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Load data for .300 Norma Mag + .308 | 200gr | Speer Grand Slam

Recommended Powder(s):

.300 Norma Mag + .308 | 200gr | Speer Grand Slam

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 200gr | Speer Grand Slam
Manufacturer SKU:
2212
Bullet Weight:
200gr | 13.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
<<locked>>
Caliber:
.300 Norma Mag load data
Case Length (l3):
2.490" | 63.2mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
104.0 Grains of Water | 6.75 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B6175_C365
Last updated:
2026-01-21

Load data for 108 loads in caliber .300 Norma Mag with .308 | 200gr | Speer Grand Slam bullet and 54 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".

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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 2209
<<locked>>
87%
56956
89%
**77
100%
ADI AR 2213
<<locked>>
89%
56768
89%
**17
100%
ADI AR 2217
<<locked>>
97%
53998
85%
**77
100%
ADI AR 2218
<<locked>>
97%
46978
74%
**28
95%
ADI AR 2225
<<locked>>
97%
48776
76%
**38
100%
Accurate 3100
<<locked>>
90%
57305
90%
**25
100%
Accurate MAGPRO 👍
<<locked>>
90%
57203
90%
**33
99%
Alliant Reloder-19
<<locked>>
87%
57130
90%
**81
100%
Alliant Reloder-22
<<locked>>
89%
57217
90%
**13
100%
Alliant Reloder-23
<<locked>>
90%
56927
89%
**44
100%
Alliant Reloder-25
<<locked>>
94%
57087
89%
**17
100%
Alliant Reloder-26
<<locked>>
86%
57276
90%
**33
100%
Alliant Reloder-33
<<locked>>
97%
51300
80%
**84
96%
[Alliant Reloder-50]*
<<locked>>
97%
43221
68%
**26
93%
Baschieri & Pellagri 109
<<locked>>
91%
57217
90%
**77
98%
Bofors RP15 👍
<<locked>>
92%
57130
90%
**13
100%
Bofors RP30
<<locked>>
97%
57406
90%
**36
100%
Bofors RP5
<<locked>>
89%
57217
90%
**13
100%
Hodgdon H1000
<<locked>>
97%
53998
85%
**77
100%
Hodgdon H4350
<<locked>>
85%
57377
90%
**28
100%
Hodgdon H4831 👍
<<locked>>
92%
57276
90%
**71
99%
Hodgdon H4831 SC
<<locked>>
88%
56971
89%
**61
99%
Hodgdon Hybrid 100V
<<locked>>
84%
57232
90%
**82
100%
Hodgdon Retumbo
<<locked>>
97%
48776
76%
**38
100%
Hodgdon TrailBoss
<<locked>>
97%
36071
57%
**68
100%
IMR 4350
<<locked>>
83%
57145
90%
**18
100%
IMR 4831
<<locked>>
86%
57217
90%
**15
100%
IMR 4955 Enduron
<<locked>>
90%
57305
90%
**41
99%
IMR 7828 SSC
<<locked>>
88%
56695
89%
**23
100%
[IMR 7977 Enduron]*
<<locked>>
94%
57116
90%
**99
94%
IMR 8133 Enduron
<<locked>>
97%
44788
70%
**43
98%
[Lovex D100]*
<<locked>>
97%
53592
84%
**82
92%
Lovex S071
<<locked>>
95%
57116
89%
**15
100%
Norma 217
<<locked>>
97%
45585
71%
**76
100%
Norma MRP
<<locked>>
87%
56985
89%
**27
100%
Ramshot Grand
<<locked>>
86%
57029
89%
**30
100%
Ramshot Magnum
<<locked>>
90%
57072
89%
**87
100%
ReloadSwiss RS 14
<<locked>>
96%
36796
58%
**11
100%
ReloadSwiss RS 76 👍
<<locked>>
95%
57145
90%
**02
100%
ReloadSwiss RS 80
<<locked>>
97%
56492
89%
**66
99%
Rottweil R 904
<<locked>>
86%
57232
90%
**44
100%
Rottweil R 905
<<locked>>
87%
56884
89%
**67
100%
[Shooters World 50 BMG]*
<<locked>>
97%
53592
84%
**82
92%
Somchem S361
<<locked>>
86%
57159
90%
**18
99%
Somchem S365
<<locked>>
83%
56884
89%
**18
100%
Somchem S385
<<locked>>
87%
57014
89%
**38
100%
Vihtavuori N165
<<locked>>
92%
56855
