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Load data for .300 Blaser Mag + .308 | 150gr | Speer BT FMJ

Recommended Powder(s):

.300 Blaser Mag + .308 | 150gr | Speer BT FMJ

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 150gr | Speer BT FMJ
Manufacturer SKU:
2018
Bullet Weight:
150gr | 9.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.170" | 29.7mm
Caliber:
.300 Blaser Mag load data
Case Length (l3):
2.519" | 64.0mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.399" | 10.1mm
Shank Seated Depth:
0.222" | 5.6mm
Case Capacity:
92.4 Grains of Water | 6.00 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
60916 psi | 4200 bar
LID:
LID_B6146_C351
Last updated:
2025-01-01
Recommended Twist Rate:
1:13 - 1:11

Load data for 158 loads in caliber .300 Blaser Mag with .308 | 150gr | Speer BT FMJ bullet and 79 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 2208
<<locked>>
87%
54737
90%
**71
100%
ADI AR 2209
<<locked>>
97%
52939
87%
**17
96%
[ADI AR 2213]*
<<locked>>
97%
47703
78%
**31
93%
Accurate 2700
<<locked>>
87%
54694
90%
**15
98%
Accurate 3100
<<locked>>
97%
45890
75%
**43
97%
Accurate 4064
<<locked>>
85%
54244
89%
**35
100%
Accurate 4350
<<locked>>
92%
54534
90%
**27
100%
Alliant Reloder- TS 15.5
<<locked>>
86%
54360
89%
**74
100%
Alliant Reloder-15
<<locked>>
84%
54665
90%
**07
100%
Alliant Reloder-16 👍
<<locked>>
94%
54201
89%
**69
100%
Alliant Reloder-17
<<locked>>
89%
54201
89%
**79
100%
Alliant Reloder-19
<<locked>>
97%
51909
85%
**94
96%
Alliant Reloder-22
<<locked>>
97%
46267
76%
**25
95%
Alliant Reloder-23
<<locked>>
97%
43947
72%
**82
100%
Alliant Reloder-25
<<locked>>
97%
38130
63%
**58
96%
Alliant Reloder-26
<<locked>>
97%
49690
82%
**69
99%
Hodgdon CFE223
<<locked>>
84%
54375
89%
**30
100%
Hodgdon H380
<<locked>>
85%
54143
89%
**81
99%
Hodgdon H414
<<locked>>
88%
54679
90%
**43
98%
Hodgdon H4350
<<locked>>
95%
54244
89%
**77
98%
[Hodgdon H4831 SC]*
<<locked>>
97%
49879
82%
**25
93%
Hodgdon Hybrid 100V
<<locked>>
96%
54331
89%
**94
100%
Hodgdon LVR 👍
<<locked>>
91%
54563
90%
**30
99%
Hodgdon Superperformance
<<locked>>
91%
54128
89%
**66
98%
Hodgdon VARGET
<<locked>>
87%
54563
90%
**61
100%
Hodgdon TrailBoss
<<locked>>
96%
34461
57%
**23
100%
IMR 3031
<<locked>>
83%
54027
89%
**51
100%
IMR 4064
<<locked>>
87%
54404
89%
**54
100%
IMR 4166 Enduron
<<locked>>
88%
54244
89%
**38
98%
IMR 4350
<<locked>>
93%
54259
89%
**77
98%
IMR 4451 Enduron
<<locked>>
89%
54563
90%
**68
98%
IMR 4831
<<locked>>
97%
52866
87%
**81
100%
IMR 4895
<<locked>>
83%
54737
90%
**07
100%
[IMR 4955 Enduron]*
<<locked>>
97%
49095
81%
**69
93%
[IMR 7828 SSC]*
<<locked>>
97%
48834
80%
**71
94%
Lovex S062
<<locked>>
85%
54462
89%
**45
100%
Lovex S065
<<locked>>
91%
54462
89%
**71
99%
Lovex S070
<<locked>>
92%
54360
89%
**81
98%
Lovex S071
<<locked>>
97%
38363
63%
**82
95%
Norma 203B
<<locked>>
85%
54679
90%
**94
100%
Norma 204
<<locked>>
93%
54752
90%
**30
97%
Norma MRP
<<locked>>
97%
48646
80%
**17
97%
Norma URP
<<locked>>
93%
54273
89%
**27
100%
