300 Blackout Supersonic Hunting Loads

[Koa]

I am just getting into the 300 blackout cartridge, and am looking for any data and experience people might have with supersonic hunting loads. I would prefer to use a 150 gr PT, but will go down the 125gr (AB) area if it means more reliable expansion.

Can't wait for the 300 Blackout load data from Nosler!

 

[buckfever]

I just got one I mean won one a couple weeks ago :shock: its a Smith n Wesson m&p15. The bullets I've tried so far 125 BT and 125 sierra pro hunter and i was using h110 the best load so far was18.1grs and the pro hunter. I don't think your going to need the 125 AB the BT should be plenty stout with velocity's around 2200fps.there's a lot of info out there.

 

[russ808]

Koa,
We have been using 16.9 grains of AA-1680 in our Ar's with the 150 B-tips.
Russ

 

[Antelope_Sniper]

Koa, at blackout velocities, I'd drop back to the 125gr BT. I don't really see why you would need a bonded or partitioned bullet at those velocities.

 

[Koa]

Koa,
We have been using 16.9 grains of AA-1680 in our Ar's with the 150 B-tips.
Russ

Russ, do you know what kind of velocities you've been getting? Most of the 150gr loads I've seen are too close to the 1800fps minimum for reliable expansion on the PTs for my comfort level. My goal would be to use a PT because it's worked well in the past for me, but a lot of people seem to be recommending the BTs.

Thanks to everyone for their input, information, and support! I love this forum.

 

[martineta]

30 or 40 deer dead shooting 125 ballistic tips and 18.5 grs of H110 over the past 13 years starting with a SSK built Contender barrel and still using my 300 Whisper dies to load the same load to shoot out my Noveske AR in 300 Blackout, I tried the 150's early on and killed two deer with it but like the 125's better. I like best shooting 220 gr Outlaw State bullets subsonic through my suppressor for stupid quiet deer smack down. The Outlaws expand at subsonic velocities and turn deer chest cavities to jello. Longest shot subsonic so far 185 yds. Broke the spine and fell at the shot. More than cool to hear a bullet impact that is way louder than the sound coming out the barrel.

 

[kdiver58]

Are you getting any expansion of the 125 grain ballistic tips at 2150 to 2200 fps? This is the load I am planning on using for deer hunting this year in Georgia. If someone has a picture of a recovered bullet I would very much appreciate see a picture of one.

 

[Antelope_Sniper]

Are you getting any expansion of the 125 grain ballistic tips at 2150 to 2200 fps? This is the load I am planning on using for deer hunting this year in Georgia. If someone has a picture of a recovered bullet I would very much appreciate see a picture of one.

BT's will expand just fine at those velocities.

 

[Guy Miner]

30 or 40 deer dead shooting 125 ballistic tips and 18.5 grs of H110 over the past 13 years

I'd say that's pretty doggone convincing!

Guy

 

[1Shot]

Don't have a 300 Blackout but have shot the 125 Nosler ballistic tip in many different 30 cals and you will not have to worry about expansion problems until you get below 1000 fps or so impact velocity. Just keep it under 3000 fps impact down to around 1200 fps and it opens up really well and kills deer size game really well. I see Hornady has come out with a flat base 125 SST that has the interlock ring in it in 30 cal. made just for the 300 Blackout and 30 Remington AR. Midway has them in stock.

 

[russ808]

Koa,
I will look for the data.
Russ

 

[big rifle man]

Martineta, what load are you using with the 220 grain bullet? I have a friend who wants to shoot 220's through his blackout and cannot find any loading data for them.

 

[russ808]

BRM, We have been using the 220 and 210's with 12 to 14 grains of AA-1680. Some of the guys guns liked the 12 grains and mine likes the 14 grains.
Russ

 

[tpepper70]

I'm glad I found this. I just acquired a 300 BLK and gearing up to reload for it. I'll be shooting deer and hogs mainly and was wanting to find some proven loads. Is H4198 a little to slow for this round? I have a bunch of that and some 2400 that I need to use?

 

[russ808]

Tpepper, I can not say about the powders you mentioned. We only used H-110 and AA-1680, and that was because that was all the data we could find and all the powders we had at the time.
Russ

 

[tpepper70]

Thanks Russ. Saw some 1680 at cabelas earlier. Think I'll run back and get it.

