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Load data for .375 Rem. Ultra Mag + .376 | 250gr | H&N RN HS

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Recommended Powder(s):

.375 Rem. Ultra Mag + .376 | 250gr | H&N RN HS

Load Specifications

Bullet:
.376 | 250gr | H&N RN HS
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.376" | 9.55mm
Bullet Length:
0.951" | 24.2mm
Caliber:
.375 Rem. Ultra Mag
Case Length (l3):
2.850" | 72.4mm
Cartridge Length (C.O.L.):
3.546" | 90.1mm
Seated Depth:
0.255" | 6.5mm
Shank Seated Depth:
0.255" | 6.5mm
Case Capacity:
117.0 Grains of Water | 7.60 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B7493_C557

>> Use the Personalized Load Calculator further below to adjust input parameters. 

Load data for 196 loads in caliber .375 Rem. Ultra Mag with .376 | 250gr | H&N RN HS bullet and 98 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".

    • A load must fulfill certain criteria to be listed in the default view below - see here.

    • Our load data might deviate from other sources - see the most common reasons here

    • All loads are based on the bullet and case dimensions shown under "Load Specifications" - see here what to do if you deviate.

    • You can set your specifications in the "Personalized Load Calculator".

    • Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric) 

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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 2206H
<<locked>>
85%
57130
90%
**25
100%
ADI AR 2208
<<locked>>
90%
57000
89%
**08
100%
ADI AR 2209
<<locked>>
97%
49110
77%
**56
96%
[ADI AR 2213]*
<<locked>>
97%
43584
68%
**74
93%
Accurate 2200
<<locked>>
83%
57000
89%
**95
100%
Accurate 2495
<<locked>>
84%
57305
90%
**69
100%
Accurate 2520
<<locked>>
83%
57334
90%
**92
100%
Accurate 2700
<<locked>>
91%
57159
90%
**56
98%
Accurate 3100
<<locked>>
97%
40727
64%
**85
97%
Accurate 4064
<<locked>>
89%
56927
89%
**85
100%
Accurate 4350
<<locked>>
97%
57217
90%
**71
100%
Alliant Reloder- TS 15.5
<<locked>>
90%
56942
89%
**18
100%
Alliant Reloder-15
<<locked>>
88%
56942
89%
**38
100%
Alliant Reloder-16 👍
<<locked>>
97%
55158
86%
**87
100%
Alliant Reloder-17
<<locked>>
93%
57276
90%
**20
100%
Alliant Reloder-19
<<locked>>
97%
48124
75%
**40
96%
[Alliant Reloder-22]*
<<locked>>
97%
41800
65%
**61
94%
Alliant Reloder-23
<<locked>>
97%
39204
61%
**21
99%
Alliant Reloder-25
<<locked>>
97%
34316
54%
**16
95%
Alliant Reloder-26
<<locked>>
97%
44208
69%
**82
99%
Baschieri & Pellagri 107
<<locked>>
85%
57029
89%
**31
100%
Hodgdon BL-C2
<<locked>>
83%
57348
90%
**28
100%
Hodgdon CFE223
<<locked>>
88%
57203
90%
**71
100%
Hodgdon H380
<<locked>>
89%
57188
90%
**35
100%
Hodgdon H414 👍
<<locked>>
92%
56985
89%
**81
99%
Hodgdon H4350
<<locked>>
97%
53403
84%
**69
98%
[Hodgdon H4831 SC]*
<<locked>>
97%
45774
72%
**64
93%
Hodgdon Hybrid 100V
<<locked>>
97%
51445
