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Load data for .375 Fl. Mag. N.E. + .375 | 300gr | Speer AGS SP

Recommended Powder(s): Alliant Reloder-17, Hodgdon Hybrid 100V, ReloadSwiss RS 60, SNPE Vectan SP 11, Somchem S365

.375 Fl. Mag. N.E. + .375 | 300gr | Speer AGS SP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 300gr | Speer AGS SP
Manufacturer SKU:
2470
Bullet Weight:
300gr | 19.4g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
1.220" | 31.0mm
Caliber:
.375 Fl. Mag. N.E. load data
Case Length (l3):
2.940" | 74.7mm
Cartridge Length (C.O.L.):
3.743" | 95.1mm
Seated Depth:
0.417" | 10.6mm
Shank Seated Depth:
0.417" | 10.6mm
Case Capacity:
94.1 Grains of Water | 6.11 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
47137 psi | 3250 bar
LID:
LID_B6247_C541
Last updated:
2025-01-01

Load data for 108 loads in caliber .375 Fl. Mag. N.E. with .375 | 300gr | Speer AGS SP bullet and 54 powders such as Alliant Reloder-17, Hodgdon Hybrid 100V, ReloadSwiss RS 60, SNPE Vectan SP 11, Somchem S365. 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%
41974
89%
**80
99%
[ADI AR 2209]*
<<locked>>
96%
42235
90%
**46
93%
[Accurate 2700]*
<<locked>>
85%
42177
89%
**38
94%
[Accurate 3100]*
<<locked>>
97%
35360
75%
**31
94%
Accurate 4064
<<locked>>
83%
42366
90%
**00
100%
Accurate 4350
<<locked>>
92%
42163
89%
**62
98%
Alliant Reloder- TS 15.5
<<locked>>
84%
42293
90%
**13
100%
Alliant Reloder-16
<<locked>>
92%
42409
90%
**82
98%
Alliant Reloder-17 👍
<<locked>>
88%
42351
90%
**08
100%
[Alliant Reloder-19]*
<<locked>>
97%
42308
90%
**56
93%
Alliant Reloder-23
<<locked>>
97%
34592
73%
**57
98%
Alliant Reloder-26
<<locked>>
97%
37985
81%
**82
97%
Hodgdon H380
<<locked>>
83%
42293
90%
**10
98%
Hodgdon H414
<<locked>>
87%
42119
89%
**56
95%
Hodgdon H4350
<<locked>>
93%
42395
90%
**06
95%
Hodgdon Hybrid 100V 👍
<<locked>>
95%
42206
90%
**39
99%
Hodgdon LVR
<<locked>>
89%
42090
89%
**49
97%
Hodgdon Superperformance
<<locked>>
90%
42264
90%
**79
95%
Hodgdon VARGET
<<locked>>
84%
42250
90%
**87
99%
IMR 4064
<<locked>>
84%
41785
89%
**67
99%
IMR 4166 Enduron
<<locked>>
84%
42090
89%
**51
95%
IMR 4350
<<locked>>
91%
42032
89%
**00
95%
IMR 4451 Enduron
<<locked>>
86%
41930
89%
**74
95%
IMR 4831
<<locked>>
97%
42322
90%
**56
98%
Lovex S065
<<locked>>
88%
41959
89%
**87
97%
Lovex S070
<<locked>>
90%
41829
89%
**00
95%
[Lovex S071]*
<<locked>>
97%
29559
63%
**03
92%
[Norma 204]*
<<locked>>
92%
42148
89%
**33
93%
[Norma MRP]*
<<locked>>
97%
38522
82%
**59
94%
Norma URP
<<locked>>
92%
41916
89%
**56
98%
Ramshot Hunter
<<locked>>
93%
42380
90%
**75
96%
ReloadSwiss RS 50
<<locked>>
83%
42409
90%
**93
96%
ReloadSwiss RS 60 👍
<<locked>>
89%
42337
90%
**25
100%
ReloadSwiss RS 62
<<locked>>
92%
42235
90%
**95
98%
ReloadSwiss RS 70
<<locked>>
92%
42090
89%
**95
97%
Rottweil R 903
<<locked>>
86%
42221
90%
**20
99%
[Rottweil R 904]*
<<locked>>
95%
42018
89%
**97
91%
[Rottweil R 905]*
<<locked>>
97%
41060
87%
**39
93%
Rottweil R 907
<<locked>>
87%
42105
89%
**77
95%
SNPE Vectan SP 11 👍
<<locked>>
85%
42395
90%
**49
99%
SNPE Vectan Tubal 5000
<<locked>>
84%
42119
89%
**11
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
42395
90%
**54
95%
Shooters World Long Rifle
<<locked>>
88%
41959
89%
**87
97%
Somchem S355
<<locked>>
85%
42148
89%
**03
99%
Somchem S365 👍
<<locked>>
95%
42061
89%
**02
100%
[Somchem S385]*
<<locked>>
97%
41452
88%
**26
94%
