top of page

Load data for .375 Ruger + .375 | 285gr | Speer Grand Slam

You need to be a member to bookmark a  load !

Bookmark this load
>> My bookmarks

Recommended Powder(s): Alliant Reloder-17, Hodgdon CFE223, ReloadSwiss RS 60, SNPE Vectan SP 11, Vihtavuori N550

.375 Ruger + .375 | 285gr | Speer Grand Slam

Load Specifications

Bullet:
.375 | 285gr | Speer Grand Slam
Manufacturer SKU:
2473
Bullet Weight:
285gr | 18.5g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
1.220" | 31.0mm
Caliber:
.375 Ruger
Case Length (l3):
2.572" | 65.3mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.502" | 12.8mm
Shank Seated Depth:
0.502" | 12.8mm
Case Capacity:
99.0 Grains of Water | 6.43 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
62076 psi | 4280 bar
LID:
LID_B6246_C561
Last updated:
2025-01-01

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

Load data for 190 loads in caliber .375 Ruger with .375 | 285gr | Speer Grand Slam bullet and 95 powders such as Alliant Reloder-17, Hodgdon CFE223, ReloadSwiss RS 60, SNPE Vectan SP 11, Vihtavuori N550. 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".

  • Muzzle velocity vs. barrel length

    Every 1 inch additional barrel length increases muzzle velocity by approx. 25 fps

  • .

