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Load data for .300 Weath. Mag. + .308 | 135gr | Sierra SP SSPistol

Recommended Powder(s):

.300 Weath. Mag. + .308 | 135gr | Sierra SP SSPistol

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 135gr | Sierra SP SSPistol
Manufacturer SKU:
7350
Bullet Weight:
135gr | 8.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
0.967" | 24.6mm
Caliber:
.300 Weath. Mag. load data
Case Length (l3):
2.824" | 71.7mm
Cartridge Length (C.O.L.):
3.507" | 89.1mm
Seated Depth:
0.284" | 7.2mm
Shank Seated Depth:
0.284" | 7.2mm
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_B5867_C379
Last updated:
2025-01-01

Load data for 162 loads in caliber .300 Weath. Mag. with .308 | 135gr | Sierra SP SSPistol bullet and 81 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".

  • 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 2208
<<locked>>
88%
57130
90%
**68
100%
ADI AR 2209
<<locked>>
97%
53983
85%
**91
96%
[ADI AR 2213]*
<<locked>>
97%
48182
76%
**79
92%
Accurate 2700
<<locked>>
88%
56898
89%
**02
98%
Accurate 3100
<<locked>>
97%
47224
74%
**10
97%
Accurate 4064
<<locked>>
86%
57319
90%
**51
100%
Accurate 4350 👍
<<locked>>
93%
57406
90%
**33
100%
Alliant Reloder- TS 15.5
<<locked>>
87%
57305
90%
**87
100%
Alliant Reloder-15
<<locked>>
85%
57174
90%
**97
100%
Alliant Reloder-16 👍
<<locked>>
95%
56869
89%
**79
100%
Alliant Reloder-17
<<locked>>
90%
57087
89%
**92
100%
Alliant Reloder-19
<<locked>>
97%
53316
84%
**68
96%
[Alliant Reloder-22]*
<<locked>>
97%
47007
74%
**89
94%
Alliant Reloder-23
<<locked>>
97%
44527
70%
**33
99%
Alliant Reloder-25
<<locked>>
97%
39059
61%
**12
95%
Alliant Reloder-26
<<locked>>
97%
50792
80%
**40
99%
Hodgdon CFE223
<<locked>>
85%
57087
89%
**30
100%
Hodgdon H380
<<locked>>
86%
57232
90%
**91
100%
Hodgdon H414
<<locked>>
89%
57072
89%
**46
98%
Hodgdon H4350
<<locked>>
96%
57014
89%
**81
98%
[Hodgdon H4831 SC]*
<<locked>>
97%
50560
79%
**76
93%
Hodgdon Hybrid 100V
<<locked>>
97%
57043
89%
**94
100%
Hodgdon LVR 👍
<<locked>>
91%
56927
89%
**33
99%
Hodgdon Superperformance
<<locked>>
91%
56811
89%
**63
98%
Hodgdon VARGET
<<locked>>
88%
56826
89%
**71
100%
Hodgdon TrailBoss
<<locked>>
96%
34345
54%
**54
100%
IMR 3031
<<locked>>
84%
57305
90%
**58
100%
IMR 4064
<<locked>>
88%
57203
90%
**58
100%
IMR 4166 Enduron
<<locked>>
89%
57000
89%
**51
98%
IMR 4350
<<locked>>
94%
57058
89%
**84
98%
IMR 4451 Enduron
<<locked>>
90%
57188
90%
**74
98%
IMR 4831
<<locked>>
97%
54563
86%
**68
100%
IMR 4895
<<locked>>
84%
57305
90%
**14
100%
[IMR 4955 Enduron]*
<<locked>>
97%
50111
79%
**43
93%
[IMR 7828 SSC]*
<<locked>>
97%
49342
77%
**19
93%
Lovex S060
<<locked>>
83%
57421
90%
**32
100%
Lovex S062
<<locked>>
86%
57072
89%
**58
100%
Lovex S065
<<locked>>
92%
57363
90%
**71
99%
Lovex S070
<<locked>>
93%
56710
89%
**71
98%
Lovex S071
<<locked>>
97%
39465
62%
**43
95%
Norma 203B
<<locked>>
85%
57130
90%
**94
100%
Norma 204
<<locked>>
94%
57101
89%
**20
97%
Norma MRP
<<locked>>
97%
49922
78%
**78
97%
Norma URP
<<locked>>
94%
56913
89%
**33
100%
Ramshot Big Game
<<locked>>
85%
