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Load data for 6.5-300 Weatherby Magnum + .264 | 120gr | Sierra SPT Pro-Hunter

Recommended Powder(s): ADI AR 2225, Hodgdon Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80, Vihtavuori N565

6.5-300 Weatherby Magnum + .264 | 120gr | Sierra SPT Pro-Hunter

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.264 | 120gr | Sierra SPT Pro-Hunter
Manufacturer SKU:
1720
Bullet Weight:
120gr | 7.8g
Bullet Diameter:
0.264" | 6.71mm
Bullet Length:
1.080" | 27.4mm
Caliber:
6.5-300 Weatherby Magnum load data
Case Length (l3):
2.825" | 71.8mm
Cartridge Length (C.O.L.):
3.546" | 90.1mm
Seated Depth:
0.359" | 9.1mm
Shank Seated Depth:
0.359" | 9.1mm
Case Capacity:
98.0 Grains of Water | 6.36 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
64977 psi | 4480 bar
LID:
LID_B5806_C1352
Last updated:
2025-01-01

Load data for 92 loads in caliber 6.5-300 Weatherby Magnum with .264 | 120gr | Sierra SPT Pro-Hunter bullet and 46 powders such as ADI AR 2225, Hodgdon Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80, Vihtavuori N565. 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 2209
<<locked>>
84%
57957
89%
**02
100%
ADI AR 2213
<<locked>>
87%
58073
89%
**32
99%
ADI AR 2217
<<locked>>
95%
58131
89%
**28
100%
ADI AR 2218
<<locked>>
97%
53548
82%
**45
97%
ADI AR 2225 👍
<<locked>>
97%
56057
86%
**35
100%
Accurate 3100
<<locked>>
87%
58465
90%
**27
100%
[Accurate 8700]*
<<locked>>
97%
42554
65%
**13
92%
Accurate MAGPRO
<<locked>>
87%
58030
89%
**45
99%
Alliant Reloder-19
<<locked>>
85%
58059
89%
**99
100%
Alliant Reloder-22
<<locked>>
87%
57769
89%
**22
100%
Alliant Reloder-23
<<locked>>
88%
58233
90%
**63
100%
Alliant Reloder-25
<<locked>>
92%
58204
90%
**28
100%
Alliant Reloder-26
<<locked>>
83%
58175
90%
**25
100%
Alliant Reloder-33
<<locked>>
96%
58189
90%
**81
98%
Alliant Reloder-50
<<locked>>
97%
51532
79%
**30
95%
Hodgdon H1000
<<locked>>
95%
58131
89%
**28
100%
Hodgdon H4831
<<locked>>
90%
58276
90%
**92
99%
Hodgdon H4831 SC
<<locked>>
86%
58276
90%
**92
99%
Hodgdon Retumbo 👍
<<locked>>
97%
56057
86%
**35
100%
Hodgdon TrailBoss
<<locked>>
96%
35940
55%
**37
100%
IMR 4831
<<locked>>
84%
58204
90%
**36
100%
IMR 4955 Enduron
<<locked>>
88%
58349
90%
**69
99%
IMR 7828 SSC
<<locked>>
86%
58001
89%
**45
100%
[IMR 7977 Enduron]*
<<locked>>
92%
57928
89%
**23
94%
IMR 8133 Enduron
<<locked>>
97%
51300
79%
**30
99%
[Lovex D100]*
<<locked>>
96%
57769
89%
**36
93%
Lovex S071
<<locked>>
92%
58465
90%
**27
100%
Norma 217
<<locked>>
97%
52156
80%
**59
100%
Norma MRP
<<locked>>
85%
58320
90%
**41
100%
Ramshot Magnum
<<locked>>
87%
57740
89%
**92
100%
ReloadSwiss RS 14
<<locked>>
97%
37260
57%
**93
100%
ReloadSwiss RS 76 👍
<<locked>>
91%
58262
90%
**94
100%
ReloadSwiss RS 80 👍
<<locked>>
94%
57986
89%
**68
99%
Rottweil R 904
<<locked>>
84%
58334
90%
**76
100%
Rottweil R 905
<<locked>>
85%
58044
89%
**89
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
44527
69%
**30
92%