81%
**53
100%
Hodgdon LVR
<<locked>>
94%
57101
89%
**64
100%
Hodgdon Superperformance
<<locked>>
94%
57203
90%
**10
99%
Hodgdon VARGET
<<locked>>
90%
57000
89%
**08
100%
Hodgdon TrailBoss
<<locked>>
96%
33692
53%
**16
100%
IMR 3031
<<locked>>
87%
56927
89%
**92
100%
IMR 4064
<<locked>>
91%
57116
90%
**02
100%
IMR 4166 Enduron
<<locked>>
92%
57203
90%
**92
99%
IMR 4350
<<locked>>
97%
56753
89%
**22
99%
IMR 4451 Enduron
<<locked>>
92%
56811
89%
**08
99%
IMR 4831
<<locked>>
97%
48312
76%
**26
100%
IMR 4895
<<locked>>
87%
57261
90%
**48
100%
[IMR 4955 Enduron]*
<<locked>>
97%
45614
71%
**35
93%
[IMR 7828 SSC]*
<<locked>>
97%
44135
69%
**90
93%
IMR 8208 XBR
<<locked>>
84%
56985
89%
**85
100%
Lovex D073.6
<<locked>>
85%
57334
90%
**92
100%
Lovex S060
<<locked>>
85%
57043
89%
**62
100%
Lovex S062
<<locked>>
89%
57101
89%
**89
100%
Lovex S065
<<locked>>
95%
57145
90%
**08
100%
Lovex S070
<<locked>>
96%
57377
90%
**35
99%
[Lovex S071]*
<<locked>>
97%
33315
52%
**31
94%
Norma 201
<<locked>>
86%
57043
89%
**89
100%
Norma 202
<<locked>>
85%
56942
89%
**72
100%
Norma 203B
<<locked>>
88%
57319
90%
**38
100%
Norma 204
<<locked>>
97%
57232
90%
**64
98%
Norma MRP
<<locked>>
97%
44034
69%
**40
97%
Norma URP
<<locked>>
97%
56623
89%
**67
100%
Ramshot Big Game
<<locked>>
88%
57058
89%
**48
100%
Ramshot Hunter
<<locked>>
97%
56130
88%
**74
99%
[Ramshot Magnum]*
<<locked>>
97%
40306
63%
**02
94%
Ramshot TAC
<<locked>>
84%
57406
90%
**12
100%
Ramshot Wild Boar
<<locked>>
84%
57348
90%
**25
100%
ReloadSwiss RS 14
<<locked>>
96%
34084
53%
**52
100%
ReloadSwiss RS 50
<<locked>>
89%
57377
90%
**18
99%
ReloadSwiss RS 52
<<locked>>
88%
57014
89%
**48
100%
ReloadSwiss RS 60
<<locked>>
94%
57014
89%
**33
100%
ReloadSwiss RS 62 👍
<<locked>>
96%
57261
90%
**94
100%
ReloadSwiss RS 70
<<locked>>
97%
57188
90%
**36
100%
Rottweil R 901
<<locked>>
84%
56956
89%
**59
100%
Rottweil R 902
<<locked>>
88%
57421
90%
**82
100%
Rottweil R 903
<<locked>>
92%
57000
89%
**18
100%
Rottweil R 904
<<locked>>
97%
50459
79%
**26
95%
Rottweil R 905
<<locked>>
97%
46441
73%
**20
96%
Rottweil R 907
<<locked>>
94%
57043
89%
**15
99%
SNPE Vectan SP 11
<<locked>>
90%
57087
89%
**54
100%
SNPE Vectan SP 7
<<locked>>
84%
57348
90%
**12
100%
SNPE Vectan SP 9
<<locked>>
86%
57130
90%
**15
100%
SNPE Vectan Tubal 3000
<<locked>>
85%
57319
90%
**07
100%
SNPE Vectan Tubal 5000
<<locked>>
91%
57334
90%
**00
100%
SNPE Vectan Tubal 7000
<<locked>>
95%
57058
89%
**62
99%
Shooters World Long Rifle
<<locked>>
95%
57145
90%
**08
100%
Shooters World Match Rifle
<<locked>>
85%
57334
90%
**92
100%
Shooters World Precision
<<locked>>
89%
57101
89%
**89
100%
Somchem S335
<<locked>>
86%
57334
90%
**10
100%
Somchem S341
<<locked>>
84%
56855
89%
**89
100%
Somchem S355
<<locked>>
92%
57392
90%
**18
100%
Somchem S361
<<locked>>
97%
52620
82%
**20
95%
Somchem S365
<<locked>>
97%
51953
81%
**22
100%
Somchem S385
<<locked>>
97%
47398
