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Load data for 8.5 x 55 Blaser + .338 | 250gr | Speer Grand Slam

Recommended Powder(s):

8.5 x 55 Blaser + .338 | 250gr | Speer Grand Slam

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 250gr | Speer Grand Slam
Manufacturer SKU:
2408
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
<<locked>>
Caliber:
8.5 x 55 Blaser load data
Case Length (l3):
2.150" | 54.6mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
77.0 Grains of Water | 5.00 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
62366 psi | 4300 bar
LID:
LID_B6195_C1204
Last updated:
2026-01-21

Load data for 200 loads in caliber 8.5 x 55 Blaser with .338 | 250gr | Speer Grand Slam bullet and 100 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 2206H
<<locked>>
87%
55448
89%
**80
100%
ADI AR 2208
<<locked>>
92%
56072
90%
**80
100%
[ADI AR 2209]*
<<locked>>
97%
43743
70%
**62
94%
Accurate 2200
<<locked>>
85%
55419
89%
**54
100%
Accurate 2495
<<locked>>
85%
55230
89%
**28
100%
Accurate 2520
<<locked>>
85%
55448
89%
**64
100%
Accurate 2700
<<locked>>
93%
56101
90%
**31
98%
Accurate 3100
<<locked>>
97%
36100
58%
**34
95%
Accurate 4064
<<locked>>
91%
56115
90%
**64
100%
Accurate 4350
<<locked>>
97%
50937
82%
**87
100%
Alliant AR-Comp
<<locked>>
85%
55288
89%
**05
100%
Alliant Power Pro 2000-MR
<<locked>>
89%
55724
89%
**98
100%
Alliant Reloder- TS 15.5
<<locked>>
92%
56072
90%
**97
100%
Alliant Reloder-15
<<locked>>
90%
55158
88%
**97
100%
Alliant Reloder-16
<<locked>>
97%
49632
80%
**93
100%
Alliant Reloder-17 👍
<<locked>>
96%
55724
89%
**02
100%
[Alliant Reloder-19]*
<<locked>>
97%
42975
69%
**59
94%
[Alliant Reloder-22]*
<<locked>>
97%
37565
60%
**97
92%
Alliant Reloder-23
<<locked>>
97%
35665
57%
**77
99%
[Alliant Reloder-25]*
<<locked>>
97%
31227
50%
**62
93%
Alliant Reloder-26
<<locked>>
97%
38812
62%
**98
98%
Baschieri & Pellagri 107
<<locked>>
87%
55825
90%
**07
100%
Bofors RP3
<<locked>>
92%
55608
89%
**03
100%
[Bofors RP5]*
<<locked>>
97%
37565
60%
**97
92%
Bofors RP7
<<locked>>
96%
55912
90%
**74
98%
Hodgdon BL-C2
<<locked>>
85%
55680
89%
**03
100%
Hodgdon Benchmark
<<locked>>
84%
55463
89%
**08
100%
Hodgdon CFE223 👍
<<locked>>
90%
55405
89%
**39
100%
Hodgdon H322
<<locked>>
83%
55187
88%
**25
100%
Hodgdon H380
<<locked>>
91%
55651
89%
**00
100%
Hodgdon H414
<<locked>>
95%
56028
90%
**66
99%
Hodgdon H4350
<<locked>>
97%
48269
77%
**95
97%
Hodgdon Hybrid 100V
<<locked>>
97%
46398
74%
**95
100%
Hodgdon LVR 👍
<<locked>>
97%
54752
88%
**30
100%
Hodgdon Superperformance
<<locked>>
97%
54824
88%
**72
98%
Hodgdon VARGET
<<locked>>
92%
55463
89%
**67
100%
IMR 3031
<<locked>>
89%
55463
89%
**64
100%
IMR 4064
<<locked>>
93%
55492
89%
**61
100%
IMR 4166 Enduron
<<locked>>
93%
55332
89%
**44
98%
IMR 4350
