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Load data for .300 H & H Mag. + .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets

Recommended Powder(s):

.300 H & H Mag. + .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets
Manufacturer SKU:
300BLK-200G-EXP
Bullet Weight:
200gr | 13.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
<<locked>>
Caliber:
.300 H & H Mag. load data
Case Length (l3):
2.850" | 72.4mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
85.9 Grains of Water | 5.58 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
62366 psi | 4300 bar
LID:
LID_B10916_C357
Last updated:
2026-02-11

Load data for 156 loads in caliber .300 H & H Mag. with .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets bullet and 78 powder(s). The key underlying parameters are shown in the table above.

  • Important Notice: DO NOT go below Minimum Charge or above Maximum Charge unless there are reasons. Since xxlreloading.com has no control over the equipment and components used by the customer and the data used in connection with the website, any responsibility and liability for the results achieved is rejected. Also see our Terms of Service

    Questions regarding the load data: Please read the information in the next tab "Explanations".

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  • We recommend you limit powder range to relevant brands to speed up re-calculation of results

    Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

    Our default view only displays powders/loads that fulfill certain criteria: Max pressure of a load <=90% of Max. Standardized Pressure. Fill Rate (Min FR): >80% and <100% for rife loads,  >60% and <100% for pistol loads. Min. Propellant Combustion (Min z): >90% for rifle loads , >80% for pistol/revolver loads. Relax these criteria at your own risk to potentially get more powders shown in the load tables.

    .

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Click on the desired row in the tables below to add a specific load / powder to your Diary and manage there.