74%
**00
97%
Vihtavuori N133
<<locked>>
87%
57290
90%
**90
100%
Vihtavuori N135
<<locked>>
93%
57101
89%
**40
100%
Vihtavuori N140
<<locked>>
88%
57188
90%
**46
100%
Vihtavuori N150
<<locked>>
97%
57392
90%
**76
100%
Vihtavuori N160
<<locked>>
94%
57174
90%
**31
100%
[Vihtavuori N165]*
<<locked>>
97%
38885
61%
**23
94%
Vihtavuori N540
<<locked>>
88%
57116
89%
**79
100%
Vihtavuori N550 👍
<<locked>>
94%
57174
90%
**77
100%
Vihtavuori N555
<<locked>>
97%
43395
68%
**97
99%
Winchester 6.5 StaBALL
<<locked>>
95%
57188
90%
**99
100%
Winchester 760 👍
<<locked>>
92%
56985
89%
**81
99%
Winchester StaBALL HD
<<locked>>
97%
32227
50%
**28
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
50067
78%
**20
100%
ADI AR 2208
<<locked>>
81%
42308
66%
**75
99%
[ADI AR 2209]*
<<locked>>
87%
34185
54%
**44
90%
[ADI AR 2213]*
<<locked>>
94%
38711
61%
**62
90%
Accurate 2200
<<locked>>
81%
52576
82%
**30
100%
Accurate 2495
<<locked>>
81%
50676
79%
**87
100%
Accurate 2520
<<locked>>
81%
52678
83%
**33
100%
Accurate 2700
<<locked>>
81%
40379
63%
**87
95%
[Accurate 3100]*
<<locked>>
86%
26484
42%
**51
90%
Accurate 4064
<<locked>>
81%
42496
67%
**79
100%
Accurate 4350
<<locked>>
81%
31720
50%
**11
95%
Alliant Reloder- TS 15.5
<<locked>>
81%
42032
66%
**89
100%
Alliant Reloder-15
<<locked>>
81%
45339
71%
**54
99%
Alliant Reloder-16
<<locked>>
81%
32372
51%
**41
96%
Alliant Reloder-17
<<locked>>
81%
36709
58%
**75
99%
[Alliant Reloder-19]*
<<locked>>
86%
33388
52%
**31
90%
[Alliant Reloder-22]*
<<locked>>
90%
33025
52%
**67
90%
[Alliant Reloder-23]*
<<locked>>
81%
22582
35%
**59
91%
[Alliant Reloder-25]*
<<locked>>
91%
27543
43%
**16
90%
[Alliant Reloder-26]*
<<locked>>
83%
25730
40%
**06
90%
Baschieri & Pellagri 107
<<locked>>
81%
50009
78%
**33
100%
Hodgdon BL-C2
<<locked>>
81%
52808
83%
**72
100%
Hodgdon CFE223
<<locked>>
81%
44556
70%
**71
99%
Hodgdon H380
<<locked>>
81%
42525
67%
**95
98%
Hodgdon H414
<<locked>>
81%
37985
60%
**46
95%
[Hodgdon H4350]*
<<locked>>
81%
31357
49%
**39
91%
[Hodgdon H4831 SC]*
<<locked>>
92%
39001
61%
**36
90%
Hodgdon Hybrid 100V
<<locked>>
81%
29443
46%
**39
96%
Hodgdon LVR
<<locked>>
81%
35592
56%
**93
96%
[Hodgdon Superperformance]*
<<locked>>
81%
33924
53%
**70
92%
Hodgdon VARGET
<<locked>>
81%
41843
66%
**66
99%
Hodgdon TrailBoss
<<locked>>
88%
29907
47%
**40
100%
IMR 3031
<<locked>>
81%
46224
72%
**44
100%
IMR 4064
<<locked>>
81%
41292
65%
**49
99%
IMR 4166 Enduron
<<locked>>
81%
40843
64%
**16
96%
[IMR 4350]*
<<locked>>
81%
33083
52%
**82
92%
IMR 4451 Enduron
<<locked>>
81%
39059
61%
**97
95%
[IMR 4831]*
<<locked>>
81%
27731
43%
**87
93%
IMR 4895
<<locked>>
81%
46572
73%
**90
100%
[IMR 4955 Enduron]*
<<locked>>
92%
38305
60%
**84
90%
[IMR 7828 SSC]*
<<locked>>
93%
38435
60%
**72
90%
IMR 8208 XBR
<<locked>>
81%
52518
82%
**23
100%
Lovex D073.6
<<locked>>
81%
49400
77%
**94
100%
Lovex S060
<<locked>>
81%
49545
78%
**57
100%
Lovex S062
