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Load data for .25 x 47 Lapua + .257 | 120gr | Speer Grand Slam

Recommended Powder(s): Alliant Reloder-15, Alliant Reloder-17, Ramshot Big Game, Rottweil R 903, SNPE Vectan SP 11

.25 x 47 Lapua + .257 | 120gr | Speer Grand Slam

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.257 | 120gr | Speer Grand Slam
Manufacturer SKU:
1415
Bullet Weight:
120gr | 7.8g
Bullet Diameter:
0.257" | 6.53mm
Bullet Length:
<<locked>>
Caliber:
.25 x 47 Lapua load data
Case Length (l3):
1.850" | 47.0mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
48.0 Grains of Water | 3.12 cm³
Primer Size:
Small Rifle (SR)
Max. allowed Pressure:
63092 psi | 4350 bar
LID:
LID_B6093_C996
Last updated:
2026-06-26

Load data for 202 loads in caliber .25 x 47 Lapua with .257 | 120gr | Speer Grand Slam bullet and 101 powders such as Alliant Reloder-15, Alliant Reloder-17, Ramshot Big Game, Rottweil R 903, SNPE Vectan SP 11. 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".

  • No data yet

  • 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 2206H
<<locked>>
87%
56565
90%
**18
100%
ADI AR 2208
<<locked>>
92%
56318
89%
**99
100%
[ADI AR 2209]*
<<locked>>
97%
44266
70%
**61
93%
ADI Benchmark 8208
<<locked>>
86%
56246
89%
**82
100%
Accurate 2015
<<locked>>
84%
55622
88%
**94
100%
Accurate 2495
<<locked>>
89%
56507
90%
**46
100%
Accurate 2520
<<locked>>
84%
55767
88%
**79
100%
Accurate 2700
<<locked>>
89%
55927
89%
**49
97%
[Accurate 3100]*
<<locked>>
97%
36521
58%
**07
94%
Accurate 4064
<<locked>>
91%
55535
88%
**85
100%
Accurate 4350
<<locked>>
97%
51285
81%
**05
99%
Alliant AR-Comp
<<locked>>
85%
56362
89%
**43
100%
Alliant Power Pro 2000-MR
<<locked>>
89%
56739
90%
**49
100%
Alliant Reloder- TS 15.5
<<locked>>
92%
55956
89%
**15
100%
Alliant Reloder-15 👍
<<locked>>
90%
56173
89%
**35
100%
Alliant Reloder-16
<<locked>>
97%
49980
79%
**15
99%
Alliant Reloder-17 👍
<<locked>>
96%
56260
89%
**33
100%
[Alliant Reloder-19]*
<<locked>>
97%
43221
69%
**51
93%
Alliant Reloder-23
<<locked>>
97%
35708
57%
**52
98%
Alliant Reloder-26
<<locked>>
97%
39175
62%
**80
96%
Baschieri & Pellagri 107
<<locked>>
87%
55709
88%
**28
100%
Bofors RP3
<<locked>>
92%
56115
89%
**28
100%
Bofors RP7
<<locked>>
96%
56753
90%
**02
98%
Hodgdon BL-C2
<<locked>>
86%
56231
89%
**22
100%
Hodgdon Benchmark
<<locked>>
85%
56492
90%
**43
100%
Hodgdon H380
<<locked>>
91%
56144
89%
**25
99%
Hodgdon H414
<<locked>>
97%
54157
86%
**51
98%
Hodgdon H4350
<<locked>>
95%
56594
90%
**44
97%
Hodgdon H4895
<<locked>>
86%
55782
88%
**08
100%
Hodgdon Hybrid 100V
<<locked>>
96%
45847
73%
**87
100%
Hodgdon LEVERevolution
<<locked>>
89%
56289
89%
**61
100%
Hodgdon Superformance
<<locked>>
97%
55854
89%
**07
98%
Hodgdon TrailBoss
<<locked>>
96%
33649
53%
**63
100%
Hodgdon VARGET
<<locked>>
88%
56057
89%
**95
100%
IMR 3031
<<locked>>
86%
55651
88%
**92
100%
IMR 4064
<<locked>>
91%
