top of page

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

Recommended Powder(s): ADI AR 2217, ADI AR 2225, Hodgdon H1000, Hodgdon Retumbo, Vihtavuori N565

.300 Rem. Ultra 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 Rem. Ultra Mag load data
Case Length (l3):
2.850" | 72.4mm
Cartridge Length (C.O.L.):
3.544" | 90.0mm
Seated Depth:
0.716" | 18.2mm
Shank Seated Depth:
0.716" | 18.2mm
Case Capacity:
112.5 Grains of Water | 7.30 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
64977 psi | 4480 bar
LID:
LID_B10916_C374
Last updated:
2025-02-02

Load data for 100 loads in caliber .300 Rem. Ultra Mag with .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets bullet and 50 powders such as ADI AR 2217, ADI AR 2225, Hodgdon H1000, Hodgdon Retumbo, Vihtavuori N565. 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".

  • No data yet

  • 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.

    .

    Loading_icon.gif

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 2209
<<locked>>
85%
57928
89%
**72
100%
ADI AR 2213
<<locked>>
88%
58465
90%
**15
100%
ADI AR 2217 👍
<<locked>>
97%
57740
89%
**05
100%
ADI AR 2218
<<locked>>
97%
51097
79%
**92
97%
ADI AR 2225 👍
<<locked>>
97%
53011
82%
**69
100%
Accurate 3100
<<locked>>
88%
57957
89%
**07
100%
[Accurate 8700]*
<<locked>>
97%
40770
63%
**13
93%
Accurate MAGPRO
<<locked>>
88%
58160
90%
**18
99%
Alliant Reloder-19
<<locked>>
86%
58175
90%
**72
100%
Alliant Reloder-22
<<locked>>
88%
58421
90%
**02
100%
Alliant Reloder-23
<<locked>>
89%
58131
89%
**40
100%
Alliant Reloder-25
<<locked>>
93%
58291
90%
**02
100%
Alliant Reloder-26
<<locked>>
84%
57798
89%
**12
100%
Alliant Reloder-33
<<locked>>
97%
56565
87%
**38
98%
Alliant Reloder-50
<<locked>>
97%
48921
75%
**17
96%
Hodgdon H1000 👍
<<locked>>
97%
57740
89%
**05
100%
Hodgdon H4350
<<locked>>
84%
58479
90%
**23
100%
Hodgdon H4831
<<locked>>
91%
57928
89%
**53
100%
Hodgdon H4831 SC
<<locked>>
87%
58247
90%
**62
100%
Hodgdon Hybrid 100V
<<locked>>
83%
57957
89%
**77
100%
Hodgdon Retumbo 👍
<<locked>>
97%
53011
82%
**69
100%
Hodgdon TrailBoss
<<locked>>
97%
36419
56%
**32
100%
IMR 4831
<<locked>>
85%
58291
90%
**13
100%
IMR 4955 Enduron
<<locked>>
89%
58073
89%
**36
100%
IMR 7828 SSC
<<locked>>
87%
58276
90%
**25
100%
IMR 7977 Enduron
<<locked>>
93%
57928
89%
**90
95%
IMR 8133 Enduron
<<locked>>
97%
49414
76%
**07
99%
[Lovex D100]*
<<locked>>
97%
57783
89%
**26
94%
Lovex S071
<<locked>>
93%
57957
89%
**07
100%
Norma 217
<<locked>>
97%
50009
77%
**26
100%
Norma MRP
<<locked>>
86%
57972
89%
**15
100%
[Ramshot LRT]*
<<locked>>
97%
50923
78%
**17
92%
Ramshot Magnum
<<locked>>
88%
57928
89%
**66
100%
ReloadSwiss RS 14
<<locked>>
97%
37246
57%
**72
100%
ReloadSwiss RS 76
<<locked>>
93%
58363
90%
**81
100%
ReloadSwiss RS 80
<<locked>>
95%
58160
90%
**58
100%
Rottweil R 904
<<locked>>
85%
58146
89%
**40
100%
Rottweil R 905
<<locked>>
86%
58320
90%
**69
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
42917
66%
**33
94%
Somchem S361
<<locked>>
84%
57812
89%
**07
100%
Somchem S385
<<locked>>
85%
58117
89%
**33
100%