    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>>
87%
55579
90%
**36
100%
ADI AR 2208
<<locked>>
92%
55651
90%
**20
100%
[ADI AR 2209]*
<<locked>>
97%
43845
71%
**02
93%
Accurate 2015
<<locked>>
83%
55376
89%
**28
100%
Accurate 2200
<<locked>>
85%
55695
90%
**07
100%
Accurate 2495
<<locked>>
85%
54897
88%
**80
100%
Accurate 2520
<<locked>>
85%
55811
90%
**16
100%
Accurate 2700
<<locked>>
93%
55085
89%
**61
97%
Accurate 3100
<<locked>>
97%
36129
58%
**70
95%
Accurate 4064
<<locked>>
91%
55361
89%
**10
100%
Accurate 4350
<<locked>>
97%
50575
81%
**30
99%
Alliant AR-Comp
<<locked>>
85%
55027
89%
**61
100%
Alliant Reloder- TS 15.5
<<locked>>
92%
55666
90%
**43
100%
Alliant Reloder-15
<<locked>>
90%
55680
90%
**56
100%
Alliant Reloder-16
<<locked>>
97%
49356
80%
**36
100%
Alliant Reloder-17 👍
<<locked>>
96%
55637
90%
**44
100%
[Alliant Reloder-19]*
<<locked>>
97%
42699
69%
**98
94%
Alliant Reloder-23
<<locked>>
97%
35041
56%
**03
98%
[Alliant Reloder-25]*
<<locked>>
97%
31314
50%
**01
92%
Alliant Reloder-26
<<locked>>
97%
38493
62%
**25
97%
Baschieri & Pellagri 107
<<locked>>
87%
55463
89%
**49
100%
Hodgdon BL-C2
<<locked>>
85%
55825
90%
**56
100%
Hodgdon Benchmark
<<locked>>
84%
55288
89%
**57
100%
Hodgdon CFE223 👍
<<locked>>
90%
55521
89%
**89
100%
Hodgdon H322
<<locked>>
83%
55463
89%
**87
100%
Hodgdon H380
<<locked>>
91%
55405
89%
**46
100%
Hodgdon H414
<<locked>>
95%
55550
89%
**98
98%
Hodgdon H4350
<<locked>>
97%
47500
77%
**21
96%
Hodgdon Hybrid 100V
<<locked>>
97%
45890
74%
**31
100%
Hodgdon LVR
<<locked>>
97%
54737
88%
**79
99%
Hodgdon Superperformance
<<locked>>
97%
55056
89%
**15
98%
Hodgdon VARGET
<<locked>>
92%
55317
89%
**20
100%
IMR 3031
<<locked>>
89%
55419
89%
**13
100%
IMR 4064
<<locked>>
93%
55738
90%
**13
100%
IMR 4166 Enduron
<<locked>>
93%
55463
89%
**97
98%
IMR 4350
<<locked>>
97%
50792
82%
**70
97%
IMR 4451 Enduron
<<locked>>
94%
55187
89%
**16
98%
IMR 4831
<<locked>>
97%
43004
69%
**98
99%
IMR 4895
<<locked>>
89%
55666
90%
**66
100%
IMR 8208 XBR
<<locked>>
85%
55332
89%
**00
100%
Lovex D073.6
<<locked>>
87%
55811
90%
**16
100%
Lovex S060
<<locked>>
87%
55535
89%
**74
100%
Lovex S062
<<locked>>
91%
55651
90%
**10
100%
Lovex S065
<<locked>>
97%
54650
88%
**13
99%
Lovex S070
<<locked>>
97%
52736
85%
**03
98%
[Lovex S071]*
<<locked>>
97%
30168
49%
**49
92%
Norma 201
<<locked>>
88%
55869
90%
**07
100%
Norma 202
<<locked>>
87%
55825
90%
**00
100%
Norma 203B
<<locked>>
90%
55477
89%
**56
100%
Norma 204
<<locked>>
97%
50792
82%
**07
96%
[Norma MRP]*
<<locked>>
97%
39146
63%
**98
94%
Norma URP
<<locked>>
97%
50589
82%
**30
99%
Ramshot Big Game
<<locked>>
90%
55825
90%
**69
100%
Ramshot Hunter
<<locked>>
97%
48950
79%
**16
98%
Ramshot TAC
<<locked>>
85%
55622
90%
**16
99%
Ramshot Wild Boar
<<locked>>
85%
55172
89%
**33
100%
ReloadSwiss RS 50
<<locked>>
91%
55695
90%
**30
99%
ReloadSwiss RS 52
<<locked>>
91%
55593
90%
**69
100%
ReloadSwiss RS 60 👍
<<locked>>
97%
55376
89%
**51
100%
ReloadSwiss RS 62
<<locked>>
97%
50531
81%
**49
99%
ReloadSwiss RS 70
<<locked>>
97%
50618
82%
**72
99%
Rottweil R 901
<<locked>>
85%
55854
90%
**74
100%
Rottweil R 902
<<locked>>
89%
55434
89%
**90
100%
Rottweil R 903
<<locked>>
94%
55680
90%
**43
100%
[Rottweil R 904]*
<<locked>>
97%
45484
73%
**88
93%
[Rottweil R 905]*