Vihtavuori N135
<<locked>>
86%
42235
90%
**57
100%
Vihtavuori N150
<<locked>>
91%
42206
90%
**80
100%
Vihtavuori N160
<<locked>>
89%
41872
89%
**20
98%
Vihtavuori N550
<<locked>>
89%
42351
90%
**65
98%
Vihtavuori N555
<<locked>>
97%
37173
79%
**20
98%
Winchester 6.5 StaBALL
<<locked>>
90%
42018
89%
**06
99%
Winchester 760
<<locked>>
87%
42119
89%
**56
95%
Winchester StaBALL HD
<<locked>>
97%
30705
65%
**38
97%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
38812
82%
**24
98%
[ADI AR 2209]*
<<locked>>
91%
36260
77%
**21
90%
[Accurate 2700]*
<<locked>>
81%
37072
79%
**42
92%
[Accurate 3100]*
<<locked>>
89%
27238
58%
**47
90%
Accurate 4064
<<locked>>
81%
39653
84%
**51
100%
[Accurate 4350]*
<<locked>>
81%
29037
62%
**00
94%
Alliant Reloder- TS 15.5
<<locked>>
81%
38624
82%
**47
99%
[Alliant Reloder-16]*
<<locked>>
81%
30066
64%
**10
94%
Alliant Reloder-17
<<locked>>
81%
33272
71%
**21
97%
[Alliant Reloder-19]*
<<locked>>
91%
35447
75%
**18
90%
[Alliant Reloder-23]*
<<locked>>
82%
22466
48%
**13
90%
[Alliant Reloder-26]*
<<locked>>
87%
26977
57%
**00
90%
Hodgdon H380
<<locked>>
81%
39117
83%
**54
97%
[Hodgdon H414]*
<<locked>>
81%
34301
73%
**01
92%
[Hodgdon H4350]*
<<locked>>
84%
31763
67%
**90
90%
Hodgdon Hybrid 100V
<<locked>>
81%
27383
58%
**28
95%
[Hodgdon LVR]*
<<locked>>
81%
32430
69%
**52
94%
[Hodgdon Superperformance]*
<<locked>>
82%
32416
69%
**72
90%
Hodgdon VARGET
<<locked>>
81%
38682
82%
**18
98%
IMR 4064
<<locked>>
81%
38218
81%
**01
98%
[IMR 4166 Enduron]*
<<locked>>
81%
38072
81%
**72
94%
[IMR 4350]*
<<locked>>
82%
31430
67%
**80
90%
[IMR 4451 Enduron]*
<<locked>>
81%
36013
76%
**62
93%
[IMR 4831]*
<<locked>>
81%
25817
55%
**98
92%
[Lovex S065]*
<<locked>>
81%
33344
71%
**13
94%
[Lovex S070]*
<<locked>>
81%
31618
67%
**93
92%
[Lovex S071]*
<<locked>>
94%
27238
58%
**47
90%
[Norma 204]*
<<locked>>
86%
35766
76%
**05
90%
[Norma MRP]*
<<locked>>
91%
31894
68%
**01
90%
[Norma URP]*
<<locked>>
81%
29747
63%
**00
94%
[Ramshot Hunter]*
<<locked>>
81%
29211
62%
**87
91%
ReloadSwiss RS 50
<<locked>>
81%
39494
84%
**38
95%
ReloadSwiss RS 60
<<locked>>
81%
32372
69%
**11
98%
[ReloadSwiss RS 62]*
<<locked>>
81%
28935
61%
**06
93%
[ReloadSwiss RS 70]*
<<locked>>
81%
29312
62%
**03
91%
Rottweil R 903
<<locked>>
81%
35824
76%
**01
98%
[Rottweil R 904]*
<<locked>>
92%
38957
83%
**38
90%
[Rottweil R 905]*
<<locked>>
92%
34563
73%
**08
90%
[Rottweil R 907]*
<<locked>>
81%
34606
73%
**33
92%
SNPE Vectan SP 11
<<locked>>
81%
36782
78%
**47
98%
SNPE Vectan Tubal 5000
<<locked>>
81%
38334
81%
**52
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
32372
69%
**67
92%
[Shooters World Long Rifle]*
<<locked>>
81%
33344
71%
**13
94%
Somchem S355
<<locked>>
81%
36608
78%
**05
98%
Somchem S365
<<locked>>
81%
26658
57%
**57
96%
[Somchem S385]*
<<locked>>
89%
31502
67%
**26
90%
Vihtavuori N135
<<locked>>
81%
35853
76%
**49
100%
Vihtavuori N150
<<locked>>
81%
31430
67%
**77
98%
Vihtavuori N160
<<locked>>
81%
32169
68%
**29
95%
Vihtavuori N550
<<locked>>
81%
32735
69%
**72
95%
[Vihtavuori N555]*
<<locked>>
81%
22698
48%
**52
90%
Winchester 6.5 StaBALL
<<locked>>
81%
30908
66%
**87
97%
[Winchester 760]*
<<locked>>
81%
34301
73%
**01
92%
[Winchester StaBALL HD]*
<<locked>>
88%
23801
50%
**05
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.

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

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