56797
89%
**04
100%
Ramshot Hunter
<<locked>>
94%
57101
89%
**37
99%
Ramshot Magnum
<<locked>>
97%
45847
72%
**33
95%
ReloadSwiss RS 14
<<locked>>
96%
35114
55%
**03
100%
ReloadSwiss RS 50
<<locked>>
86%
56985
89%
**64
99%
ReloadSwiss RS 52
<<locked>>
85%
57087
89%
**07
100%
ReloadSwiss RS 60
<<locked>>
91%
57116
89%
**15
100%
ReloadSwiss RS 62 👍
<<locked>>
93%
57305
90%
**53
100%
ReloadSwiss RS 70
<<locked>>
94%
57159
90%
**92
100%
Rottweil R 902
<<locked>>
85%
57072
89%
**38
100%
Rottweil R 903
<<locked>>
89%
57246
90%
**81
100%
Rottweil R 904
<<locked>>
97%
55898
88%
**68
95%
Rottweil R 905
<<locked>>
97%
52518
82%
**51
96%
Rottweil R 907
<<locked>>
91%
57000
89%
**58
98%
SNPE Vectan SP 11
<<locked>>
88%
56869
89%
**10
100%
SNPE Vectan SP 9
<<locked>>
83%
57043
89%
**71
100%
SNPE Vectan Tubal 5000
<<locked>>
88%
56782
89%
**46
100%
SNPE Vectan Tubal 7000
<<locked>>
92%
56855
89%
**09
98%
Shooters World Long Rifle
<<locked>>
92%
57363
90%
**71
99%
Shooters World Precision
<<locked>>
86%
57072
89%
**58
100%
Somchem S355
<<locked>>
89%
57363
90%
**84
100%
Somchem S361
<<locked>>
96%
57188
90%
**38
95%
Somchem S365 👍
<<locked>>
96%
57377
90%
**50
100%
Somchem S385
<<locked>>
97%
53011
83%
**28
97%
Vihtavuori N133
<<locked>>
84%
56956
89%
**50
100%
Vihtavuori N135
<<locked>>
90%
57290
90%
**92
100%
Vihtavuori N140
<<locked>>
85%
57130
90%
**02
100%
Vihtavuori N150
<<locked>>
94%
56797
89%
**25
100%
Vihtavuori N160
<<locked>>
91%
57029
89%
**84
100%
[Vihtavuori N165]*
<<locked>>
97%
44483
70%
**48
94%
Vihtavuori N540
<<locked>>
85%
57421
90%
**32
100%
Vihtavuori N550
<<locked>>
91%
56956
89%
**23
100%
Vihtavuori N555
<<locked>>
97%
49748
78%
**28
99%
[Vihtavuori N560]*
<<locked>>
97%
47790
75%
**05
92%
Winchester 6.5 StaBALL
<<locked>>
93%
57072
89%
**58
100%
Winchester 760
<<locked>>
89%
57072
89%
**46
98%
Winchester StaBALL HD
<<locked>>
97%
38682
61%
**66
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
46398
73%
**71
99%
[ADI AR 2209]*
<<locked>>
86%
37710
59%
**23
90%
[ADI AR 2213]*
<<locked>>
93%
42714
67%
**58
90%
Accurate 2700
<<locked>>
81%
44759
70%
**69
95%
[Accurate 3100]*
<<locked>>
84%
30124
47%
**94
90%
Accurate 4064
<<locked>>
81%
49284
77%
**17
100%
Accurate 4350
<<locked>>
81%
37391
59%
**17
96%
Alliant Reloder- TS 15.5
<<locked>>
81%
46789
73%
**00
100%
Alliant Reloder-15
<<locked>>
81%
50270
79%
**73
99%
Alliant Reloder-16
<<locked>>
81%
36477
57%
**27
96%
Alliant Reloder-17
<<locked>>
81%
41466
65%
**87
99%
[Alliant Reloder-19]*
<<locked>>
86%
37608
59%
**20
90%
[Alliant Reloder-22]*
<<locked>>
90%
36985
58%
**43
90%
[Alliant Reloder-23]*
<<locked>>
81%
26600
42%
**25
92%
[Alliant Reloder-25]*
<<locked>>
90%
30908
48%
**59
90%
[Alliant Reloder-26]*
<<locked>>
82%
29182
46%
**56
90%
Hodgdon CFE223
<<locked>>
81%
49705
78%
**92
99%
Hodgdon H380
<<locked>>
81%
48022
75%
**17
98%
Hodgdon H414
<<locked>>
81%
42989
67%
**58
95%
[Hodgdon H4350]*
<<locked>>
81%
35404
55%
**05
91%
[Hodgdon H4831 SC]*
<<locked>>
92%
43816
69%
**41
90%
Hodgdon Hybrid 100V
<<locked>>
81%
33924
53%
**15
97%
Hodgdon LVR
<<locked>>
81%
40234