56521
90%
**95
100%
IMR 4166 Enduron
<<locked>>
88%
55840
89%
**66
98%
IMR 4350
<<locked>>
97%
51111
81%
**36
96%
IMR 4451 Enduron
<<locked>>
95%
56768
90%
**05
98%
IMR 4831
<<locked>>
96%
48428
77%
**43
99%
IMR 4895
<<locked>>
89%
56478
90%
**44
100%
IMR 8208 XBR
<<locked>>
86%
56246
89%
**82
100%
Lovex D073.6
<<locked>>
87%
55419
88%
**85
100%
Lovex S060
<<locked>>
87%
56333
89%
**53
100%
Lovex S062
<<locked>>
91%
56550
90%
**92
100%
Lovex S065
<<locked>>
97%
55564
88%
**92
99%
Lovex S070
<<locked>>
96%
52576
83%
**66
98%
Norma 201
<<locked>>
88%
56565
90%
**82
100%
Norma 202
<<locked>>
87%
55608
88%
**62
100%
Norma 203B
<<locked>>
91%
56681
90%
**44
100%
Norma 204
<<locked>>
97%
51416
81%
**85
95%
[Norma MRP]*
<<locked>>
96%
39059
62%
**44
93%
Norma URP
<<locked>>
96%
50314
80%
**89
99%
Ramshot Big Game 👍
<<locked>>
90%
55970
89%
**48
100%
Ramshot Hunter
<<locked>>
97%
49603
79%
**85
98%
Ramshot TAC
<<locked>>
85%
55927
89%
**95
99%
Ramshot Wild Boar
<<locked>>
85%
55782
88%
**08
100%
Ramshot X-Terminator
<<locked>>
83%
56768
90%
**72
100%
ReloadSwiss RS 14
<<locked>>
96%
34301
54%
**06
100%
ReloadSwiss RS 50
<<locked>>
91%
55970
89%
**02
98%
ReloadSwiss RS 52
<<locked>>
87%
55854
89%
**87
100%
ReloadSwiss RS 60
<<locked>>
94%
55767
88%
**27
100%
ReloadSwiss RS 62
<<locked>>
96%
50459
80%
**22
99%
ReloadSwiss RS 70
<<locked>>
97%
51155
81%
**51
99%
Rottweil R 901
<<locked>>
85%
56086
89%
**46
100%
Rottweil R 902
<<locked>>
89%
56579
90%
**72
100%
Rottweil R 903 👍
<<locked>>
94%
56666
90%
**31
100%
[Rottweil R 904]*
<<locked>>
97%
46035
73%
**51
92%
[Rottweil R 905]*
<<locked>>
97%
41582
66%
**28
93%
Rottweil R 907
<<locked>>
96%
56753
90%
**02
98%
SNPE Vectan SP 11 👍
<<locked>>
93%
56347
89%
**64
100%
SNPE Vectan SP 7
<<locked>>
86%
55840
88%
**89
99%
SNPE Vectan SP 9
<<locked>>
88%
56753
90%
**15
100%
SNPE Vectan Tubal 3000
<<locked>>
87%
55869
89%
**94
100%
SNPE Vectan Tubal 5000
<<locked>>
93%
56434
89%
**90
100%
SNPE Vectan Tubal 7000
<<locked>>
96%
55172
87%
**40
98%
[SNPE Vectan Tubal 8000]*
<<locked>>
97%
41220
65%
**18
92%
Shooters World Long Rifle
<<locked>>
97%
55564
88%
**92
99%
Shooters World Match Rifle
<<locked>>
87%
55419
88%
**85
100%
Shooters World Precision
<<locked>>
91%
56550
90%
**92
100%
Shooters World SW4350
<<locked>>
96%
52576
83%
**66
98%
Somchem S335
<<locked>>
87%
56043
89%
**97
100%
Somchem S341
<<locked>>
87%
56710
90%
**99
100%
Somchem S355
<<locked>>
94%
56260
89%
**18
100%
[Somchem S361]*
<<locked>>
97%
47442
75%
**44
92%
Somchem S365
<<locked>>
97%
45629
72%
**49
100%
[Somchem S385]*
<<locked>>
97%
42917
68%
**31
94%
Vihtavuori N133
<<locked>>
87%
56217
89%
**80
100%
Vihtavuori N135
<<locked>>
91%
56391
89%
**43
100%
Vihtavuori N140
<<locked>>
89%
56391
89%
**43
100%
Vihtavuori N150
<<locked>>
95%
56318
89%
**72
100%
Vihtavuori N160
<<locked>>
97%
53040
84%
**89
99%
Vihtavuori N530
<<locked>>
85%
56565
90%
**72
100%
Vihtavuori N540