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
84%
55709
89%
**25
100%
ADI AR 2209
<<locked>>
95%
56043
90%
**20
99%
ADI AR 2213
<<locked>>
97%
52663
84%
**07
97%
[ADI AR 2217]*
<<locked>>
97%
39015
63%
**31
93%
ADI AR 2225
<<locked>>
97%
34795
56%
**95
95%
Accurate 2700
<<locked>>
85%
55564
89%
**89
99%
Accurate 3100
<<locked>>
97%
52736
85%
**35
100%
Accurate 4350
<<locked>>
89%
55811
89%
**87
100%
Accurate MAGPRO
<<locked>>
97%
50981
82%
**97
95%
Alliant Reloder- TS 15.5
<<locked>>
83%
55419
89%
**25
100%
Alliant Reloder-16
<<locked>>
92%
56072
90%
**40
100%
Alliant Reloder-17
<<locked>>
87%
55985
90%
**33
100%
Alliant Reloder-19
<<locked>>
96%
56115
90%
**23
99%
Alliant Reloder-22
<<locked>>
97%
51909
83%
**07
98%
Alliant Reloder-23
<<locked>>
97%
48979
79%
**38
100%
Alliant Reloder-25
<<locked>>
97%
43207
69%
**79
99%
Alliant Reloder-26 👍
<<locked>>
96%
55259
89%
**08
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
51953
83%
**08
93%
Bofors RP15
<<locked>>
97%
48080
77%
**38
97%
[Bofors RP30]*
<<locked>>
97%
39349
63%
**00
94%
Bofors RP5
<<locked>>
97%
51909
83%
**07
98%
Bofors RP7
<<locked>>
88%
55825
90%
**35
99%
[Hodgdon H1000]*
<<locked>>
97%
39015
63%
**31
93%
Hodgdon H414
<<locked>>
86%
55637
89%
**07
100%
Hodgdon H4350
<<locked>>
93%
55782
89%
**54
99%
Hodgdon H4831
<<locked>>
97%
48805
78%
**82
95%
Hodgdon H4831 SC
<<locked>>
97%
55245
89%
**90
97%
Hodgdon Hybrid 100V
<<locked>>
93%
55593
89%
**48
100%
Hodgdon LVR
<<locked>>
88%
55448
89%
**80
100%
Hodgdon Retumbo
<<locked>>
97%
34795
56%
**95
95%
Hodgdon Superperformance
<<locked>>
89%
55695
89%
**46
99%
Hodgdon VARGET
<<locked>>
84%
55463
89%
**15
100%
IMR 4064
<<locked>>
85%
55680
89%
**15
100%
IMR 4166 Enduron
<<locked>>
85%
55361
89%
**05
99%
IMR 4350
<<locked>>
91%
55303
89%
**48
99%
IMR 4451 Enduron
<<locked>>
86%
55245
89%
**35
99%
IMR 4831
<<locked>>
95%
55317
89%
**71
100%
IMR 4955 Enduron
<<locked>>
97%
53737
86%
**35
97%
IMR 7828 SSC
<<locked>>
97%
53809
86%
**36
97%
Lovex S065
<<locked>>
89%
55869
90%
**31
100%
Lovex S070
<<locked>>
89%
55288
89%
**48
100%
Lovex S071
<<locked>>
97%
44396
71%
**03
99%
Norma 204 👍
<<locked>>
91%
55912
90%
**00
99%
[Norma 217]*
<<locked>>
97%
30893
50%
**26
92%
Norma MRP
<<locked>>
97%
55172
88%
**89
100%
Norma URP
<<locked>>
90%
55767
89%
**90
100%
Ramshot Grand
<<locked>>
96%
55782
89%
**76
98%
Ramshot Hunter 👍
<<locked>>
91%
55970
90%
**17
100%
Ramshot Magnum
<<locked>>
97%
50212
81%
**61
99%
ReloadSwiss RS 50
<<locked>>
83%
55927
90%
**41
100%
ReloadSwiss RS 60
<<locked>>
85%
55985
90%
**33
100%
ReloadSwiss RS 62
<<locked>>
90%
55840
90%
**17
100%
ReloadSwiss RS 70
<<locked>>
91%
55506
89%
**62
100%
ReloadSwiss RS 76
<<locked>>
97%
41684
67%
**92
98%
Rottweil R 903
<<locked>>
85%
55680
89%
**25
100%
Rottweil R 904
<<locked>>
94%
55593
89%
**67
98%
Rottweil R 905
<<locked>>
96%
55724
89%
**17
99%
Rottweil R 907
<<locked>>
88%
55825
90%
**35
99%
SNPE Vectan SP 11
<<locked>>
84%
55230
89%
**64
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
55564
89%
**03
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
55927
90%
**92
100%
Shooters World Long Rifle
<<locked>>
89%
55869
90%
**31
100%
Somchem S355
<<locked>>
85%
55419
89%
**21
100%
Somchem S361
<<locked>>
93%
55608
89%
**38
97%
Somchem S365
<<locked>>
93%
55782
89%
**03
100%
Somchem S385
<<locked>>
96%
55840
90%
**80
99%
Vihtavuori N135
<<locked>>
86%
55767
89%
**43
100%
Vihtavuori N150
<<locked>>
90%
55259
89%
**82
100%
Vihtavuori N160
<<locked>>
88%
55738
89%
**51
100%
Vihtavuori N165
<<locked>>
97%
48965
79%
**69
98%
Vihtavuori N550
<<locked>>
88%
55898
90%
**90
100%
Vihtavuori N555 👍
<<locked>>
97%
55158
88%
**13
100%
Vihtavuori N560
<<locked>>
97%
51967
83%
**20
97%
Vihtavuori N565
<<locked>>
97%
44483
71%
**85
95%
Winchester 6.5 StaBALL
<<locked>>
90%
55274
89%
**28
100%
Winchester 760
<<locked>>
86%
55637
89%
**07
100%
Winchester StaBALL HD 👍
<<locked>>
97%
43772
70%
**03
100%
Winchester Supreme 780
<<locked>>
95%
55579
89%
**74
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
50444
81%
**46
100%
[ADI AR 2209]*
<<locked>>
81%
35679
57%
**46
93%
[ADI AR 2213]*
<<locked>>
83%
33721
54%
**16
90%
[ADI AR 2217]*
<<locked>>
93%
34534
55%
**20
90%
[ADI AR 2225]*
<<locked>>
90%
28500
46%
**11
90%
Accurate 2700
<<locked>>
81%
49081
79%
**93
98%
Accurate 3100
<<locked>>
81%
31894
51%
**44
95%
Accurate 4350
<<locked>>
81%
42627
68%
**77
100%
[Accurate MAGPRO]*
<<locked>>
88%
38000
61%