<<locked>>
97%
50546
81%
**25
97%
IMR 4451 Enduron
<<locked>>
95%
55840
90%
**80
99%
IMR 4831
<<locked>>
97%
43352
70%
**59
99%
IMR 4895
<<locked>>
89%
55854
90%
**13
100%
IMR 8208 XBR
<<locked>>
85%
55434
89%
**48
100%
Lovex D073.6
<<locked>>
87%
55767
89%
**64
100%
Lovex S060
<<locked>>
87%
55216
89%
**18
100%
Lovex S062
<<locked>>
90%
55172
88%
**57
100%
Lovex S065
<<locked>>
97%
55506
89%
**77
99%
Lovex S070
<<locked>>
97%
52533
84%
**57
98%
[Lovex S071]*
<<locked>>
97%
30443
49%
**13
93%
Norma 201
<<locked>>
87%
55376
89%
**48
100%
Norma 202
<<locked>>
87%
55782
89%
**44
100%
Norma 203B
<<locked>>
90%
55405
89%
**00
100%
Norma 204
<<locked>>
97%
51372
82%
**74
96%
Norma MRP
<<locked>>
97%
39392
63%
**69
95%
Norma URP
<<locked>>
97%
50241
81%
**77
100%
Ramshot Big Game
<<locked>>
90%
55622
89%
**20
100%
Ramshot Hunter
<<locked>>
97%
49690
80%
**84
99%
Ramshot TAC
<<locked>>
85%
55767
89%
**74
99%
Ramshot Wild Boar
<<locked>>
85%
55579
89%
**90
100%
ReloadSwiss RS 50
<<locked>>
91%
55738
89%
**84
99%
ReloadSwiss RS 52
<<locked>>
88%
55941
90%
**59
100%
ReloadSwiss RS 60
<<locked>>
94%
55811
89%
**02
100%
ReloadSwiss RS 62
<<locked>>
97%
50517
81%
**10
100%
ReloadSwiss RS 70
<<locked>>
97%
51082
82%
**43
99%
Rottweil R 901
<<locked>>
85%
55796
89%
**15
100%
Rottweil R 902
<<locked>>
89%
55869
90%
**48
100%
Rottweil R 903
<<locked>>
94%
55825
90%
**93
100%
[Rottweil R 904]*
<<locked>>
97%
45484
73%
**49
93%
[Rottweil R 905]*
<<locked>>
97%
41307
66%
**39
94%
Rottweil R 907
<<locked>>
96%
55912
90%
**74
98%
SNPE Vectan SP 11
<<locked>>
93%
55854
90%
**30
100%
SNPE Vectan SP 7
<<locked>>
86%
55825
90%
**74
100%
SNPE Vectan SP 9
<<locked>>
88%
55840
90%
**84
100%
SNPE Vectan Tubal 3000
<<locked>>
86%
55216
89%
**65
100%
SNPE Vectan Tubal 5000
<<locked>>
92%
55100
88%
**62
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
55042
88%
**31
98%
Shooters World Long Rifle
<<locked>>
97%
55506
89%
**77
99%
Shooters World Match Rifle
<<locked>>
87%
55767
89%
**64
100%
Shooters World Precision
<<locked>>
90%
55172
88%
**57
100%
Somchem S335
<<locked>>
87%
55332
89%
**75
100%
Somchem S341
<<locked>>
86%
56130
90%
**74
100%
Somchem S355
<<locked>>
94%
55898
90%
**90
100%
[Somchem S361]*
<<locked>>
97%
47065
75%
**49
93%
Somchem S365
<<locked>>
97%
45020
72%
**34
100%
Somchem S385
<<locked>>
97%
42148
68%
**36
95%
Vihtavuori N130
<<locked>>
83%
55535
89%
**39
100%
Vihtavuori N133
<<locked>>
89%
55492
89%
**56
100%
Vihtavuori N135
<<locked>>
95%
55448
89%
**11
100%
Vihtavuori N140
<<locked>>
89%
55695
89%
**21
100%
Vihtavuori N150
<<locked>>
96%
51735
83%
**02
100%
Vihtavuori N160 👍
<<locked>>
97%
55666
89%
**07
100%
[Vihtavuori N165]*
<<locked>>
97%
35389
57%
**85
92%
Vihtavuori N530
<<locked>>
84%
56072
90%
**64
100%
Vihtavuori N540