<<locked>>
81%
44077
69%
**02
100%
Lovex S065
<<locked>>
81%
35810
56%
**38
95%
[Lovex S070]*
<<locked>>
81%
33982
53%
**08
93%
[Lovex S071]*
<<locked>>
90%
26324
41%
**51
90%
Norma 201
<<locked>>
81%
48269
76%
**57
100%
Norma 202
<<locked>>
81%
49298
77%
**67
100%
Norma 203B
<<locked>>
81%
44701
70%
**41
100%
[Norma 204]*
<<locked>>
82%
33794
53%
**28
90%
[Norma MRP]*
<<locked>>
87%
30530
48%
**18
90%
Norma URP
<<locked>>
81%
32474
51%
**21
96%
Ramshot Big Game
<<locked>>
81%
44860
70%
**61
100%
[Ramshot Hunter]*
<<locked>>
81%
31691
50%
**02
93%
[Ramshot Magnum]*
<<locked>>
92%
32561
51%
**25
90%
Ramshot TAC
<<locked>>
81%
52518
82%
**43
99%
Ramshot Wild Boar
<<locked>>
81%
52402
82%
**56
100%
ReloadSwiss RS 14
<<locked>>
85%
28645
45%
**44
100%
ReloadSwiss RS 50
<<locked>>
81%
43091
68%
**92
97%
ReloadSwiss RS 52
<<locked>>
81%
44121
69%
**54
100%
ReloadSwiss RS 60
<<locked>>
81%
35563
56%
**59
99%
ReloadSwiss RS 62
<<locked>>
81%
31894
50%
**28
95%
[ReloadSwiss RS 70]*
<<locked>>
81%
31836
50%
**38
94%
Rottweil R 901
<<locked>>
81%
51895
81%
**94
100%
Rottweil R 902
<<locked>>
81%
45658
72%
**12
100%
Rottweil R 903
<<locked>>
81%
38914
61%
**33
99%
[Rottweil R 904]*
<<locked>>
87%
36347
57%
**57
90%
[Rottweil R 905]*
<<locked>>
87%
32619
51%
**28
90%
[Rottweil R 907]*
<<locked>>
81%
37130
58%
**61
94%
SNPE Vectan SP 11
<<locked>>
81%
40915
64%
**92
99%
SNPE Vectan SP 7
<<locked>>
81%
50705
79%
**10
99%
SNPE Vectan SP 9
<<locked>>
81%
48689
76%
**87
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
50038
78%
**15
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
41756
65%
**84
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
35128
55%
**79
94%
Shooters World Long Rifle
<<locked>>
81%
35810
56%
**38
95%
Shooters World Match Rifle
<<locked>>
81%
49400
77%
**94
100%
Shooters World Precision
<<locked>>
81%
44077
69%
**02
100%
Somchem S335
<<locked>>
81%
49385
77%
**12
100%
Somchem S341
<<locked>>
81%
50821
80%
**07
100%
Somchem S355
<<locked>>
81%
39769
62%
**36
99%
[Somchem S361]*
<<locked>>
89%
39073
61%
**80
90%
Somchem S365
<<locked>>
81%
28805
45%
**69
98%
[Somchem S385]*
<<locked>>
85%
30342
48%
**39
90%
Vihtavuori N133
<<locked>>
81%
47021
74%
**59
100%
Vihtavuori N135
<<locked>>
81%
38566
60%
**70
100%
Vihtavuori N140
<<locked>>
81%
45992
72%
**95
100%
Vihtavuori N150
<<locked>>
81%
33852
53%
**95
99%
Vihtavuori N160
<<locked>>
81%
35592
56%
**61
97%
[Vihtavuori N165]*
<<locked>>
91%
31633
50%
**62
90%
Vihtavuori N540
<<locked>>
81%
45527
71%
**08
100%
Vihtavuori N550
<<locked>>
81%
35882
56%
**97
97%
[Vihtavuori N555]*
<<locked>>
81%
24091
38%
**28
91%
Winchester 6.5 StaBALL
<<locked>>
81%
33678
53%
**11
98%
Winchester 760
<<locked>>
81%
37985
60%
**46
95%
[Winchester StaBALL HD]*
<<locked>>
85%
22452
35%
**98
90%

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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