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Load data for 6.5-300 Weatherby Magnum + .264 | 120gr | Lapua TRX N583

Recommended Powder(s): Bofors RP15, Bofors RP30, Hodgdon H1000, Hodgdon Retumbo, ReloadSwiss RS 76

6.5-300 Weatherby Magnum + .264 | 120gr | Lapua TRX N583

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.264 | 120gr | Lapua TRX N583
Manufacturer SKU:
NPL6204
Bullet Weight:
120gr | 7.8g
Bullet Diameter:
0.264" | 6.71mm
Bullet Length:
<<locked>>
Caliber:
6.5-300 Weatherby Magnum load data
Case Length (l3):
2.825" | 71.8mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
99.5 Grains of Water | 6.46 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
64977 psi | 4480 bar
LID:
LID_B12377_C1352
Last updated:
2026-06-01

Load data for 106 loads in caliber 6.5-300 Weatherby Magnum with .264 | 120gr | Lapua TRX N583 bullet and 53 powders such as Bofors RP15, Bofors RP30, Hodgdon H1000, Hodgdon Retumbo, ReloadSwiss RS 76. 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>>
85%
57856
89%
**09
100%
ADI AR 2213
<<locked>>
88%
58131
89%
**48
100%
ADI AR 2217
<<locked>>
96%
57841
89%
**38
100%
ADI AR 2218
<<locked>>
97%
51590
79%
**15
96%
ADI AR 2225
<<locked>>
97%
53998
83%
**05
100%
Accurate 3100
<<locked>>
88%
58305
90%
**30
100%
Accurate MAGPRO
<<locked>>
86%
58117
89%
**58
99%
Alliant Reloder-19
<<locked>>
85%
57856
89%
**05
100%
Alliant Reloder-22
<<locked>>
88%
57682
89%
**22
100%
Alliant Reloder-23
<<locked>>
89%
57783
89%
**63
100%
Alliant Reloder-25
<<locked>>
93%
58175
90%
**38
100%
Alliant Reloder-26
<<locked>>
84%
58392
90%
**51
100%
Alliant Reloder-33
<<locked>>
97%
57043
88%
**61
97%
[Alliant Reloder-50]*
<<locked>>
97%
48834
75%
**97
94%
Baschieri & Pellagri 109
<<locked>>
90%
58233
90%
**89
98%
Bofors RP15 👍
<<locked>>
90%
58059
89%
**35
100%
Bofors RP30 👍
<<locked>>
95%
58088
89%
**55
100%
Bofors RP5
<<locked>>
88%
57682
89%
**22
100%
Hodgdon H1000 👍
<<locked>>
94%
58479
90%
**38
100%
Hodgdon H4831
<<locked>>
86%
58015
89%
**92
99%
Hodgdon H4831 SC
<<locked>>
87%
58378
90%
**92
99%
Hodgdon Hybrid 100V
<<locked>>
83%
58349
90%
**17
100%
Hodgdon Retumbo 👍
<<locked>>
93%
58146
89%
**33
100%
Hodgdon TrailBoss
<<locked>>
96%
36042
55%
**31
100%
IMR 4955 Enduron
<<locked>>
86%
57711
89%
**63
99%
IMR 7828 SSC
<<locked>>
89%
58030
89%
**48
100%
[IMR 7977 Enduron]*
<<locked>>
93%
57986
89%
**14
94%
IMR 8133 Enduron
<<locked>>
97%
49501
76%
**04
99%
[Lovex D100]*
<<locked>>
97%
58407
90%
**53
93%
Lovex S071
<<locked>>
93%
58030
89%
**30
100%
Norma 217
<<locked>>
97%
50531
78%
**40
100%
Norma MRP
<<locked>>
86%
58233
90%
**45
100%
Ramshot Grand
<<locked>>
88%
58479
90%
**61
100%
Ramshot Magnum
<<locked>>
90%
57522
89%
**92
100%
ReloadSwiss RS 14
<<locked>>
96%
36912
57%
**77
100%
ReloadSwiss RS 76 👍
<<locked>>
92%
58247
90%
**04
100%
ReloadSwiss RS 80
<<locked>>
95%
58175
90%
**68
99%
Rottweil R 904
<<locked>>
85%
58247
90%
**79
100%
Rottweil R 905
<<locked>>
85%
57943
89%
**99
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
42917
66%
**07
92%
SNPE Vectan Tubal 8000
<<locked>>
86%
58189
90%
**05
100%
[Shooters World 50 BMG]*
<<locked>>
97%
58407
90%
**53
93%
Somchem S361
<<locked>>
84%
57914
89%
**23
99%
Somchem S385
<<locked>>
85%
57957
89%
**63
100%
Vihtavuori N165
<<locked>>