Ramshot Big Game
<<locked>>
84%
54244
89%
**10
100%
Ramshot Hunter
<<locked>>
94%
54389
89%
**43
99%
Ramshot Magnum
<<locked>>
97%
44686
73%
**63
95%
ReloadSwiss RS 14
<<locked>>
97%
35259
58%
**69
100%
ReloadSwiss RS 50
<<locked>>
85%
54099
89%
**64
99%
ReloadSwiss RS 52
<<locked>>
84%
54027
89%
**07
100%
ReloadSwiss RS 60
<<locked>>
90%
54505
89%
**12
100%
ReloadSwiss RS 62 👍
<<locked>>
93%
54781
90%
**56
100%
ReloadSwiss RS 70 👍
<<locked>>
93%
54563
90%
**05
100%
Rottweil R 902
<<locked>>
83%
54186
89%
**25
100%
Rottweil R 903
<<locked>>
88%
54752
90%
**81
100%
Rottweil R 904
<<locked>>
96%
54056
89%
**74
95%
Rottweil R 905
<<locked>>
97%
51213
84%
**84
96%
Rottweil R 907
<<locked>>
90%
54766
90%
**71
98%
SNPE Vectan SP 11
<<locked>>
87%
54505
89%
**10
100%
SNPE Vectan Tubal 5000
<<locked>>
87%
54549
90%
**53
100%
SNPE Vectan Tubal 7000
<<locked>>
91%
54607
90%
**12
98%
Shooters World Long Rifle
<<locked>>
91%
54462
89%
**71
99%
Shooters World Precision
<<locked>>
85%
54462
89%
**45
100%
Somchem S355
<<locked>>
88%
54679
90%
**77
100%
Somchem S361
<<locked>>
96%
54462
89%
**48
95%
Somchem S365 👍
<<locked>>
96%
54331
89%
**50
100%
Somchem S385
<<locked>>
97%
52417
86%
**64
97%
Vihtavuori N133
<<locked>>
84%
54708
90%
**49
100%
Vihtavuori N135
<<locked>>
89%
54317
89%
**95
100%
Vihtavuori N140
<<locked>>
83%
54041
89%
**92
100%
Vihtavuori N150
<<locked>>
93%
54592
90%
**35
100%
Vihtavuori N160
<<locked>>
90%
54186
89%
**81
100%
Vihtavuori N165
<<locked>>
97%
43337
71%
**84
95%
Vihtavuori N540
<<locked>>
84%
54462
89%
**28
100%
Vihtavuori N550
<<locked>>
90%
54418
89%
**30
100%
Vihtavuori N555
<<locked>>
97%
48950
80%
**71
100%
[Vihtavuori N560]*
<<locked>>
97%
46282
76%
**45
92%
Winchester 6.5 StaBALL
<<locked>>
92%
54563
90%
**64
100%
Winchester 760
<<locked>>
88%
54679
90%
**43
98%
Winchester StaBALL HD
<<locked>>
97%
37333
61%
**09
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
45963
75%
**04
99%
[ADI AR 2209]*
<<locked>>
85%
36463
60%
**53
90%
[ADI AR 2213]*
<<locked>>
92%
40843
67%
**67
90%
Accurate 2700
<<locked>>
81%
44208
73%
**18
95%
[Accurate 3100]*
<<locked>>
83%
28108
46%
**13
90%
Accurate 4064
<<locked>>
81%
48399
79%
**46
100%
Accurate 4350
<<locked>>
81%
36651
60%
**72
97%
Alliant Reloder- TS 15.5
<<locked>>
81%
46093
76%
**36
100%
Alliant Reloder-15
<<locked>>
81%
49356
81%
**02
100%
Alliant Reloder-16
<<locked>>
81%
35897
59%
**82
97%
Alliant Reloder-17
<<locked>>
81%
40611
67%
**23
99%
[Alliant Reloder-19]*
<<locked>>
85%
35114
58%
**23
90%
[Alliant Reloder-22]*
<<locked>>
89%
35375
58%
**72
90%
[Alliant Reloder-23]*
<<locked>>
81%
26281
43%
**00
93%
[Alliant Reloder-25]*
<<locked>>
89%
29356
48%
**95
90%
[Alliant Reloder-26]*
<<locked>>
81%
27804
46%
**92
90%
Hodgdon CFE223
<<locked>>
81%
48530
80%
**18
99%
Hodgdon H380
<<locked>>
81%
47021
77%
**59
99%
Hodgdon H414
<<locked>>
81%
42134
69%
**00
95%
[Hodgdon H4350]*
<<locked>>
81%
34809
57%
**64
91%
[Hodgdon H4831 SC]*
<<locked>>
92%
41611
68%
**54
90%
Hodgdon Hybrid 100V
<<locked>>
81%
33489
