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

Recommended Powder(s): Alliant Reloder-26, Norma 204, Norma MRP, Ramshot Hunter, Rottweil R 905

.300 Win. 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:
1.410" | 35.8mm
Caliber:
.300 Win. Mag. load data
Case Length (l3):
2.620" | 66.5mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.740" | 18.8mm
Shank Seated Depth:
0.740" | 18.8mm
Case Capacity:
90.5 Grains of Water | 5.88 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
62366 psi | 4300 bar
LID:
LID_B10916_C380
Last updated:
2025-02-02

Load data for 154 loads in caliber .300 Win. Mag. with .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets bullet and 77 powders such as Alliant Reloder-26, Norma 204, Norma MRP, Ramshot Hunter, Rottweil R 905. 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>>
83%
55912
90%
**48
100%
ADI AR 2209
<<locked>>
94%
55985
90%
**46
99%
ADI AR 2213
<<locked>>
97%
54375
87%
**56
98%
[ADI AR 2217]*
<<locked>>
97%
40248
65%
**84
94%
ADI AR 2225
<<locked>>
97%
36158
58%
**54
96%
Accurate 2700
<<locked>>
84%
55985
90%
**21
99%
Accurate 3100
<<locked>>
97%
55071
88%
**84
100%
Accurate 4350
<<locked>>
88%
55463
89%
**97
100%
Accurate MAGPRO
<<locked>>
97%
53345
86%
**62
96%
Alliant Reloder-16
<<locked>>
90%
55724
89%
**49
100%
Alliant Reloder-17
<<locked>>
86%
55970
90%
**59
100%
Alliant Reloder-19
<<locked>>
94%
55230
89%
**33
99%
Alliant Reloder-22
<<locked>>
97%
54041
87%
**59
99%
Alliant Reloder-23
<<locked>>
97%
51605
83%
**00
100%
Alliant Reloder-25
<<locked>>
97%
44483
71%
**25
100%
Alliant Reloder-26 👍
<<locked>>
95%
55564
89%
**35
100%
Bofors RP15
<<locked>>
97%
49617
80%
**87
98%
Bofors RP30
<<locked>>
97%
41336
66%
**69
95%
Bofors RP5
<<locked>>
97%
54041
87%
**59
99%
Bofors RP7
<<locked>>
87%
55811
89%
**61
99%
[Hodgdon H1000]*
<<locked>>
97%
40248
65%
**84
94%
Hodgdon H414
<<locked>>
85%
55506
89%
**23
100%
Hodgdon H4350
<<locked>>
92%
56014
90%
**87
99%
Hodgdon H4831
<<locked>>
97%
50125
80%
**31
96%
Hodgdon H4831 SC
<<locked>>
96%
55535
89%
**17
97%
Hodgdon Hybrid 100V
<<locked>>
92%
55753
89%
**74
100%
Hodgdon LVR
<<locked>>
87%
55941
90%
**07
100%
Hodgdon Retumbo
<<locked>>
97%
36158
58%
**54
96%
Hodgdon Superperformance
<<locked>>
87%
55753
89%
**66
100%
Hodgdon VARGET
<<locked>>
84%
55912
90%
**48
100%
IMR 4064
<<locked>>
84%
55564
89%
**28
100%
IMR 4166 Enduron
<<locked>>
85%
55738
89%
**38
100%
IMR 4350
<<locked>>
90%
55535
89%
**74
99%
IMR 4451 Enduron
<<locked>>
86%
55970
90%
**67
100%
IMR 4831
<<locked>>
94%
55767
89%
**94
100%
IMR 4955 Enduron
<<locked>>
97%
56014
90%
**87
98%
IMR 7828 SSC
<<locked>>
97%
55506
89%
**92
98%
Lovex S065
<<locked>>
87%
55593
89%
**54
100%
Lovex S070
<<locked>>
89%
55753
89%
**77
100%
Lovex S071
<<locked>>
97%
46195
74%
**49
99%
Norma 204 👍
<<locked>>
90%
55506
89%
**17
99%
[Norma 217]*
<<locked>>
97%
32227
52%
**88
94%
Norma MRP 👍
<<locked>>
96%
55651
89%
**08
100%