<<locked>>
90%
55753
88%
**59
100%
Vihtavuori N550
<<locked>>
97%
52866
84%
**05
99%
Vihtavuori N555
<<locked>>
97%
38638
61%
**25
98%
Winchester 6.5 StaBALL
<<locked>>
97%
53780
85%
**79
100%
Winchester 748
<<locked>>
85%
56144
89%
**22
100%
Winchester 760
<<locked>>
97%
54911
87%
**64
98%
Winchester StaBALL HD
<<locked>>
97%
31633
50%
**23
97%
Winchester StaBALL Match
<<locked>>
88%
56623
90%
**28
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
46934
74%
**64
99%
ADI AR 2208
<<locked>>
81%
39595
63%
**16
98%
[ADI AR 2209]*
<<locked>>
92%
37463
59%
**16
90%
ADI Benchmark 8208
<<locked>>
81%
49052
78%
**74
100%
Accurate 2015
<<locked>>
81%
50734
80%
**25
100%
Accurate 2495
<<locked>>
81%
43265
69%
**52
100%
Accurate 2520
<<locked>>
81%
50647
80%
**03
100%
[Accurate 2700]*
<<locked>>
81%
42409
67%
**20
94%
[Accurate 3100]*
<<locked>>
89%
28326
45%
**10
90%
Accurate 4064
<<locked>>
81%
40930
65%
**56
100%
[Accurate 4350]*
<<locked>>
81%
30008
48%
**69
93%
Alliant AR-Comp
<<locked>>
81%
49719
79%
**61
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
42583
68%
**00
98%
Alliant Reloder- TS 15.5
<<locked>>
81%
39276
62%
**39
99%
Alliant Reloder-15
<<locked>>
81%
42424
67%
**98
98%
[Alliant Reloder-16]*
<<locked>>
81%
30618
49%
**82
94%
Alliant Reloder-17
<<locked>>
81%
34287
54%
**16
97%
[Alliant Reloder-19]*
<<locked>>
91%
36709
58%
**10
90%
[Alliant Reloder-23]*
<<locked>>
83%
23699
38%
**88
90%
[Alliant Reloder-26]*
<<locked>>
87%
28137
45%
**75
90%
Baschieri & Pellagri 107
<<locked>>
81%
46354
73%
**77
99%
Bofors RP3
<<locked>>
81%
39001
62%
**39
99%
[Bofors RP7]*
<<locked>>
81%
35491
56%
**08
91%
Hodgdon BL-C2
<<locked>>
81%
47674
76%
**94
100%
Hodgdon Benchmark
<<locked>>
81%
50473
80%
**51
100%
Hodgdon H380
<<locked>>
81%
40059
64%
**49
97%
[Hodgdon H414]*
<<locked>>
81%
32184
51%
**11
91%
[Hodgdon H4350]*
<<locked>>
81%
35520
56%
**48
90%
Hodgdon H4895
<<locked>>
81%
47355
75%
**77
100%
Hodgdon Hybrid 100V
<<locked>>
81%
28108
45%
**90
95%
Hodgdon LEVERevolution
<<locked>>
81%
43279
69%
**51
100%
[Hodgdon Superformance]*
<<locked>>
83%
34142
54%
**64
90%
Hodgdon TrailBoss
<<locked>>
81%
26803
42%
**26
100%
Hodgdon VARGET
<<locked>>
81%
45281
72%
**28
99%
IMR 3031
<<locked>>
81%
46717
74%
**61
100%
IMR 4064
<<locked>>
81%
41626
66%
**43
98%
IMR 4166 Enduron
<<locked>>
81%
44527
71%
**69
95%
[IMR 4350]*
<<locked>>
83%
32924
52%
**72
90%
[IMR 4451 Enduron]*
<<locked>>
81%
36811
58%
**38
93%
[IMR 4831]*
<<locked>>
81%
29109
46%
**26
93%
IMR 4895
<<locked>>
81%
43540
69%
**38
99%
IMR 8208 XBR
<<locked>>
81%
49052
78%
**74
100%
Lovex D073.6
<<locked>>
81%
45759
73%
**38
100%
Lovex S060
<<locked>>
81%
46847
74%
**05
99%
Lovex S062
<<locked>>
81%
41843
66%
**52
99%
[Lovex S065]*
<<locked>>
81%
34301
54%
**92
94%
[Lovex S070]*
<<locked>>
81%
32285
51%
**59
91%
Norma 201
<<locked>>
81%
45803
73%
**15
100%
Norma 202
<<locked>>
81%
46209
73%
**25
100%