**51
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
51532
83%
**69
100%
Alliant Reloder-16
<<locked>>
81%
40596
65%
**77
100%
Alliant Reloder-17
<<locked>>
81%
46166
74%
**89
100%
[Alliant Reloder-19]*
<<locked>>
81%
35708
57%
**46
94%
[Alliant Reloder-22]*
<<locked>>
81%
31386
50%
**83
91%
Alliant Reloder-23
<<locked>>
81%
30327
49%
**67
98%
[Alliant Reloder-25]*
<<locked>>
81%
26948
43%
**65
92%
Alliant Reloder-26
<<locked>>
81%
32532
52%
**79
97%
[Baschieri & Pellagri 109]*
<<locked>>
90%
42844
69%
**44
90%
[Bofors RP15]*
<<locked>>
81%
29733
48%
**28
90%
[Bofors RP30]*
<<locked>>
89%
31473
50%
**13
90%
[Bofors RP5]*
<<locked>>
81%
31386
50%
**83
91%
Bofors RP7
<<locked>>
81%
45759
73%
**77
98%
[Hodgdon H1000]*
<<locked>>
93%
34534
55%
**20
90%
Hodgdon H414
<<locked>>
81%
47456
76%
**79
99%
Hodgdon H4350
<<locked>>
81%
39276
63%
**72
96%
[Hodgdon H4831]*
<<locked>>
85%
34534
55%
**93
90%
[Hodgdon H4831 SC]*
<<locked>>
82%
34737
56%
**06
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38218
61%
**75
100%
Hodgdon LVR
<<locked>>
81%
44759
72%
**16
99%
[Hodgdon Retumbo]*
<<locked>>
90%
28500
46%
**11
90%
Hodgdon Superperformance
<<locked>>
81%
42801
69%
**30
97%
Hodgdon VARGET
<<locked>>
81%
50038
80%
**39
100%
IMR 4064
<<locked>>
81%
49690
80%
**23
100%
IMR 4166 Enduron
<<locked>>
81%
48747
78%
**03
99%
IMR 4350
<<locked>>
81%
41060
66%
**05
97%
IMR 4451 Enduron
<<locked>>
81%
46746
75%
**90
98%
IMR 4831
<<locked>>
81%
37014
59%
**52
99%
[IMR 4955 Enduron]*
<<locked>>
81%
33968
54%
**51
90%
[IMR 7828 SSC]*
<<locked>>
82%
33881
54%
**33
90%
Lovex S065
<<locked>>
81%
44860
72%
**54
99%
Lovex S070
<<locked>>
81%
43105
69%
**48
98%
[Lovex S071]*
<<locked>>
81%
27789
45%
**36
93%
Norma 204
<<locked>>
81%
40640
65%
**34
95%
[Norma 217]*
<<locked>>
94%
28660
46%
**54
90%
[Norma MRP]*
<<locked>>
81%
32866
53%
**46
94%
Norma URP
<<locked>>
81%
41756
67%
**67
99%
[Ramshot Grand]*
<<locked>>
81%
33214
53%
**26
90%
Ramshot Hunter
<<locked>>
81%
40292
65%
**54
98%
[Ramshot Magnum]*
<<locked>>
81%
29254
47%
**08
91%
ReloadSwiss RS 50
<<locked>>
81%
52228
84%
**89
100%
ReloadSwiss RS 60
<<locked>>
81%
48791
78%
**35
100%
ReloadSwiss RS 62
<<locked>>
81%
41582
67%
**87
99%
ReloadSwiss RS 70
<<locked>>
81%
40408
65%
**97
99%
[ReloadSwiss RS 76]*
<<locked>>
85%
28790
46%
**44
90%
Rottweil R 903
<<locked>>
81%
49588
80%
**39
100%
[Rottweil R 904]*
<<locked>>
81%
37144
60%
**33
93%
[Rottweil R 905]*
<<locked>>
81%
34708
56%
**33
93%
Rottweil R 907
<<locked>>
81%
45759
73%
**77
98%
SNPE Vectan SP 11
<<locked>>
81%
50053
80%
**85
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50183
80%
**34
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43816
70%
**05
98%
Shooters World Long Rifle
<<locked>>
81%
44860
72%
**54
99%
Somchem S355
<<locked>>
81%
49603
80%
**39
100%
[Somchem S361]*
<<locked>>
81%
37739
61%
**23
92%
Somchem S365
<<locked>>
81%
38247
61%
**28
100%
Somchem S385
<<locked>>
81%
35273
57%
**16
95%
Vihtavuori N135
<<locked>>
81%
48298
77%
**38
100%
Vihtavuori N150
<<locked>>
81%
42728
69%
**95
100%
Vihtavuori N160
<<locked>>
81%
44817
72%
**87
100%
[Vihtavuori N165]*
<<locked>>
81%
29907
48%
**82
92%
Vihtavuori N550
<<locked>>
81%
45295
73%
**23
100%
Vihtavuori N555
<<locked>>
81%
34026
55%
**39
98%
[Vihtavuori N560]*
<<locked>>
83%
33968
54%
**56
90%
[Vihtavuori N565]*
<<locked>>
87%
32750
53%
**29
90%
Winchester 6.5 StaBALL
<<locked>>
81%
41785
67%
**25
100%
Winchester 760
<<locked>>
81%
47456
76%
**79
99%
Winchester StaBALL HD
<<locked>>
81%
27238
44%
**64
98%
[Winchester Supreme 780]*
<<locked>>
81%
35027
56%
**10
93%

Start Load - Barrel Length: 23.60''

Any powder missing? Then click here.

FR ... fill rate of the cartridge in percent

MaxP ... max. pressure of load in psi or bar

% ... max. pressure of load in percent of the maximum allowed pressure for this caliber 

V(0) ... muzzle velocity in feet per second (fps) or  meters per second (m/s)

z ... powder burnt in percent

[...] *... not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.

[...] ²... fill rate low - you might want to consider using a filler to ensure proper ignition.

[...] ᴾ... possible press load - work up slowly to this load while watching for signs of excessive pressure.

👍  ... recommended powder/load for this caliber and bullet combination based on its ballistic performance.

<<locked>>... you need to buy an access license to unlock the data

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