Norma URP
<<locked>>
89%
55927
90%
**10
100%
Ramshot Grand
<<locked>>
95%
55637
89%
**02
98%
Ramshot Hunter 👍
<<locked>>
90%
55637
89%
**30
100%
Ramshot Magnum
<<locked>>
97%
52083
84%
**17
99%
ReloadSwiss RS 14
<<locked>>
97%
36260
58%
**67
100%
ReloadSwiss RS 60
<<locked>>
84%
55912
90%
**49
100%
ReloadSwiss RS 62
<<locked>>
89%
56101
90%
**40
100%
ReloadSwiss RS 70
<<locked>>
90%
55840
90%
**85
100%
ReloadSwiss RS 76
<<locked>>
97%
43642
70%
**61
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
38870
62%
**36
92%
Rottweil R 903
<<locked>>
84%
55376
89%
**44
100%
Rottweil R 904
<<locked>>
93%
55434
89%
**84
98%
Rottweil R 905 👍
<<locked>>
95%
56086
90%
**43
99%
Rottweil R 907
<<locked>>
87%
55811
89%
**61
99%
SNPE Vectan SP 11
<<locked>>
84%
56028
90%
**90
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
56086
90%
**33
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
55448
89%
**15
100%
Shooters World Long Rifle
<<locked>>
87%
55593
89%
**54
100%
Somchem S355
<<locked>>
84%
55941
90%
**51
100%
Somchem S361
<<locked>>
92%
55535
89%
**57
97%
Somchem S365
<<locked>>
92%
56086
90%
**20
100%
Somchem S385
<<locked>>
95%
56028
90%
**10
99%
Vihtavuori N135
<<locked>>
85%
55492
89%
**52
100%
Vihtavuori N150
<<locked>>
89%
55637
89%
**08
100%
Vihtavuori N160
<<locked>>
87%
55637
89%
**71
100%
Vihtavuori N165
<<locked>>
97%
50227
81%
**08
99%
Vihtavuori N550
<<locked>>
87%
55985
90%
**17
100%
Vihtavuori N555
<<locked>>
96%
56086
90%
**49
100%
Vihtavuori N560
<<locked>>
97%
53766
86%
**76
97%
Vihtavuori N565
<<locked>>
97%
46151
74%
**31
96%
[Vihtavuori N568]*
<<locked>>
97%
40567
65%
**59
92%
Winchester 6.5 StaBALL
<<locked>>
88%
55361
89%
**48
100%
Winchester 760
<<locked>>
85%
55506
89%
**23
100%
Winchester StaBALL HD
<<locked>>
97%
47050
75%
**66
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
52243
84%
**92
100%
[ADI AR 2209]*
<<locked>>
81%
36680
59%
**92
94%
[ADI AR 2213]*
<<locked>>
81%
32953
53%
**20
90%
[ADI AR 2217]*
<<locked>>
90%
33098
53%
**10
90%
[ADI AR 2225]*
<<locked>>
88%
27615
44%
**05
90%
Accurate 2700
<<locked>>
81%
50372
81%
**39
99%
Accurate 3100
<<locked>>
81%
33098
53%
**93
96%
Accurate 4350
<<locked>>
81%
43787
70%
**16
100%
[Accurate MAGPRO]*
<<locked>>
86%
36535
59%
**34
90%
Alliant Reloder-16
<<locked>>
81%
41930
67%
**26
100%
Alliant Reloder-17
<<locked>>
81%
47747
77%
**35
100%
[Alliant Reloder-19]*
<<locked>>
81%
36579
59%
**88
94%
[Alliant Reloder-22]*
<<locked>>
81%
32619
52%
**36
93%
Alliant Reloder-23
<<locked>>
81%
31517
51%
**13
99%
[Alliant Reloder-25]*
<<locked>>
81%
27847
45%
**18
94%
Alliant Reloder-26
<<locked>>
81%
34069
55%
**41
98%
[Bofors RP15]*
<<locked>>
81%
30545
49%
**74
91%
[Bofors RP30]*
<<locked>>
87%
30603
49%
**03
90%
[Bofors RP5]*
<<locked>>
81%
32619
52%
**36
93%
Bofors RP7
<<locked>>
81%
47398
76%
**26
98%
[Hodgdon H1000]*
<<locked>>
90%
33098
53%
**10
90%
Hodgdon H414
<<locked>>
81%
49052
79%
**28
99%
Hodgdon H4350