<<locked>>
97%
41510
67%
**82
93%
Rottweil R 907
<<locked>>
96%
55622
90%
**20
98%
SNPE Vectan SP 11 👍
<<locked>>
93%
55129
89%
**66
100%
SNPE Vectan SP 7
<<locked>>
86%
55593
90%
**23
100%
SNPE Vectan SP 9
<<locked>>
88%
55085
89%
**23
100%
SNPE Vectan Tubal 3000
<<locked>>
86%
55216
89%
**21
100%
SNPE Vectan Tubal 5000
<<locked>>
93%
55637
90%
**21
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
55085
89%
**70
98%
Shooters World Long Rifle
<<locked>>
97%
54650
88%
**13
99%
Shooters World Match Rifle
<<locked>>
87%
55811
90%
**16
100%
Shooters World Precision
<<locked>>
91%
55651
90%
**10
100%
Somchem S335
<<locked>>
87%
55259
89%
**28
100%
Somchem S341
<<locked>>
86%
55390
89%
**16
100%
Somchem S355
<<locked>>
94%
55608
90%
**36
100%
[Somchem S361]*
<<locked>>
97%
46804
75%
**79
92%
Somchem S365
<<locked>>
97%
44918
72%
**77
100%
Somchem S385
<<locked>>
97%
41756
67%
**65
95%
Vihtavuori N130
<<locked>>
83%
55477
89%
**92
100%
Vihtavuori N133
<<locked>>
89%
55854
90%
**15
100%
Vihtavuori N135
<<locked>>
95%
55840
90%
**67
100%
Vihtavuori N140
<<locked>>
89%
55477
89%
**70
100%
Vihtavuori N150
<<locked>>
97%
51822
83%
**54
100%
Vihtavuori N160
<<locked>>
97%
55506
89%
**49
100%
Vihtavuori N530
<<locked>>
84%
55840
90%
**16
100%
Vihtavuori N540
<<locked>>
90%
55434
89%
**00
100%
Vihtavuori N550 👍
<<locked>>
97%
55637
90%
**92
100%
Vihtavuori N555
<<locked>>
97%
37898
61%
**65
98%
Winchester 6.5 StaBALL
<<locked>>
97%
53142
86%
**00
100%
Winchester 760
<<locked>>
95%
55550
89%
**98
98%
Winchester StaBALL HD
<<locked>>
97%
31212
50%
**83
97%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
46151
74%
**98
100%
ADI AR 2208
<<locked>>
81%
39189
63%
**67
98%
[ADI AR 2209]*
<<locked>>
90%
35911
58%
**51
90%
Accurate 2015
<<locked>>
81%
52025
84%
**85
100%
Accurate 2200
<<locked>>
81%
48414
78%
**05
99%
Accurate 2495
<<locked>>
81%
47558
77%
**92
100%
Accurate 2520
<<locked>>
81%
48327
78%
**21
100%
[Accurate 2700]*
<<locked>>
81%
37536
60%
**88
93%
[Accurate 3100]*
<<locked>>
88%
26789
43%
**60
90%
Accurate 4064
<<locked>>
81%
40089
65%
**97
100%
[Accurate 4350]*
<<locked>>
81%
29312
47%
**39
94%
Alliant AR-Comp
<<locked>>
81%
48820
79%
**92
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
38986
63%
**93
99%
Alliant Reloder-15
<<locked>>
81%
41814
67%
**49
99%
[Alliant Reloder-16]*
<<locked>>
81%
30342
49%
**56
94%
Alliant Reloder-17
<<locked>>
81%
33475
54%
**64
98%
[Alliant Reloder-19]*
<<locked>>
90%
35244
57%
**47
90%
[Alliant Reloder-23]*
<<locked>>
82%
22379
36%
**46
90%
[Alliant Reloder-25]*
<<locked>>
94%
28790
46%
**33
90%
[Alliant Reloder-26]*
<<locked>>
86%
26600
43%
**19
90%
Baschieri & Pellagri 107
<<locked>>
81%
45542
73%
**11
99%
Hodgdon BL-C2
<<locked>>
81%
48167
78%
**51
100%
Hodgdon Benchmark
<<locked>>
81%
50198
81%
**95
100%
Hodgdon CFE223
<<locked>>
81%
39987
64%
**52
98%
Hodgdon H322
<<locked>>
81%
51227
83%
**31
100%
Hodgdon H380
<<locked>>
81%
39334
63%
**97
97%
[Hodgdon H414]*
<<locked>>
81%
34606
56%
**44
93%
[Hodgdon H4350]*
<<locked>>
83%
31633
51%
**23
90%
Hodgdon Hybrid 100V
<<locked>>
81%
27688
45%
**70
95%
[Hodgdon LVR]*
<<locked>>
81%
32663
53%
**95
94%
[Hodgdon Superperformance]*
<<locked>>
82%
32198
52%
**92
90%
Hodgdon VARGET
<<locked>>
81%
39073
63%
**67
98%
IMR 3031