 

[DrMike]

I'm glad I found this. I just acquired a 300 BLK and gearing up to reload for it. I'll be shooting deer and hogs mainly and was wanting to find some proven loads. Is H4198 a little to slow for this round? I have a bunch of that and some 2400 that I need to use?

H4198 might just work.

Cartridge          : .300 AAC Blackout
Bullet             : .308, 220, Nosler PART SPSemi 16332
Useable Case Capaci: 16.121 grain H2O = 1.047 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Hodgdon H4198

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-20.0   85    11.92   1264     781   27049   2125     85.4    1.866
-18.0   88    12.22   1293     817   28726   2190     86.5    1.818
-16.0   90    12.52   1321     853   30507   2255     87.5    1.772
-14.0   92    12.81   1350     890   32400   2318     88.5    1.728
-12.0   94    13.11   1378     928   34415   2379     89.4    1.685
-10.0   96    13.41   1407     967   36559   2439     90.3    1.644
-08.0   98    13.71   1435    1007   38842   2498     91.2    1.604
-06.0  100    14.01   1464    1047   41275   2554     92.0    1.564
-04.0  102    14.30   1492    1088   43875   2609     92.8    1.526  ! Near Maximum !
-02.0  105    14.60   1521    1130   46650   2662     93.6    1.489  ! Near Maximum !
+00.0  107    14.90   1549    1172   49607   2712     94.3    1.454  ! Near Maximum !
+02.0  109    15.20   1578    1216   52755   2760     94.9    1.419  !DANGEROUS LOAD-DO NOT USE!
+04.0  111    15.50   1606    1260   56125   2805     95.6    1.386  !DANGEROUS LOAD-DO NOT USE!
+06.0  113    15.79   1634    1305   59741   2847     96.2    1.354  !DANGEROUS LOAD-DO NOT USE!
+08.0  115    16.09   1663    1350   63629   2887     96.7    1.322  !DANGEROUS LOAD-DO NOT USE!
+10.0  117    16.39   1691    1397   67815   2924     97.2    1.292  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba    107    14.90   1618    1279   58028   2719     98.5    1.369  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    107    14.90   1462    1043   41420   2600     87.3    1.563

Cartridge          : .300 AAC Blackout
Bullet             : .308, 220, Nosler PART SPSemi 16332
Useable Case Capaci: 16.121 grain H2O = 1.047 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Alliant 2400

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-20.0   64     8.96   1298     823   30296   1853    100.0    1.801
-18.0   65     9.18   1320     852   31917   1882    100.0    1.764
-16.0   67     9.41   1342     880   33604   1911    100.0    1.729
-14.0   68     9.63   1364     909   35360   1940    100.0    1.695
-12.0   70     9.86   1386     938   37186   1968    100.0    1.662
-10.0   71    10.08   1407     967   39086   1997    100.0    1.628
-08.0   73    10.30   1428     995   41062   2025    100.0    1.596
-06.0   75    10.53   1448    1024   43117   2053    100.0    1.565
-04.0   76    10.75   1468    1053   45255   2081    100.0    1.535  ! Near Maximum !
-02.0   78    10.98   1489    1082   47478   2108    100.0    1.507  ! Near Maximum !
+00.0   79    11.20   1509    1112   49790   2136    100.0    1.479  ! Near Maximum !
+02.0   81    11.42   1528    1141   52195   2163    100.0    1.453  !DANGEROUS LOAD-DO NOT USE!
+04.0   83    11.65   1548    1170   54696   2189    100.0    1.427  !DANGEROUS LOAD-DO NOT USE!
+06.0   84    11.87   1567    1200   57299   2216    100.0    1.403  !DANGEROUS LOAD-DO NOT USE!
+08.0   86    12.10   1586    1229   60007   2242    100.0    1.379  !DANGEROUS LOAD-DO NOT USE!
+10.0   87    12.32   1605    1259   62825   2268    100.0    1.356  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba     79    11.20   1532    1146   57054   2067    100.0    1.423  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     79    11.20   1473    1060   42462   2238    100.0    1.557

 

[tpepper70]

Thanks Dr Mike. I wonder if these powders would work with 110-150 grain bullets. I have a bunch of these grain bullets on hand and mainly plan on super-sonic shooting. I have a 222 Remington that I use the H4198 for which is why I have several pounds on hand. I need to get the program you use. That is pretty neat.