<<locked>>
89%
55274
89%
**44
100%
Vihtavuori N550 👍
<<locked>>
97%
55782
89%
**49
100%
Vihtavuori N555
<<locked>>
97%
38653
62%
**43
99%
Winchester 6.5 StaBALL
<<locked>>
97%
52997
85%
**61
100%
Winchester 760
<<locked>>
95%
56028
90%
**66
99%
Winchester StaBALL HD
<<locked>>
97%
31633
51%
**70
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
46717
75%
**56
100%
ADI AR 2208
<<locked>>
81%
39552
63%
**24
98%
[ADI AR 2209]*
<<locked>>
89%
34621
56%
**78
90%
Accurate 2200
<<locked>>
81%
48805
78%
**62
99%
Accurate 2495
<<locked>>
81%
48530
78%
**43
100%
Accurate 2520
<<locked>>
81%
48718
78%
**75
100%
[Accurate 2700]*
<<locked>>
81%
38000
61%
**56
94%
[Accurate 3100]*
<<locked>>
87%
25846
41%
**98
90%
Accurate 4064
<<locked>>
81%
40915
66%
**57
100%
Accurate 4350
<<locked>>
81%
29834
48%
**06
95%
Alliant AR-Comp
<<locked>>
81%
49226
79%
**39
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
42409
68%
**98
99%
Alliant Reloder- TS 15.5
<<locked>>
81%
39552
63%
**54
100%
Alliant Reloder-15
<<locked>>
81%
42221
68%
**03
99%
Alliant Reloder-16
<<locked>>
81%
30516
49%
**19
95%
Alliant Reloder-17
<<locked>>
81%
33997
55%
**34
98%
[Alliant Reloder-19]*
<<locked>>
89%
33475
54%
**65
90%
[Alliant Reloder-22]*
<<locked>>
93%
33591
54%
**11
90%
[Alliant Reloder-23]*
<<locked>>
81%
22089
35%
**03
91%
[Alliant Reloder-25]*
<<locked>>
93%
27717
44%
**64
90%
[Alliant Reloder-26]*
<<locked>>
84%
25527
41%
**54
90%
Baschieri & Pellagri 107
<<locked>>
81%
45701
73%
**65
99%
Bofors RP3
<<locked>>
81%
38798
62%
**51
99%
[Bofors RP5]*
<<locked>>
93%
33591
54%
**11
90%
[Bofors RP7]*
<<locked>>
81%
35259
57%
**36
93%
Hodgdon BL-C2
<<locked>>
81%
48269
77%
**05
100%
Hodgdon Benchmark
<<locked>>
81%
50734
81%
**46
100%
Hodgdon CFE223
<<locked>>
81%
40364
65%
**13
98%
Hodgdon H322
<<locked>>
81%
51706
83%
**82
100%
Hodgdon H380
<<locked>>
81%
39929
64%
**60
98%
[Hodgdon H414]*
<<locked>>
81%
35215
56%
**15
94%
[Hodgdon H4350]*
<<locked>>
82%
30269
49%
**44
90%
Hodgdon Hybrid 100V
<<locked>>
81%
27905
45%
**31
96%
Hodgdon LVR
<<locked>>
81%
33243
53%
**62
95%
[Hodgdon Superperformance]*
<<locked>>
81%
31618
51%
**42
91%
Hodgdon VARGET
<<locked>>
81%
39320
63%
**21
98%
IMR 3031
<<locked>>
81%
43178
69%
**00
100%
IMR 4064
<<locked>>
81%
38885
62%
**05
99%
IMR 4166 Enduron
<<locked>>
81%
38769
62%
**78
95%
[IMR 4350]*
<<locked>>
81%
31140
50%
**70
91%
[IMR 4451 Enduron]*
<<locked>>
81%
36825
59%
**65
94%
[IMR 4831]*
<<locked>>
81%
26440
42%
**08
93%
IMR 4895
<<locked>>
81%
43308
69%
**29
100%
IMR 8208 XBR
<<locked>>
81%
48834
78%
**59
100%
Lovex D073.6
<<locked>>
81%
46050
74%
**36
100%
Lovex S060
<<locked>>
81%
46557
75%
**00
100%
Lovex S062
<<locked>>
81%
41553
67%
**57
100%
Lovex S065
<<locked>>
81%
34171
55%
**26
95%
[Lovex S070]*
<<locked>>
81%