[Vihtavuori 24N41]*
<<locked>>
97%
51358
79%
**84
92%
Vihtavuori N165
<<locked>>
91%
57972
89%
**13
100%
Vihtavuori N170
<<locked>>
97%
53998
83%
**90
96%
Vihtavuori N555
<<locked>>
86%
58262
90%
**36
100%
Vihtavuori N560
<<locked>>
88%
57812
89%
**28
100%
Vihtavuori N565 👍
<<locked>>
91%
57914
89%
**95
100%
Vihtavuori N568
<<locked>>
95%
58146
89%
**48
99%
Vihtavuori N570
<<locked>>
96%
58218
90%
**84
98%
Winchester StaBALL HD
<<locked>>
89%
58421
90%
**25
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
50169
77%
**57
100%
ADI AR 2213
<<locked>>
81%
45469
70%
**15
99%
ADI AR 2217
<<locked>>
81%
34185
53%
**69
95%
[ADI AR 2218]*
<<locked>>
86%
35462
55%
**44
90%
ADI AR 2225
<<locked>>
81%
31763
49%
**59
98%
Accurate 3100
<<locked>>
81%
46775
72%
**43
100%
[Accurate 8700]*
<<locked>>
92%
35041
54%
**82
90%
Accurate MAGPRO
<<locked>>
81%
45745
70%
**21
97%
Alliant Reloder-19
<<locked>>
81%
49951
77%
**48
100%
Alliant Reloder-22
<<locked>>
81%
46398
71%
**18
99%
Alliant Reloder-23
<<locked>>
81%
44976
69%
**56
100%
Alliant Reloder-25
<<locked>>
81%
39117
60%
**03
100%
Alliant Reloder-26
<<locked>>
81%
51227
79%
**23
100%
[Alliant Reloder-33]*
<<locked>>
82%
33025
51%
**85
90%
[Alliant Reloder-50]*
<<locked>>
87%
34229
53%
**15
90%
Hodgdon H1000
<<locked>>
81%
34185
53%
**69
95%
Hodgdon H4350
<<locked>>
81%
53330
82%
**54
100%
Hodgdon H4831
<<locked>>
81%
42482
65%
**03
97%
Hodgdon H4831 SC
<<locked>>
81%
47239
73%
**92
98%
Hodgdon Hybrid 100V
<<locked>>
81%
54375
84%
**35
100%
Hodgdon Retumbo
<<locked>>
81%
31763
49%
**59
98%
Hodgdon TrailBoss
<<locked>>
87%
31691
49%
**44
100%
IMR 4831
<<locked>>
81%
51808
80%
**21
100%
IMR 4955 Enduron
<<locked>>
81%
46122
71%
**49
98%
IMR 7828 SSC
<<locked>>
81%
47021
72%
**44
99%
[IMR 7977 Enduron]*
<<locked>>
83%
41510
64%
**18
90%
[IMR 8133 Enduron]*
<<locked>>
81%
29269
45%
**80
93%
[Lovex D100]*
<<locked>>
90%
44875
69%
**13
90%
Lovex S071
<<locked>>
81%
40538
62%
**34
100%
Norma 217
<<locked>>
81%
29559
45%
**13
96%
Norma MRP
<<locked>>
81%
49240
76%
**87
100%
[Ramshot LRT]*
<<locked>>
94%
46702
72%
**48
90%
Ramshot Magnum
<<locked>>
81%
44353
68%
**72
100%
ReloadSwiss RS 14
<<locked>>
83%
30618
47%
**44
100%
ReloadSwiss RS 76
<<locked>>
81%
37869
58%
**39
99%
[ReloadSwiss RS 80]*
<<locked>>
81%
34838
54%
**28
94%
Rottweil R 904
<<locked>>
81%
51082
79%
**38
99%
Rottweil R 905
<<locked>>
81%
49893
77%
**41
100%
[SNPE Vectan SP 13]*
<<locked>>
91%
35157
54%
**72
90%
Somchem S361
<<locked>>
81%
52344
81%
**25
99%
Somchem S385
<<locked>>
81%
50546
78%
**21
100%
[Vihtavuori 24N41]*
<<locked>>
94%
47268
73%
**18
90%
Vihtavuori N165
<<locked>>
81%
42786
66%
**84
99%
[Vihtavuori N170]*
<<locked>>
84%
36492
56%
**59
90%
Vihtavuori N555
<<locked>>
81%
50096
77%
**25
100%
Vihtavuori N560
<<locked>>
81%
46470
72%
**44
98%
Vihtavuori N565
<<locked>>
81%
41017
63%
**20
97%
[Vihtavuori N568]*
<<locked>>
81%
35955
55%
**51
94%
[Vihtavuori N570]*
<<locked>>
81%
34316
53%
**25
90%
Winchester StaBALL HD
<<locked>>
81%
43497
67%
**25
100%

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

bottom of page