Somchem S361
<<locked>>
83%
58146
89%
**23
99%
Somchem S385
<<locked>>
85%
58044
89%
**50
100%
Vihtavuori N165
<<locked>>
90%
58450
90%
**43
100%
Vihtavuori N170
<<locked>>
97%
56304
87%
**36
96%
Vihtavuori N555
<<locked>>
85%
58262
90%
**63
100%
Vihtavuori N560
<<locked>>
87%
58247
90%
**58
99%
Vihtavuori N565 👍
<<locked>>
90%
58001
89%
**19
99%
Vihtavuori N568
<<locked>>
93%
57740
89%
**61
99%
Vihtavuori N570
<<locked>>
94%
57899
89%
**94
97%
Winchester StaBALL HD
<<locked>>
87%
57783
89%
**32
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
51808
80%
**94
99%
ADI AR 2213
<<locked>>
81%
46934
72%
**22
98%
[ADI AR 2217]*
<<locked>>
81%
34853
54%
**33
94%
[ADI AR 2218]*
<<locked>>
89%
39175
60%
**94
90%
ADI AR 2225
<<locked>>
81%
32198
50%
**90
96%
Accurate 3100
<<locked>>
81%
47529
73%
**53
100%
[Accurate 8700]*
<<locked>>
94%
38856
60%
**18
90%
Accurate MAGPRO
<<locked>>
81%
47311
73%
**25
96%
Alliant Reloder-19
<<locked>>
81%
51547
79%
**84
99%
Alliant Reloder-22
<<locked>>
81%
47732
73%
**31
99%
Alliant Reloder-23
<<locked>>
81%
46253
71%
**66
100%
Alliant Reloder-25
<<locked>>
81%
40393
62%
**87
100%
Alliant Reloder-26
<<locked>>
81%
53200
82%
**56
100%
[Alliant Reloder-33]*
<<locked>>
85%
37420
58%
**28
90%
[Alliant Reloder-50]*
<<locked>>
90%
39015
60%
**58
90%
[Hodgdon H1000]*
<<locked>>
81%
34853
54%
**33
94%
Hodgdon H4831
<<locked>>
81%
43424
67%
**04
96%
Hodgdon H4831 SC
<<locked>>
81%
48617
75%
**15
98%
Hodgdon Retumbo
<<locked>>
81%
32198
50%
**90
96%
Hodgdon TrailBoss
<<locked>>
81%
28935
45%
**73
100%
IMR 4831
<<locked>>
81%
52982
82%
**51
100%
IMR 4955 Enduron
<<locked>>
81%
47326
73%
**53
97%
IMR 7828 SSC
<<locked>>
81%
48718
75%
**71
98%
[IMR 7977 Enduron]*
<<locked>>
85%
45208
70%
**71
90%
[IMR 8133 Enduron]*
<<locked>>
81%
29501
45%
**92
90%
[Lovex D100]*
<<locked>>
91%
49385
76%
**86
90%
Lovex S071
<<locked>>
81%
41002
63%
**12
99%
[Norma 217]*
<<locked>>
81%
29834
46%
**12
93%
Norma MRP
<<locked>>
81%
51024
79%
**07
100%
Ramshot Magnum
<<locked>>
81%
45832
71%
**69
99%
ReloadSwiss RS 14
<<locked>>
81%
29747
46%
**16
100%
ReloadSwiss RS 76
<<locked>>
81%
38928
60%
**00
98%
[ReloadSwiss RS 80]*
<<locked>>
81%
35694
55%
**79
92%
Rottweil R 904
<<locked>>
81%
52344
81%
**61
99%
Rottweil R 905
<<locked>>
81%
51358
79%
**74
99%
[SNPE Vectan SP 13]*
<<locked>>
93%
39349
61%
**08
90%
Somchem S361
<<locked>>
81%
53679
83%
**51
99%
Somchem S385
<<locked>>
81%
51692
80%
**45
100%
Vihtavuori N165
<<locked>>
81%
43845
67%
**81
99%
[Vihtavuori N170]*
<<locked>>
87%
40872
63%
**15
90%
Vihtavuori N555
<<locked>>
81%
51053
79%
**54
100%
Vihtavuori N560
<<locked>>
81%
47906
74%
**64
98%
Vihtavuori N565
<<locked>>
81%
41872
64%
**94
96%
[Vihtavuori N568]*
<<locked>>
81%
36825
57%
**02
92%
[Vihtavuori N570]*
<<locked>>
84%
39175
60%
**87
90%
Winchester StaBALL HD
<<locked>>
81%
45426
70%
**31
100%

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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