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Load data for .300 Rem. Ultra Mag + .308 | 150gr | CutEdge Maximus

Recommended Powder(s): ADI AR 2209, Alliant Reloder-19, Norma MRP, Rottweil R 905, Somchem S385

.300 Rem. Ultra Mag + .308 | 150gr | CutEdge Maximus

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 150gr | CutEdge Maximus
Manufacturer SKU:
Maximus
Bullet Weight:
150gr | 9.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.248" | 31.7mm
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:
0.554" | 14.1mm
Shank Seated Depth:
0.318" | 8.1mm
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_B8479_C374
Last updated:
2025-01-01
Recommended Twist Rate:
1:12 - 1:10

Load data for 128 loads in caliber .300 Rem. Ultra Mag with .308 | 150gr | CutEdge Maximus bullet and 64 powders such as ADI AR 2209, Alliant Reloder-19, Norma MRP, Rottweil R 905, Somchem S385. 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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    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.

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>>
92%
58204
90%
**23
99%
ADI AR 2213
<<locked>>
95%
58117
89%
**50
99%
ADI AR 2217
<<locked>>
97%
45136
69%
**00
96%
ADI AR 2225
<<locked>>
97%
40785
63%
**58
98%
Accurate 3100
<<locked>>
95%
58392
90%
**48
100%
Accurate 4350
<<locked>>
87%
58320
90%
**87
100%
Accurate MAGPRO
<<locked>>
95%
57972
89%
**43
97%
Alliant Reloder-16
<<locked>>
88%
58392
90%
**30
100%
Alliant Reloder-17
<<locked>>
83%
58073
89%
**23
100%
Alliant Reloder-19 👍
<<locked>>
92%
58218
90%
**20
99%
Alliant Reloder-22
<<locked>>
95%
58204
90%
**36
99%
Alliant Reloder-23
<<locked>>
96%
58465
90%
**00
100%
Alliant Reloder-25
<<locked>>
97%
51822
80%
**61
100%
Alliant Reloder-26
<<locked>>
92%
58015
89%
**63
100%
Hodgdon H1000
<<locked>>
97%
45136
69%
**00
96%
Hodgdon H4350
<<locked>>
90%
58247
90%
**68
100%
Hodgdon H4831
<<locked>>
97%
57217
88%
**77
98%
Hodgdon H4831 SC
<<locked>>
93%
58146
89%
**87
98%
Hodgdon Hybrid 100V
<<locked>>
90%
58160
90%
**45
100%
Hodgdon LVR
<<locked>>
85%
58189
90%
**94
100%
Hodgdon Retumbo
<<locked>>
97%
40785
63%
**58
98%
Hodgdon Superperformance
<<locked>>
85%
57885
89%
**23
100%
Hodgdon TrailBoss
<<locked>>
96%
35085
54%
**75
100%
IMR 4166 Enduron
<<locked>>
84%
58247
90%
**48
100%
IMR 4350
<<locked>>
88%
58131
89%
**61
100%
IMR 4451 Enduron
<<locked>>
84%
57914
89%
**54
100%
IMR 4831
<<locked>>
92%
58131
89%
**64
100%
IMR 4955 Enduron
<<locked>>
95%
58378
90%
**64
98%
IMR 7828 SSC
<<locked>>
94%
57740
89%
**53
99%
[IMR 8133 Enduron]*
<<locked>>
97%
36405
56%
**46
93%
Lovex S065
<<locked>>
86%
58421
90%
**45
100%
Lovex S070
<<locked>>
87%
58146
89%
**61
100%
Lovex S071
<<locked>>
97%
51619
79%
**56
100%
Norma 204
<<locked>>
88%
58421
90%
**00
99%
Norma 217
<<locked>>
97%
36216
56%
**62
95%
Norma MRP 👍
<<locked>>
93%
57798
89%
**63
100%
Norma URP
<<locked>>
87%
57928
89%
**84
100%
Ramshot Hunter
<<locked>>
88%
58479
90%
**10
100%
Ramshot Magnum
<<locked>>
95%
58334
90%
**07
100%
ReloadSwiss RS 14
<<locked>>
97%
36085
56%
**24
100%
ReloadSwiss RS 60
<<locked>>
84%
58102
89%
**43
100%
ReloadSwiss RS 62
<<locked>>
86%
58349
90%
**00
100%
ReloadSwiss RS 70
<<locked>>
87%
57899
89%
**46
100%
ReloadSwiss RS 76
<<locked>>
97%
50995
78%
**00
100%
ReloadSwiss RS 80
<<locked>>
97%
46499
72%
**76
95%
Rottweil R 904
<<locked>>
91%
58131
89%
**64
99%
Rottweil R 905 👍
<<locked>>
92%
58378
90%
**10
99%
Rottweil R 907
<<locked>>
85%
58218
90%
**58
100%
SNPE Vectan Tubal 7000
<<locked>>
87%
58189
90%
**05
100%
Shooters World Long Rifle
<<locked>>
86%
58421
90%
**45
100%
Somchem S361
<<locked>>
90%
57943
89%
**25
98%
Somchem S365
<<locked>>
89%
57885
89%
**81
100%
Somchem S385 👍
<<locked>>
92%
58407
90%
**77
100%
Vihtavuori N135
<<locked>>
84%
58233
90%
**53
100%
Vihtavuori N150
<<locked>>
88%
57943
89%
**89
100%
Vihtavuori N160
<<locked>>