<<locked>>
81%
42351
68%
**46
100%
IMR 4064
<<locked>>
81%
38566
62%
**51
98%
[IMR 4166 Enduron]*
<<locked>>
81%
38450
62%
**21
94%
[IMR 4350]*
<<locked>>
81%
31314
50%
**13
90%
[IMR 4451 Enduron]*
<<locked>>
81%
36289
58%
**05
93%
[IMR 4831]*
<<locked>>
81%
26150
42%
**37
92%
IMR 4895
<<locked>>
81%
42757
69%
**72
99%
IMR 8208 XBR
<<locked>>
81%
48269
78%
**08
100%
Lovex D073.6
<<locked>>
81%
45440
73%
**82
100%
Lovex S060
<<locked>>
81%
46079
74%
**43
100%
Lovex S062
<<locked>>
81%
41031
66%
**03
100%
[Lovex S065]*
<<locked>>
81%
33663
54%
**59
94%
[Lovex S070]*
<<locked>>
81%
31879
51%
**33
92%
[Lovex S071]*
<<locked>>
93%
26789
43%
**60
90%
Norma 201
<<locked>>
81%
45165
73%
**56
100%
Norma 202
<<locked>>
81%
45614
73%
**65
100%
Norma 203B
<<locked>>
81%
41046
66%
**36
99%
[Norma 204]*
<<locked>>
86%
35578
57%
**34
90%
[Norma MRP]*
<<locked>>
90%
31633
51%
**24
90%
[Norma URP]*
<<locked>>
81%
30124
49%
**46
94%
Ramshot Big Game
<<locked>>
81%
40785
66%
**49
99%
[Ramshot Hunter]*
<<locked>>
81%
29428
47%
**26
91%
Ramshot TAC
<<locked>>
81%
48312
78%
**15
98%
Ramshot Wild Boar
<<locked>>
81%
47630
77%
**31
100%
ReloadSwiss RS 50
<<locked>>
81%
40001
64%
**83
95%
ReloadSwiss RS 52
<<locked>>
81%
40016
64%
**46
100%
ReloadSwiss RS 60
<<locked>>
81%
32692
53%
**54
98%
[ReloadSwiss RS 62]*
<<locked>>
81%
29240
47%
**49
93%
[ReloadSwiss RS 70]*
<<locked>>
81%
29646
48%
**46
92%
Rottweil R 901
<<locked>>
81%
49371
80%
**88
100%
Rottweil R 902
<<locked>>
81%
43250
70%
**16
100%
Rottweil R 903
<<locked>>
81%
36158
58%
**47
99%
[Rottweil R 904]*
<<locked>>
92%
38711
62%
**70
90%
[Rottweil R 905]*
<<locked>>
91%
34200
55%
**34
90%
[Rottweil R 907]*
<<locked>>
81%
34911
56%
**75
92%
SNPE Vectan SP 11
<<locked>>
81%
37202
60%
**93
98%
SNPE Vectan SP 7
<<locked>>
81%
46586
75%
**92
98%
SNPE Vectan SP 9
<<locked>>
81%
44701
72%
**75
99%
SNPE Vectan Tubal 3000
<<locked>>
81%
46775
75%
**13
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
38812
63%
**98
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
32634
53%
**06
92%
[Shooters World Long Rifle]*
<<locked>>
81%
33663
54%
**59
94%
Shooters World Match Rifle
<<locked>>
81%
45440
73%
**82
100%
Shooters World Precision
<<locked>>
81%
41031
66%
**03
100%
Somchem S335
<<locked>>
81%
46035
74%
**13
100%
Somchem S341
<<locked>>
81%
46485
75%
**92
100%
Somchem S355
<<locked>>
81%
36970
60%
**47
99%
[Somchem S361]*
<<locked>>
93%
41365
67%
**93
90%
Somchem S365
<<locked>>
81%
26876
43%
**00
96%
[Somchem S385]*
<<locked>>
88%
30995
50%
**46
90%
Vihtavuori N130
<<locked>>
81%
51430
83%
**49
100%
Vihtavuori N133
<<locked>>
81%
43830
71%
**60
100%
Vihtavuori N135
<<locked>>
81%
36071
58%
**92
100%
Vihtavuori N140
<<locked>>
81%
42438
68%
**97
100%
Vihtavuori N150
<<locked>>
81%
31618
51%
**23
98%
Vihtavuori N160
<<locked>>
81%
32706
53%
**78
95%
Vihtavuori N530
<<locked>>
81%
51256
83%
**54
100%
Vihtavuori N540
<<locked>>
81%
42221
68%
**16
100%
Vihtavuori N550
<<locked>>
81%
32924
53%
**11
95%
[Vihtavuori N555]*
<<locked>>
81%
22945
37%
**95
90%
Winchester 6.5 StaBALL
<<locked>>
81%
31430
51%
**33
97%
[Winchester 760]*
<<locked>>
81%
34606
56%
**44
93%
[Winchester StaBALL HD]*
<<locked>>
87%
23235
37%
**18
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.

bottom of page