89%
**25
100%
[Vihtavuori N170]*
<<locked>>
97%
50357
79%
**46
94%
Vihtavuori N555
<<locked>>
87%
57000
89%
**44
100%
Vihtavuori N560
<<locked>>
89%
56855
89%
**36
99%
Vihtavuori N565 👍
<<locked>>
93%
57261
90%
**23
100%
Vihtavuori N568
<<locked>>
97%
57101
89%
**63
99%
Vihtavuori N570
<<locked>>
97%
55259
87%
**63
97%
Winchester StaBALL HD
<<locked>>
91%
57261
90%
**43
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
47398
74%
**23
99%
ADI AR 2213
<<locked>>
81%
42424
66%
**61
97%
[ADI AR 2217]*
<<locked>>
81%
31531
49%
**85
93%
[ADI AR 2218]*
<<locked>>
91%
38174
60%
**18
90%
ADI AR 2225
<<locked>>
81%
28935
45%
**62
95%
Accurate 3100
<<locked>>
81%
43163
68%
**92
100%
Accurate MAGPRO
<<locked>>
81%
42250
66%
**57
95%
Alliant Reloder-19
<<locked>>
81%
47239
74%
**10
99%
Alliant Reloder-22
<<locked>>
81%
43149
68%
**61
98%
Alliant Reloder-23
<<locked>>
81%
41916
66%
**12
100%
Alliant Reloder-25
<<locked>>
81%
36027
56%
**33
99%
Alliant Reloder-26
<<locked>>
81%
47166
74%
**66
100%
[Alliant Reloder-33]*
<<locked>>
87%
35447
56%
**43
90%
[Alliant Reloder-50]*
<<locked>>
92%
36651
57%
**75
90%
[Baschieri & Pellagri 109]*
<<locked>>
81%
41379
65%
**69
93%
Bofors RP15
<<locked>>
81%
40074
63%
**92
98%
[Bofors RP30]*
<<locked>>
81%
33504
53%
**70
94%
Bofors RP5
<<locked>>
81%
43149
68%
**61
98%
[Hodgdon H1000]*
<<locked>>
81%
31531
49%
**85
93%
Hodgdon H4350
<<locked>>
81%
50575
79%
**23
100%
Hodgdon H4831
<<locked>>
81%
39914
63%
**52
96%
Hodgdon H4831 SC
<<locked>>
81%
44338
69%
**44
97%
Hodgdon Hybrid 100V
<<locked>>
81%
51300
80%
**07
100%
Hodgdon Retumbo
<<locked>>
81%
28935
45%
**62
95%
Hodgdon TrailBoss
<<locked>>
84%
30139
47%
**47
100%
IMR 4350
<<locked>>
81%
53040
83%
**56
100%
IMR 4831
<<locked>>
81%
48834
77%
**94
100%
IMR 4955 Enduron
<<locked>>
81%
43584
68%
**02
97%
IMR 7828 SSC
<<locked>>
81%
43700
68%
**94
98%
[IMR 7977 Enduron]*
<<locked>>
86%
43787
69%
**62
90%
[IMR 8133 Enduron]*
<<locked>>
82%
27456
43%
**10
90%
[Lovex D100]*
<<locked>>
94%
47834
75%
**87
90%
Lovex S071
<<locked>>
81%
37173
58%
**64
99%
[Norma 217]*
<<locked>>
81%
26426
41%
**97
92%
Norma MRP
<<locked>>
81%
45585
71%
**36
100%
Ramshot Grand
<<locked>>
81%
46180
72%
**46
98%
Ramshot Magnum
<<locked>>
81%
40698
64%
**05
99%
ReloadSwiss RS 14
<<locked>>
81%
29530
46%
**60
100%
ReloadSwiss RS 76
<<locked>>
81%
34374
54%
**52
98%
[ReloadSwiss RS 80]*
<<locked>>
81%
31285
49%
**31
91%
Rottweil R 904
<<locked>>
81%
48254
76%
**94
99%
Rottweil R 905
<<locked>>
81%
46847
73%
**00
99%
[Shooters World 50 BMG]*
<<locked>>
94%
47834
75%
**87
90%
Somchem S361
<<locked>>
81%
49153
77%
**84
98%
Somchem S365
<<locked>>
81%
52721
83%
**59
100%
Somchem S385
<<locked>>
81%
47224
74%
**77
100%
Vihtavuori N165
<<locked>>
81%
39914
63%
**23
98%
[Vihtavuori N170]*
<<locked>>
89%
38725
61%
**07
90%
Vihtavuori N555
<<locked>>
81%
46499
73%
**80
100%
Vihtavuori N560
<<locked>>
81%
43381
68%
**84
97%
Vihtavuori N565
<<locked>>
81%
37594
59%
**46
95%
[Vihtavuori N568]*
<<locked>>
81%
32634
51%
**54
91%
[Vihtavuori N570]*
<<locked>>
85%
36506
57%
**75
90%
Winchester StaBALL HD
<<locked>>
81%
39537
62%
**57
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

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