89%
58146
89%
**43
100%
Vihtavuori N170
<<locked>>
94%
58421
90%
**79
96%
Vihtavuori N555
<<locked>>
86%
58392
90%
**76
100%
Vihtavuori N560
<<locked>>
86%
58334
90%
**68
99%
Vihtavuori N565
<<locked>>
91%
58204
90%
**35
99%
Vihtavuori N568
<<locked>>
94%
58001
89%
**71
99%
Vihtavuori N570
<<locked>>
96%
57638
89%
**01
97%
Winchester StaBALL HD
<<locked>>
89%
58088
89%
**58
100%
Winchester Supreme 780
<<locked>>
87%
58146
89%
**63
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
50386
78%
**64
99%
ADI AR 2213
<<locked>>
81%
45469
70%
**02
97%
[ADI AR 2217]*
<<locked>>
81%
33924
52%
**07
93%
[ADI AR 2218]*
<<locked>>
90%
39885
61%
**20
90%
ADI AR 2225
<<locked>>
81%
31082
48%
**64
95%
Accurate 3100
<<locked>>
81%
46035
71%
**30
100%
Accurate MAGPRO
<<locked>>
81%
48138
74%
**61
97%
Alliant Reloder-19
<<locked>>
81%
50082
77%
**54
99%
Alliant Reloder-22
<<locked>>
81%
46267
71%
**12
99%
Alliant Reloder-23
<<locked>>
81%
44846
69%
**43
100%
Alliant Reloder-25
<<locked>>
81%
38899
60%
**64
99%
Alliant Reloder-26
<<locked>>
81%
51198
79%
**33
100%
[Alliant Reloder-33]*
<<locked>>
86%
38159
59%
**61
90%
[Alliant Reloder-50]*
<<locked>>
91%
39581
61%
**74
90%
[Baschieri & Pellagri 109]*
<<locked>>
81%
43700
67%
**00
94%
Bofors RP15
<<locked>>
81%
43134
66%
**36
98%
Bofors RP30
<<locked>>
81%
36289
56%
**92
95%
Bofors RP5
<<locked>>
81%
46267
71%
**12
99%
Hodgdon H1000
<<locked>>
81%
36956
57%
**02
96%
Hodgdon H4831
<<locked>>
81%
48124
74%
**02
97%
Hodgdon H4831 SC
<<locked>>
81%
47239
73%
**82
97%
Hodgdon Hybrid 100V
<<locked>>
81%
54201
83%
**51
100%
Hodgdon Retumbo
<<locked>>
81%
38029
59%
**13
97%
Hodgdon TrailBoss
<<locked>>
81%
28877
44%
**64
100%
IMR 4955 Enduron
<<locked>>
81%
48907
75%
**02
98%
IMR 7828 SSC
<<locked>>
81%
44106
68%
**79
97%
[IMR 7977 Enduron]*
<<locked>>
86%
45426
70%
**77
90%
[IMR 8133 Enduron]*
<<locked>>
82%
29718
46%
**05
90%
[Lovex D100]*
<<locked>>
92%
49806
77%
**95
90%
Lovex S071
<<locked>>
81%
39769
61%
**95
99%
[Norma 217]*
<<locked>>
81%
28732
44%
**95
93%
Norma MRP
<<locked>>
81%
49458
76%
**97
100%
Ramshot Grand
<<locked>>
81%
44701
69%
**95
97%
Ramshot Magnum
<<locked>>
81%
40190
62%
**64
98%
ReloadSwiss RS 14
<<locked>>
81%
29689
46%
**09
100%
ReloadSwiss RS 76
<<locked>>
81%
37536
58%
**84
98%
[ReloadSwiss RS 80]*
<<locked>>
81%
34461
53%
**53
91%
Rottweil R 904
<<locked>>
81%
50879
78%
**41
99%
Rottweil R 905
<<locked>>
81%
49908
77%
**54
99%
[SNPE Vectan SP 13]*
<<locked>>
94%
39305
60%
**18
90%
SNPE Vectan Tubal 8000
<<locked>>
81%
49545
76%
**45
99%
[Shooters World 50 BMG]*
<<locked>>
92%
49806
77%
**95
90%
Somchem S361
<<locked>>
81%
52243
80%
**31
98%
Somchem S385
<<locked>>
81%
50270
77%
**28
100%
Vihtavuori N165
<<locked>>
81%
43918
68%
**87
99%
[Vihtavuori N170]*
<<locked>>
83%
40640
63%
**18
90%
Vihtavuori N555
<<locked>>
81%
49850
77%
**38
100%
Vihtavuori N560
<<locked>>
81%
49066
76%
**91
98%
Vihtavuori N565
<<locked>>
81%
40553
62%
**77
96%
[Vihtavuori N568]*
<<locked>>
81%
35607
55%
**85
91%
[Vihtavuori N570]*
<<locked>>
85%
39059
60%
**90
90%
Winchester StaBALL HD
<<locked>>
81%
43830
67%
**05
100%
Winchester Supreme 780
<<locked>>
81%
46470
72%
**43
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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