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Load data for .300 Weath. Mag. + .308 | 180gr | Speer TBBC

Recommended Powder(s):

.300 Weath. Mag. + .308 | 180gr | Speer TBBC

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 180gr | Speer TBBC
Manufacturer SKU:
1765
Bullet Weight:
180gr | 11.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.267" | 32.2mm
Caliber:
.300 Weath. Mag. load data
Case Length (l3):
2.824" | 71.7mm
Cartridge Length (C.O.L.):
3.507" | 89.1mm
Seated Depth:
0.584" | 14.8mm
Shank Seated Depth:
0.584" | 14.8mm
Case Capacity:
98.9 Grains of Water | 6.42 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B6172_C379
Last updated:
2025-01-01

Load data for 144 loads in caliber .300 Weath. Mag. with .308 | 180gr | Speer TBBC bullet and 72 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>>
83%
57392
90%
**71
100%
ADI AR 2209
<<locked>>
94%
57130
90%
**66
99%
ADI AR 2213
<<locked>>
97%
57101
89%
**95
98%
[ADI AR 2217]*
<<locked>>
97%
41930
66%
**03
94%
ADI AR 2225
<<locked>>
97%
37536
59%
**67
97%
Accurate 2700
<<locked>>
84%
56956
89%
**31
99%
Accurate 3100 👍
<<locked>>
97%
57203
90%
**10
100%
Accurate 4350
<<locked>>
88%
57421
90%
**33
100%
Accurate MAGPRO
<<locked>>
97%
55985
88%
**95
96%
Alliant Reloder-16
<<locked>>
90%
57014
89%
**72
100%
Alliant Reloder-17
<<locked>>
85%
57334
90%
**66
100%
Alliant Reloder-19
<<locked>>
94%
57087
89%
**59
99%
Alliant Reloder-22 👍
<<locked>>
97%
56927
89%
**02
99%
Alliant Reloder-23
<<locked>>
97%
54346
85%
**27
100%
Alliant Reloder-25
<<locked>>
97%
46586
73%
**51
100%
Alliant Reloder-26 👍
<<locked>>
94%
56782
89%
**41
100%
[Hodgdon H1000]*
<<locked>>
97%
41930
66%
**03
94%
Hodgdon H414
<<locked>>
84%
56753
89%
**43
100%
Hodgdon H4350
<<locked>>
91%
57290
90%
**04
100%
Hodgdon H4831
<<locked>>
97%
53069
83%
**74
97%
Hodgdon H4831 SC
<<locked>>
95%
57029
89%
**33
98%
Hodgdon Hybrid 100V
<<locked>>
91%
57000
89%
**87
100%
Hodgdon LVR
<<locked>>
87%
57014
89%
**23
100%
Hodgdon Retumbo
<<locked>>
97%
37536
59%
**67
97%
Hodgdon Superperformance
<<locked>>
87%
57203
90%
**89
100%
Hodgdon VARGET
<<locked>>
83%
57188
90%
**71
100%
Hodgdon TrailBoss
<<locked>>
97%
35375
55%
**81
100%
IMR 4064
<<locked>>
84%
57348
90%
**58
100%
IMR 4166 Enduron
<<locked>>
85%
56826
89%
**61
100%
IMR 4350
<<locked>>
90%
57290
90%
**04
100%
IMR 4451 Enduron
<<locked>>
86%
57145
90%
**84
100%
IMR 4831
<<locked>>
93%
57348
90%
**20
100%
IMR 4955 Enduron
<<locked>>
96%
57203
90%
**04
98%
IMR 7828 SSC
<<locked>>
96%
56869
89%
**05
98%
Lovex S065
<<locked>>
87%
56971
89%
**81
100%
Lovex S070
<<locked>>
88%
57101
89%
**97
100%
Lovex S071
<<locked>>
97%
47659
75%
**66
99%
Norma 204
<<locked>>
89%
57043
89%
**36
99%
[Norma 217]*
<<locked>>
97%
33185
52%
**82
94%
Norma MRP 👍
<<locked>>