Norma 203B
<<locked>>
81%
41945
66%
**89
99%
[Norma 204]*
<<locked>>
87%
37724
60%
**16
90%
[Norma MRP]*
<<locked>>
91%
33228
53%
**93
90%
[Norma URP]*
<<locked>>
81%
30298
48%
**65
93%
Ramshot Big Game
<<locked>>
81%
41336
66%
**98
98%
[Ramshot Hunter]*
<<locked>>
81%
29994
48%
**56
90%
Ramshot TAC
<<locked>>
81%
48791
77%
**77
98%
Ramshot Wild Boar
<<locked>>
81%
48588
77%
**00
100%
Ramshot X-Terminator
<<locked>>
81%
53055
84%
**26
100%
ReloadSwiss RS 14
<<locked>>
81%
27412
43%
**68
100%
ReloadSwiss RS 50
<<locked>>
81%
40480
64%
**33
95%
ReloadSwiss RS 52
<<locked>>
81%
44686
71%
**10
99%
ReloadSwiss RS 60
<<locked>>
81%
36477
58%
**75
100%
[ReloadSwiss RS 62]*
<<locked>>
81%
29747
47%
**79
93%
[ReloadSwiss RS 70]*
<<locked>>
81%
30008
48%
**75
91%
Rottweil R 901
<<locked>>
81%
50111
79%
**61
100%
Rottweil R 902
<<locked>>
81%
43743
69%
**69
100%
Rottweil R 903
<<locked>>
81%
36651
58%
**84
98%
[Rottweil R 904]*
<<locked>>
93%
40770
65%
**46
90%
[Rottweil R 905]*
<<locked>>
92%
36129
57%
**07
90%
[Rottweil R 907]*
<<locked>>
81%
35491
56%
**08
91%
SNPE Vectan SP 11
<<locked>>
81%
37695
60%
**36
98%
SNPE Vectan SP 7
<<locked>>
81%
47311
75%
**54
98%
SNPE Vectan SP 9
<<locked>>
81%
45223
72%
**35
99%
SNPE Vectan Tubal 3000
<<locked>>
81%
47253
75%
**69
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
39436
63%
**41
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
33185
53%
**33
92%
[SNPE Vectan Tubal 8000]*
<<locked>>
93%
36695
58%
**23
91%
[Shooters World Long Rifle]*
<<locked>>
81%
34301
54%
**92
94%
Shooters World Match Rifle
<<locked>>
81%
45759
73%
**38
100%
Shooters World Precision
<<locked>>
81%
41843
66%
**52
99%
[Shooters World SW4350]*
<<locked>>
81%
32285
51%
**59
91%
Somchem S335
<<locked>>
81%
46775
74%
**72
100%
Somchem S341
<<locked>>
81%
47166
75%
**54
99%
Somchem S355
<<locked>>
81%
37666
60%
**93
98%
[Somchem S361]*
<<locked>>
94%
43236
69%
**69
90%
Somchem S365
<<locked>>
81%
27485
44%
**33
96%
[Somchem S385]*
<<locked>>
89%
32953
52%
**11
90%
Vihtavuori N133
<<locked>>
81%
47747
76%
**62
100%
Vihtavuori N135
<<locked>>
81%
41075
65%
**13
100%
Vihtavuori N140
<<locked>>
81%
43627
69%
**56
100%
Vihtavuori N150
<<locked>>
81%
35621
56%
**31
99%
[Vihtavuori N160]*
<<locked>>
81%
31879
51%
**82
94%
Vihtavuori N530
<<locked>>
81%
49124
78%
**71
100%
Vihtavuori N540
<<locked>>
81%
42380
67%
**52
100%
[Vihtavuori N550]*
<<locked>>
81%
31401
50%
**79
94%
[Vihtavuori N555]*
<<locked>>
82%
23801
38%
**21
90%
Winchester 6.5 StaBALL
<<locked>>
81%
31995
51%
**59
97%
Winchester 748
<<locked>>
81%
48892
77%
**13
100%
[Winchester 760]*
<<locked>>
81%
32706
52%
**21
91%
[Winchester StaBALL HD]*
<<locked>>
89%
24860
39%
**80
91%
Winchester StaBALL Match
<<locked>>
81%
44788
71%
**38
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.

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

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