 

[DrMike]

Cartridge          : .300 AAC Blackout
Bullet             : .308, 150, Nosler BalTip 30150
Useable Case Capaci: 18.118 grain H2O = 1.176 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Alliant 2400

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-20.0   68    10.80   1636     891   29111   2323     99.1    1.473
-18.0   70    11.07   1667     925   30729   2367     99.4    1.441
-16.0   72    11.34   1698     960   32419   2409     99.6    1.411
-14.0   73    11.61   1728     995   34186   2448     99.8    1.382
-12.0   75    11.88   1758    1029   36032   2484     99.9    1.354
-10.0   77    12.15   1787    1064   37962   2517    100.0    1.325
-08.0   78    12.42   1816    1099   39978   2548    100.0    1.296
-06.0   80    12.69   1845    1134   42084   2578    100.0    1.269
-04.0   82    12.96   1873    1169   44285   2607    100.0    1.243  ! Near Maximum !
-02.0   84    13.23   1901    1204   46585   2636    100.0    1.217  ! Near Maximum !
+00.0   85    13.50   1929    1239   48989   2665    100.0    1.193  ! Near Maximum !
+02.0   87    13.77   1956    1274   51501   2694    100.0    1.170  !DANGEROUS LOAD-DO NOT USE!
+04.0   89    14.04   1983    1310   54128   2722    100.0    1.147  !DANGEROUS LOAD-DO NOT USE!
+06.0   90    14.31   2009    1345   56875   2750    100.0    1.126  !DANGEROUS LOAD-DO NOT USE!
+08.0   92    14.58   2036    1380   59747   2777    100.0    1.105  !DANGEROUS LOAD-DO NOT USE!
+10.0   94    14.85   2062    1416   62753   2804    100.0    1.085  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba     85    13.50   1970    1293   56631   2558    100.0    1.138  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     85    13.50   1863    1156   41405   2803     99.5    1.269

Cartridge          : .300 AAC Blackout
Bullet             : .308, 150, Nosler BalTip 30150
Useable Case Capaci: 18.118 grain H2O = 1.176 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Hodgdon H4198

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-20.0   91    14.24   1541     791   25810   2319     77.3    1.549
-18.0   93    14.60   1578     829   27477   2399     78.5    1.509
-16.0   95    14.95   1615     868   29254   2478     79.7    1.470
-14.0   98    15.31   1652     909   31164   2557     80.8    1.432
-12.0  100    15.66   1689     950   33206   2634     82.0    1.395
-10.0  102    16.02   1726     993   35390   2710     83.1    1.360
-08.0  104    16.38   1764    1036   37737   2785     84.2    1.325
-06.0  107    16.73   1802    1081   40256   2858     85.3    1.290
-04.0  109    17.09   1840    1127   42965   2930     86.3    1.256
-02.0  111    17.44   1878    1174   45884   2999     87.3    1.223  ! Near Maximum !
+00.0  114    17.80   1916    1222   49033   3066     88.3    1.191  ! Near Maximum !
+02.0  116    18.16   1954    1272   52438   3131     89.2    1.161  !DANGEROUS LOAD-DO NOT USE!
+04.0  118    18.51   1993    1322   56121   3193     90.1    1.131  !DANGEROUS LOAD-DO NOT USE!
+06.0  120    18.87   2031    1374   60125   3253     91.0    1.102  !DANGEROUS LOAD-DO NOT USE!
+08.0  123    19.22   2070    1427   64478   3309     91.8    1.074  !DANGEROUS LOAD-DO NOT USE!
+10.0  125    19.58   2109    1482   69225   3362     92.6    1.047  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba    114    17.80   2019    1357   57853   3178     94.4    1.115  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    114    17.80   1792    1070   40903   2850     79.9    1.289

The latter is a severely compressed load.

 

[tpepper70]

Thanks again Dr Mike. I really need to get this program. Takes a lot of the guess work out.