55%
**71
97%
Hodgdon LVR
<<locked>>
81%
39537
65%
**25
97%
[Hodgdon Superperformance]*
<<locked>>
81%
37855
62%
**18
93%
Hodgdon VARGET
<<locked>>
81%
45556
75%
**00
99%
Hodgdon TrailBoss
<<locked>>
81%
27601
45%
**62
100%
IMR 3031
<<locked>>
81%
50589
83%
**92
100%
IMR 4064
<<locked>>
81%
45136
74%
**81
99%
IMR 4166 Enduron
<<locked>>
81%
44570
73%
**51
96%
[IMR 4350]*
<<locked>>
81%
36680
60%
**07
92%
IMR 4451 Enduron
<<locked>>
81%
42540
70%
**35
95%
IMR 4831
<<locked>>
81%
32140
53%
**31
95%
IMR 4895
<<locked>>
81%
50691
83%
**41
100%
[IMR 4955 Enduron]*
<<locked>>
90%
40205
66%
**85
90%
[IMR 7828 SSC]*
<<locked>>
92%
40553
67%
**81
90%
Lovex S062
<<locked>>
81%
48515
80%
**49
100%
Lovex S065
<<locked>>
81%
39958
66%
**72
96%
[Lovex S070]*
<<locked>>
81%
38203
63%
**53
94%
[Lovex S071]*
<<locked>>
87%
28108
46%
**13
90%
Norma 203B
<<locked>>
81%
48863
80%
**92
100%
[Norma 204]*
<<locked>>
81%
36201
59%
**26
90%
[Norma MRP]*
<<locked>>
85%
32140
53%
**03
90%
Norma URP
<<locked>>
81%
36622
60%
**69
96%
Ramshot Big Game
<<locked>>
81%
49269
81%
**18
100%
[Ramshot Hunter]*
<<locked>>
81%
35505
58%
**46
94%
[Ramshot Magnum]*
<<locked>>
90%
34606
57%
**23
90%
ReloadSwiss RS 14
<<locked>>
81%
27920
46%
**01
100%
ReloadSwiss RS 50
<<locked>>
81%
47224
78%
**36
97%
ReloadSwiss RS 52
<<locked>>
81%
48718
80%
**18
100%
ReloadSwiss RS 60
<<locked>>
81%
39450
65%
**10
100%
ReloadSwiss RS 62
<<locked>>
81%
36318
60%
**89
96%
ReloadSwiss RS 70
<<locked>>
81%
35636
58%
**89
95%
Rottweil R 902
<<locked>>
81%
50227
82%
**56
100%
Rottweil R 903
<<locked>>
81%
43816
72%
**90
100%
[Rottweil R 904]*
<<locked>>
86%
38653
63%
**66
90%
[Rottweil R 905]*
<<locked>>
85%
34403
56%
**13
90%
[Rottweil R 907]*
<<locked>>
81%
41046
67%
**99
94%
SNPE Vectan SP 11
<<locked>>
81%
44991
74%
**36
99%
SNPE Vectan Tubal 5000
<<locked>>
81%
45498
75%
**05
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
39276
64%
**23
95%
Shooters World Long Rifle
<<locked>>
81%
39958
66%
**72
96%
Shooters World Precision
<<locked>>
81%
48515
80%
**49
100%
Somchem S355
<<locked>>
81%
44150
72%
**84
100%
[Somchem S361]*
<<locked>>
87%
41031
67%
**79
90%
Somchem S365
<<locked>>
81%
32967
54%
**20
98%
[Somchem S385]*
<<locked>>
82%
32068
53%
**21
90%
Vihtavuori N133
<<locked>>
81%
50705
83%
**87
100%
Vihtavuori N135
<<locked>>
81%
42801
70%
**02
100%
Vihtavuori N140
<<locked>>
81%
50082
82%
**36
100%
Vihtavuori N150
<<locked>>
81%
37811
62%
**26
99%
Vihtavuori N160
<<locked>>
81%
39740
65%
**08
97%
[Vihtavuori N165]*
<<locked>>
89%
33460
55%
**41
90%
Vihtavuori N540
<<locked>>
81%
49908
82%
**59
100%
Vihtavuori N550
<<locked>>
81%
40118
66%
**51
97%
[Vihtavuori N555]*
<<locked>>
81%
28616
47%
**89
94%
[Vihtavuori N560]*
<<locked>>
93%
41205
68%
**20
90%
Winchester 6.5 StaBALL
<<locked>>
81%
37521
62%
**49
99%
Winchester 760
<<locked>>
81%
42134
69%
**00
95%
[Winchester StaBALL HD]*
<<locked>>
82%
24120
40%
**67
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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