63%
**86
96%
[Hodgdon Superperformance]*
<<locked>>
81%
38682
61%
**76
93%
Hodgdon VARGET
<<locked>>
81%
46267
72%
**61
99%
Hodgdon TrailBoss
<<locked>>
81%
27615
43%
**90
100%
IMR 3031
<<locked>>
81%
51256
80%
**73
100%
IMR 4064
<<locked>>
81%
45687
72%
**45
99%
IMR 4166 Enduron
<<locked>>
81%
44744
70%
**05
95%
[IMR 4350]*
<<locked>>
81%
37101
58%
**51
92%
IMR 4451 Enduron
<<locked>>
81%
43062
67%
**89
95%
[IMR 4831]*
<<locked>>
81%
32430
51%
**76
94%
IMR 4895
<<locked>>
81%
51648
81%
**15
100%
[IMR 4955 Enduron]*
<<locked>>
91%
42134
66%
**66
90%
[IMR 7828 SSC]*
<<locked>>
93%
42699
67%
**68
90%
Lovex S060
<<locked>>
81%
53534
84%
**66
100%
Lovex S062
<<locked>>
81%
48936
77%
**17
100%
Lovex S065
<<locked>>
81%
40625
64%
**33
96%
[Lovex S070]*
<<locked>>
81%
38711
61%
**04
94%
[Lovex S071]*
<<locked>>
89%
29979
47%
**80
90%
Norma 203B
<<locked>>
81%
49763
78%
**59
100%
[Norma 204]*
<<locked>>
82%
37898
59%
**07
90%
[Norma MRP]*
<<locked>>
86%
33953
53%
**87
90%
Norma URP
<<locked>>
81%
37173
58%
**20
96%
Ramshot Big Game
<<locked>>
81%
50096
79%
**82
100%
[Ramshot Hunter]*
<<locked>>
81%
36085
57%
**87
93%
[Ramshot Magnum]*
<<locked>>
91%
36274
57%
**87
90%
ReloadSwiss RS 14
<<locked>>
81%
27833
44%
**29
100%
ReloadSwiss RS 50
<<locked>>
81%
48022
75%
**97
97%
ReloadSwiss RS 52
<<locked>>
81%
49327
77%
**73
100%
ReloadSwiss RS 60
<<locked>>
81%
40132
63%
**71
99%
ReloadSwiss RS 62
<<locked>>
81%
37159
58%
**40
96%
[ReloadSwiss RS 70]*
<<locked>>
81%
36260
57%
**36
94%
Rottweil R 902
<<locked>>
81%
50923
80%
**33
100%
Rottweil R 903
<<locked>>
81%
44440
70%
**48
99%
[Rottweil R 904]*
<<locked>>
87%
40582
64%
**43
90%
[Rottweil R 905]*
<<locked>>
86%
36767
58%
**00
90%
[Rottweil R 907]*
<<locked>>
81%
41669
65%
**56
94%
SNPE Vectan SP 11
<<locked>>
81%
45687
72%
**00
99%
SNPE Vectan SP 9
<<locked>>
81%
53142
83%
**15
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
45890
72%
**63
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
39914
63%
**71
94%
Shooters World Long Rifle
<<locked>>
81%
40625
64%
**33
96%
Shooters World Precision
<<locked>>
81%
48936
77%
**17
100%
Somchem S355
<<locked>>
81%
44904
70%
**48
99%
[Somchem S361]*
<<locked>>
88%
43062
67%
**53
90%
Somchem S365
<<locked>>
81%
33446
52%
**61
98%
[Somchem S385]*
<<locked>>
84%
34069
53%
**99
90%
Vihtavuori N133
<<locked>>
81%
51126
80%
**54
100%
Vihtavuori N135
<<locked>>
81%
43381
68%
**66
100%
Vihtavuori N140
<<locked>>
81%
50836
80%
**07
100%
Vihtavuori N150
<<locked>>
81%
38305
60%
**77
99%
Vihtavuori N160
<<locked>>
81%
40277
63%
**56
97%
[Vihtavuori N165]*
<<locked>>
90%
35360
55%
**22
90%
Vihtavuori N540
<<locked>>
81%
50633
79%
**23
100%
Vihtavuori N550
<<locked>>
81%
41046
64%
**02
97%
[Vihtavuori N555]*
<<locked>>
81%
29240
46%
**26
93%
[Vihtavuori N560]*
<<locked>>
94%
42859
67%
**00
90%
Winchester 6.5 StaBALL
<<locked>>
81%
38000
60%
**90
98%
Winchester 760
<<locked>>
81%
42989
67%
**58
95%
[Winchester StaBALL HD]*
<<locked>>
83%
25266
40%
**18
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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