 PSI -- 16" 2530-2570 fps -- 10.5 " 2330-2375 fps -- 8.5" 2280 fps

110 Barnes TAC 19.5/WW 296 55000-56000 PSI -- 16" 2405-2430 fps -- 10.5" 2240--2255 fps -- 8.5" 2190-2210 fps

110 Hornady Various, Soft, Red Tip+ 19/WW 296 51000-53000 PSI 16" 2325-2420 fps -- 10.5" 2120-2180 fps -- 8.5" 2130-2160 fps

120 Barnes TAC 19/WW 296 55100 PSI 16" 2315 fps



Tested a Couple of 125s only

125 Hornady 18/WW 296 58300 PSI "Over Max Pressure" 16" 2117 fps
125 Hornady 17/WW 296 57100 PSI "Over Max Pressure" 16" 2090 fps

125 Nosler BT 17/WW 296 58600 PSI "Over Max Pressure" 16" 2099 fps

The only H-110 tested was for a friend of mine with 100 FB Raptors.

100 FB Raptor 19.3/H-110 53200 PSI 16" 2465 fps

We consider 55000 PSI Max Safe Pressure for sustained use in various Semi Rifles/Handguns and for 300 BLK Cartridge overall.
 
Having lost 2 deer with 18.x H110 pushing 125 Nosler and Hornady pills, I would recommend only 110gr bullets for shorter barrels. 125s simply wont expand with under a 10" barrel velocities. I think Hornady says 1600fps with the SST but it sure didn't work that way for me in the real world on a real animal.
 
Ikarus1 said:
Having lost 2 deer with 18.x H110 pushing 125 Nosler and Hornady pills, I would recommend only 110gr bullets for shorter barrels. 125s simply wont expand with under a 10" barrel velocities. I think Hornady says 1600fps with the SST but it sure didn't work that way for me in the real world on a real animal.
Click to expand...


Exactly why I did not pursue any more work with 125s.

Well known, I like that 100 FB Raptor for serious Terminal Performance. It is the best there is, and if you ever see it in the field, you will agree. Cheap? NO..... But not like you are going to shoot 100s or 1000s of them. At least not normally, but I do order 2500 at a time myself. LOL........

The Barnes TAC is next in line, it is excellent in Terminal Performance as well

The various Hornady bullets do reasonably well at 10.5 and 8 inch velocities. Not Barnes or Cutting Edge good, but decent as long as you keep velocity 2100-2300 fps at impact.
 
Michael458 said:
Exactly why I did not pursue any more work with 125s.

Well known, I like that 100 FB Raptor for serious Terminal Performance. It is the best there is, and if you ever see it in the field, you will agree. Cheap? NO..... But not like you are going to shoot 100s or 1000s of them. At least not normally, but I do order 2500 at a time myself. LOL........

The Barnes TAC is next in line, it is excellent in Terminal Performance as well

The various Hornady bullets do reasonably well at 10.5 and 8 inch velocities. Not Barnes or Cutting Edge good, but decent as long as you keep velocity 2100-2300 fps at impact.
Click to expand...

Didn't Hornady just come out with a .300blk supersonic specific projectile? I think you posted about it recently
 
Michael458 said:
as long as you keep velocity 2100-2300 fps at impact.
Click to expand...
This is what I’ve read a few different places and given the experience you shared recently, I’m assuming you’ve actually confirmed this.

Since we’re shooting bullets designed for .308, in order for them to perform as designed, we need to keep the velocity in that 2100-2300’ish range. Of course that’s tough to do with short barrels and/or heavy bullets in .300BLK.

This is partly why I’m building a 10.5” .300BLK pistol to compliment my current 8.5” pistols.
 
Ikarus1 said:
Didn't Hornady just come out with a .300blk supersonic specific projectile? I think you posted about it recently
Click to expand...

On the other thread there was a chap talking about a "SubSonic" Hornady. I don't know anything about it except what Hornady Claims, and I find from past experience I would want to test anything that Hornady claims.

Jerzsubbie said:
This is what I’ve read a few different places and given the experience you shared recently, I’m assuming you’ve actually confirmed this.
Click to expand...

I have tested the various 110 Hornady bullets here.

DSC04511.jpg


DSC04513.jpg


DSC04521.jpg


DSC04518_1.jpg


DSCN2007.jpg


DSCN2008.jpg


DSCN8807.jpg


DSC04718.jpg
 
Jerzsubbie said:
This is partly why I’m building a 10.5” .300BLK pistol to compliment my current 8.5” pistols.
Click to expand...

I am very partial to the 10.5 inch guns. Running the 100 Raptors in these I am getting 2330 to 2380 out of the various guns. That is extremely effective for the ranges these guns will be used. On average with the various 8.5 inch guns here I am still getting 2280. 50-100 fps less than the 10.5. While with some bullets this would make little difference, I can tell you from experience with a Raptor, 50-100 fps increase in impact velocity is noticeable in the amount of medium destruction and trauma inflicted.

In addition, do not compare depth of penetration of my work with ballistic gel. You can double the number if considering BG. You can add 80% in animal tissue. With Raptors in Animal tissue you can double what you see in the test work here, and that percentage is conservative. Just FYI................
 
Michael458 said:
I am very partial to the 10.5 inch guns. Running the 100 Raptors in these I am getting 2330 to 2380 out of the various guns. That is extremely effective for the ranges these guns will be used. On average with the various 8.5 inch guns here I am still getting 2280. 50-100 fps less than the 10.5. While with some bullets this would make little difference, I can tell you from experience with a Raptor, 50-100 fps increase in impact velocity is noticeable in the amount of medium destruction and trauma inflicted.

In addition, do not compare depth of penetration of my work with ballistic gel. You can double the number if considering BG. You can add 80% in animal tissue. With Raptors in Animal tissue you can double what you see in the test work here, and that percentage is conservative. Just FYI................
Click to expand...


Very complete set of data, many thanks for sharing. Overall it would appear the 100s are delivering the best performance. On penetration notes, what medium are you using if not BG or tissue?
 
ACP said:
On penetration notes, what medium are you using if not BG or tissue?
Click to expand...

Wet Print Medium........ With every 10 inches of wet print a 1.5 inch layer of catalog/magazines. Believe it or not, the 1.5 inches of catalogs/magazines add 35% more density to the medium, without disturbing bullet behavior.
 
You must log in or register to reply here.
Back
Top Bottom