<<locked>>
81%
40306
65%
**15
97%
[Hodgdon H4831]*
<<locked>>
83%
33475
54%
**93
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
34490
55%
**16
91%
Hodgdon Hybrid 100V
<<locked>>
81%
39479
63%
**15
100%
Hodgdon LVR
<<locked>>
81%
45890
74%
**56
100%
[Hodgdon Retumbo]*
<<locked>>
88%
27615
44%
**05
90%
Hodgdon Superperformance
<<locked>>
81%
44353
71%
**79
98%
Hodgdon VARGET
<<locked>>
81%
51285
82%
**82
100%
IMR 4064
<<locked>>
81%
51097
82%
**62
100%
IMR 4166 Enduron
<<locked>>
81%
49951
80%
**49
99%
IMR 4350
<<locked>>
81%
42351
68%
**51
97%
IMR 4451 Enduron
<<locked>>
81%
48312
77%
**39
99%
IMR 4831
<<locked>>
81%
38247
61%
**02
99%
[IMR 4955 Enduron]*
<<locked>>
81%
34882
56%
**97
91%
[IMR 7828 SSC]*
<<locked>>
81%
33446
54%
**46
91%
Lovex S065
<<locked>>
81%
45963
74%
**97
99%
Lovex S070
<<locked>>
81%
44164
71%
**90
98%
[Lovex S071]*
<<locked>>
81%
28906
46%
**82
94%
Norma 204
<<locked>>
81%
42148
68%
**90
96%
[Norma 217]*
<<locked>>
92%
27992
45%
**57
90%
Norma MRP
<<locked>>
81%
33997
55%
**02
95%
Norma URP
<<locked>>
81%
42917
69%
**10
100%
[Ramshot Grand]*
<<locked>>
81%
34476
55%
**85
92%
Ramshot Hunter
<<locked>>
81%
41698
67%
**97
98%
[Ramshot Magnum]*
<<locked>>
81%
30168
48%
**60
92%
ReloadSwiss RS 14
<<locked>>
94%
35027
56%
**40
100%
ReloadSwiss RS 60
<<locked>>
81%
50444
81%
**74
100%
ReloadSwiss RS 62
<<locked>>
81%
43627
70%
**46
100%
ReloadSwiss RS 70
<<locked>>
81%
41597
67%
**46
99%
[ReloadSwiss RS 76]*
<<locked>>
83%
27920
45%
**47
90%
[ReloadSwiss RS 80]*
<<locked>>
94%
35418
57%
**54
90%
Rottweil R 903
<<locked>>
81%
50836
82%
**79
100%
[Rottweil R 904]*
<<locked>>
81%
38101
61%
**79
94%
Rottweil R 905
<<locked>>
81%
36071
58%
**85
95%
Rottweil R 907
<<locked>>
81%
47398
76%
**26
98%
SNPE Vectan SP 11
<<locked>>
81%
51648
83%
**31
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
51547
83%
**74
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
45020
72%
**48
98%
Shooters World Long Rifle
<<locked>>
81%
45963
74%
**97
99%
Somchem S355
<<locked>>
81%
50865
82%
**79
100%
[Somchem S361]*
<<locked>>
81%
38885
62%
**69
93%
Somchem S365
<<locked>>
81%
39479
63%
**67
100%
Somchem S385
<<locked>>
81%
36666
59%
**69
96%
Vihtavuori N135
<<locked>>
81%
49588
80%
**74
100%
Vihtavuori N150
<<locked>>
81%
44063
71%
**41
100%
Vihtavuori N160
<<locked>>
81%
46209
74%
**30
100%
[Vihtavuori N165]*
<<locked>>
81%
30980
50%
**28
93%
Vihtavuori N550
<<locked>>
81%
46847
75%
**75
100%
Vihtavuori N555
<<locked>>
81%
35186
56%
**85
99%
[Vihtavuori N560]*
<<locked>>
81%
33185
53%
**56
90%
[Vihtavuori N565]*
<<locked>>
85%
32198
52%
**29
90%
[Vihtavuori N568]*
<<locked>>
94%
36898
59%
**74
90%
Winchester 6.5 StaBALL
<<locked>>
81%
43250
69%
**67
100%
Winchester 760
<<locked>>
81%
49052
79%
**28
99%
Winchester StaBALL HD
<<locked>>
81%
25686
41%
**23
99%

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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