95%
56710
89%
**28
100%
Norma URP
<<locked>>
89%
56913
89%
**27
100%
Ramshot Hunter
<<locked>>
89%
56971
89%
**53
100%
Ramshot Magnum
<<locked>>
97%
55245
87%
**59
99%
ReloadSwiss RS 14
<<locked>>
96%
36114
57%
**24
100%
ReloadSwiss RS 60
<<locked>>
86%
57276
90%
**95
100%
ReloadSwiss RS 62
<<locked>>
88%
57014
89%
**49
100%
ReloadSwiss RS 70
<<locked>>
89%
56971
89%
**05
100%
ReloadSwiss RS 76
<<locked>>
97%
45948
72%
**00
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
41017
64%
**56
93%
Rottweil R 903
<<locked>>
84%
57130
90%
**71
100%
Rottweil R 904
<<locked>>
93%
57392
90%
**13
98%
Rottweil R 905
<<locked>>
94%
56927
89%
**56
99%
Rottweil R 907
<<locked>>
87%
57305
90%
**84
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
57290
90%
**43
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
57348
90%
**48
100%
Shooters World Long Rifle
<<locked>>
87%
56971
89%
**81
100%
Somchem S355
<<locked>>
84%
57392
90%
**71
100%
Somchem S361
<<locked>>
92%
57305
90%
**77
98%
Somchem S365
<<locked>>
91%
56579
89%
**27
100%
Somchem S385 👍
<<locked>>
94%
56942
89%
**20
100%
Vihtavuori N135
<<locked>>
85%
56855
89%
**69
100%
Vihtavuori N150
<<locked>>
89%
57290
90%
**35
100%
Vihtavuori N160
<<locked>>
87%
57232
90%
**94
100%
Vihtavuori N165
<<locked>>
97%
52779
83%
**41
99%
Vihtavuori N550
<<locked>>
86%
57246
90%
**30
100%
Vihtavuori N555
<<locked>>
95%
56797
89%
**56
100%
Vihtavuori N560
<<locked>>
97%
56898
89%
**18
98%
Vihtavuori N565
<<locked>>
97%
49008
77%
**64
96%
[Vihtavuori N568]*
<<locked>>
97%
42902
67%
**79
93%
Winchester 6.5 StaBALL
<<locked>>
88%
57377
90%
**64
100%
Winchester 760
<<locked>>
84%
56753
89%
**43
100%
Winchester StaBALL HD
<<locked>>
97%
50575
79%
**95
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
53432
84%
**08
100%
[ADI AR 2209]*
<<locked>>
81%
37724
59%
**92
94%
[ADI AR 2213]*
<<locked>>
81%
33605
53%
**10
90%
[ADI AR 2217]*
<<locked>>
90%
33881
53%
**07
90%
[ADI AR 2225]*
<<locked>>
88%
28268
44%
**88
90%
Accurate 2700
<<locked>>
81%
51692
81%
**49
99%
Accurate 3100
<<locked>>
81%
33475
52%
**61
96%
Accurate 4350
<<locked>>
81%
45136
71%
**26
100%
[Accurate MAGPRO]*
<<locked>>
85%
37594
59%
**31
90%
Alliant Reloder-16
<<locked>>
81%
43062
67%
**36
100%
Alliant Reloder-17
<<locked>>
81%
49661
78%
**51
100%
[Alliant Reloder-19]*
<<locked>>
81%
37579
59%
**89
94%
[Alliant Reloder-22]*
<<locked>>
81%
33475
52%
**23
93%
Alliant Reloder-23
<<locked>>
81%
32126
50%
**90
99%
[Alliant Reloder-25]*
<<locked>>
81%
28210
44%
**92
94%
Alliant Reloder-26
<<locked>>
81%
34824
55%
**18
98%
[Hodgdon H1000]*
<<locked>>
90%
33881
53%
**07
90%
Hodgdon H414
<<locked>>
81%
50894
80%
**54
99%
Hodgdon H4350
<<locked>>
81%
41495
65%
**18
97%
[Hodgdon H4831]*
<<locked>>
83%
34156
54%