85%
58378
90%
**54
100%
Vihtavuori N165
<<locked>>
97%
57145
88%
**28
100%
Vihtavuori N550
<<locked>>
85%
58378
90%
**94
100%
Vihtavuori N555
<<locked>>
93%
58276
90%
**04
100%
Vihtavuori N560
<<locked>>
95%
58436
90%
**73
98%
Vihtavuori N565
<<locked>>
97%
53954
83%
**68
98%
Vihtavuori N568
<<locked>>
97%
47311
73%
**86
95%
Winchester 6.5 StaBALL
<<locked>>
86%
57943
89%
**02
100%
Winchester StaBALL HD
<<locked>>
97%
57740
89%
**89
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
39842
61%
**82
95%
[ADI AR 2213]*
<<locked>>
81%
35447
55%
**97
92%
[ADI AR 2217]*
<<locked>>
88%
33141
51%
**08
90%
[ADI AR 2225]*
<<locked>>
86%
27847
43%
**90
90%
Accurate 3100
<<locked>>
81%
35317
54%
**35
97%
Accurate 4350
<<locked>>
81%
47819
74%
**27
100%
[Accurate MAGPRO]*
<<locked>>
83%
37014
57%
**36
90%
Alliant Reloder-16
<<locked>>
81%
45803
70%
**33
100%
Alliant Reloder-17
<<locked>>
81%
53577
82%
**54
100%
Alliant Reloder-19
<<locked>>
81%
39929
61%
**72
95%
[Alliant Reloder-22]*
<<locked>>
81%
35404
54%
**97
93%
Alliant Reloder-23
<<locked>>
81%
33982
52%
**64
99%
[Alliant Reloder-25]*
<<locked>>
81%
29530
45%
**62
94%
Alliant Reloder-26
<<locked>>
81%
37753
58%
**15
99%
[Hodgdon H1000]*
<<locked>>
88%
33141
51%
**08
90%
Hodgdon H4350
<<locked>>
81%
43569
67%
**05
97%
[Hodgdon H4831]*
<<locked>>
82%
34055
52%
**08
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
37188
57%
**87
92%
Hodgdon Hybrid 100V
<<locked>>
81%
43178
66%
**12
100%
Hodgdon LVR
<<locked>>
81%
50357
78%
**72
100%
[Hodgdon Retumbo]*
<<locked>>
86%
27847
43%
**90
90%
Hodgdon Superperformance
<<locked>>
81%
50038
77%
**99
99%
Hodgdon TrailBoss
<<locked>>
81%
27963
43%
**14
100%
IMR 4166 Enduron
<<locked>>
81%
53592
82%
**72
100%
IMR 4350
<<locked>>
81%
45774
70%
**51
98%
IMR 4451 Enduron
<<locked>>
81%
52011
80%
**63
99%
IMR 4831
<<locked>>
81%
40973
63%
**82
99%
[IMR 4955 Enduron]*
<<locked>>
81%
37434
58%
**64
92%
[IMR 7828 SSC]*
<<locked>>
81%
36376
56%
**23
92%
[IMR 8133 Enduron]*
<<locked>>
94%
32416
50%
**38
90%
Lovex S065
<<locked>>
81%
49197
76%
**00
100%
Lovex S070
<<locked>>
81%
47456
73%
**87
99%
[Lovex S071]*
<<locked>>
81%
30153
46%
**00
94%
Norma 204
<<locked>>
81%
46122
71%
**94
97%
[Norma 217]*
<<locked>>
90%
28355
44%
**30
90%
Norma MRP
<<locked>>
81%
37492
58%
**72
96%
Norma URP
<<locked>>
81%
46760
72%
**10
100%
Ramshot Hunter
<<locked>>
81%
45861
71%
**04
99%
[Ramshot Magnum]*
<<locked>>
81%
32909
51%
**18
93%
ReloadSwiss RS 14
<<locked>>
81%
28500
44%
**54
100%
ReloadSwiss RS 60
<<locked>>
81%
51735
80%
**45
100%
ReloadSwiss RS 62
<<locked>>
81%
48037
74%
**33
100%
ReloadSwiss RS 70
<<locked>>
81%
46412
71%
**63
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
28355
44%
**26
90%
[ReloadSwiss RS 80]*
<<locked>>
90%
35172
54%
**17
90%
Rottweil R 904
<<locked>>
81%
41292
64%
**69
95%
Rottweil R 905
<<locked>>
81%
39030
60%
**59
95%
Rottweil R 907
<<locked>>
81%
50560
78%
**30
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
48356
74%
**44
99%
Shooters World Long Rifle
<<locked>>
81%
49197
76%
**00
100%
[Somchem S361]*
<<locked>>
81%
42177
65%
**49
94%
Somchem S365
<<locked>>
81%
43758
67%
**58
100%
Somchem S385
<<locked>>
81%
39595
61%
**43
96%
Vihtavuori N135
<<locked>>
81%
52591
81%
**84
100%
Vihtavuori N150
<<locked>>
81%
46949
72%
**31
100%
Vihtavuori N160
<<locked>>
81%
50430
78%
**36
100%
[Vihtavuori N165]*
<<locked>>
81%
33112
51%
**72
93%
Vihtavuori N550
<<locked>>
81%
51242
79%
**82
100%
Vihtavuori N555
<<locked>>
81%
38058
59%
**46
99%
[Vihtavuori N560]*
<<locked>>
81%
35737
55%
**10
91%
[Vihtavuori N565]*
<<locked>>
83%
33228
51%
**35
90%
[Vihtavuori N568]*
<<locked>>
90%
36564
56%
**43
90%
Winchester 6.5 StaBALL
<<locked>>
81%
48008
74%
**54
100%
Winchester StaBALL HD
<<locked>>
81%
29907
46%
**71
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.

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