32300
52%
**96
93%
[Lovex S071]*
<<locked>>
92%
25846
41%
**98
90%
Norma 201
<<locked>>
81%
45774
73%
**16
100%
Norma 202
<<locked>>
81%
46195
74%
**16
100%
Norma 203B
<<locked>>
81%
41727
67%
**97
99%
[Norma 204]*
<<locked>>
84%
33997
55%
**59
90%
[Norma MRP]*
<<locked>>
89%
30560
49%
**65
90%
Norma URP
<<locked>>
81%
30313
49%
**13
95%
Ramshot Big Game
<<locked>>
81%
41147
66%
**10
99%
[Ramshot Hunter]*
<<locked>>
81%
29704
48%
**93
92%
Ramshot TAC
<<locked>>
81%
48660
78%
**72
99%
Ramshot Wild Boar
<<locked>>
81%
48269
77%
**88
100%
ReloadSwiss RS 50
<<locked>>
81%
40408
65%
**47
96%
ReloadSwiss RS 52
<<locked>>
81%
44280
71%
**95
99%
ReloadSwiss RS 60
<<locked>>
81%
36172
58%
**87
100%
[ReloadSwiss RS 62]*
<<locked>>
81%
29689
48%
**19
94%
[ReloadSwiss RS 70]*
<<locked>>
81%
29979
48%
**19
93%
Rottweil R 901
<<locked>>
81%
49995
80%
**43
100%
Rottweil R 902
<<locked>>
81%
43410
70%
**70
100%
Rottweil R 903
<<locked>>
81%
36666
59%
**05
99%
[Rottweil R 904]*
<<locked>>
90%
36970
59%
**95
90%
[Rottweil R 905]*
<<locked>>
89%
32489
52%
**59
90%
[Rottweil R 907]*
<<locked>>
81%
35259
57%
**36
93%
SNPE Vectan SP 11
<<locked>>
81%
37594
60%
**51
99%
SNPE Vectan SP 7
<<locked>>
81%
46891
75%
**49
99%
SNPE Vectan SP 9
<<locked>>
81%
44976
72%
**29
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
47108
76%
**60
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
39102
63%
**49
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
33373
54%
**77
93%
Shooters World Long Rifle
<<locked>>
81%
34171
55%
**26
95%
Shooters World Match Rifle
<<locked>>
81%
46050
74%
**36
100%
Shooters World Precision
<<locked>>
81%
41553
67%
**57
100%
Somchem S335
<<locked>>
81%
46760
75%
**67
100%
Somchem S341
<<locked>>
81%
46485
75%
**43
100%
Somchem S355
<<locked>>
81%
37536
60%
**08
99%
[Somchem S361]*
<<locked>>
92%
39755
64%
**28
90%
Somchem S365
<<locked>>
81%
27224
44%
**70
97%
[Somchem S385]*
<<locked>>
86%
30081
48%
**87
90%
Vihtavuori N130
<<locked>>
81%
52359
84%
**00
100%
Vihtavuori N133
<<locked>>
81%
44324
71%
**11
100%
Vihtavuori N135
<<locked>>
81%
36782
59%
**52
100%
Vihtavuori N140
<<locked>>
81%
43294
69%
**54
100%
Vihtavuori N150
<<locked>>
81%
32169
52%
**83
99%
Vihtavuori N160
<<locked>>
81%
33243
53%
**42
96%
[Vihtavuori N165]*
<<locked>>
93%
31647
51%
**03
90%
Vihtavuori N530
<<locked>>
81%
51793
83%
**08
100%
Vihtavuori N540
<<locked>>
81%
42496
68%
**70
100%
Vihtavuori N550
<<locked>>
81%
33475
54%
**82
96%
[Vihtavuori N555]*
<<locked>>
81%
23351
37%
**69
92%
Winchester 6.5 StaBALL
<<locked>>
81%
31488
50%
**93
98%
[Winchester 760]*
<<locked>>
81%
35215
56%
**15
94%
[Winchester StaBALL HD]*
<<locked>>
86%
22394
36%
**52
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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