**80
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
35201
55%
**03
91%
Hodgdon Hybrid 100V
<<locked>>
81%
40843
64%
**21
100%
Hodgdon LVR
<<locked>>
81%
47326
74%
**72
100%
[Hodgdon Retumbo]*
<<locked>>
88%
28268
44%
**88
90%
Hodgdon Superperformance
<<locked>>
81%
46224
72%
**99
98%
Hodgdon VARGET
<<locked>>
81%
53113
83%
**08
100%
Hodgdon TrailBoss
<<locked>>
83%
29124
46%
**50
100%
IMR 4064
<<locked>>
81%
52591
82%
**89
100%
IMR 4166 Enduron
<<locked>>
81%
51053
80%
**66
99%
IMR 4350
<<locked>>
81%
43598
68%
**67
98%
IMR 4451 Enduron
<<locked>>
81%
49414
77%
**62
99%
IMR 4831
<<locked>>
81%
38856
61%
**92
99%
[IMR 4955 Enduron]*
<<locked>>
81%
35781
56%
**84
91%
[IMR 7828 SSC]*
<<locked>>
81%
34418
54%
**43
91%
Lovex S065
<<locked>>
81%
46949
74%
**10
99%
Lovex S070
<<locked>>
81%
45484
71%
**00
99%
[Lovex S071]*
<<locked>>
81%
28863
45%
**43
94%
Norma 204
<<locked>>
81%
43439
68%
**90
96%
[Norma 217]*
<<locked>>
92%
28311
44%
**25
90%
Norma MRP
<<locked>>
81%
34969
55%
**89
95%
Norma URP
<<locked>>
81%
44324
69%
**17
100%
Ramshot Hunter
<<locked>>
81%
43004
67%
**03
99%
[Ramshot Magnum]*
<<locked>>
81%
30821
48%
**41
92%
ReloadSwiss RS 14
<<locked>>
81%
28790
45%
**70
100%
ReloadSwiss RS 60
<<locked>>
81%
47964
75%
**44
100%
ReloadSwiss RS 62
<<locked>>
81%
45092
71%
**56
100%
ReloadSwiss RS 70
<<locked>>
81%
43062
67%
**59
99%
[ReloadSwiss RS 76]*
<<locked>>
83%
28543
45%
**18
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
36114
57%
**41
90%
Rottweil R 903
<<locked>>
81%
52460
82%
**02
100%
[Rottweil R 904]*
<<locked>>
81%
39088
61%
**72
94%
[Rottweil R 905]*
<<locked>>
81%
36782
58%
**72
94%
Rottweil R 907
<<locked>>
81%
48341
76%
**40
98%
SNPE Vectan Tubal 5000
<<locked>>
81%
52417
82%
**80
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
45992
72%
**54
98%
Shooters World Long Rifle
<<locked>>
81%
46949
74%
**10
99%
Somchem S355
<<locked>>
81%
52025
82%
**95
100%
[Somchem S361]*
<<locked>>
81%
39697
62%
**59
93%
Somchem S365
<<locked>>
81%
41133
64%
**71
100%
Somchem S385
<<locked>>
81%
37579
59%
**59
96%
Vihtavuori N135
<<locked>>
81%
50850
80%
**94
100%
Vihtavuori N150
<<locked>>
81%
44860
70%
**41
100%
Vihtavuori N160
<<locked>>
81%
47630
75%
**40
100%
[Vihtavuori N165]*
<<locked>>
81%
31575
49%
**08
93%
Vihtavuori N550
<<locked>>
81%
48312
76%
**85
100%
Vihtavuori N555
<<locked>>
81%
35984
56%
**75
99%
[Vihtavuori N560]*
<<locked>>
81%
34026
53%
**46
90%
[Vihtavuori N565]*
<<locked>>
85%
32866
52%
**10
90%
[Vihtavuori N568]*
<<locked>>
93%
37405
59%
**57
90%
Winchester 6.5 StaBALL
<<locked>>
81%
44817
70%
**80
100%
Winchester 760
<<locked>>
81%
50894
80%
**54
99%
Winchester StaBALL HD
<<locked>>
81%
26890
42%
**93
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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