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Load data for .300 Weath. Mag. + .308 | 250gr | Barnes RNSP

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Recommended Powder(s): ADI AR 2213, ADI AR 2217, Accurate MAGPRO, Hodgdon H1000, Vihtavuori N565

.300 Weath. Mag. + .308 | 250gr | Barnes RNSP

Load Specifications

Bullet:
.308 | 250gr | Barnes RNSP
Manufacturer SKU:
30860
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.420" | 36.1mm
Caliber:
.300 Weath. Mag. load data
Case Length (l3):
2.824" | 71.7mm
Cartridge Length (C.O.L.):
3.507" | 89.1mm
Seated Depth:
0.737" | 18.7mm
Shank Seated Depth:
0.737" | 18.7mm
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_B644_C379
Last updated:
2025-01-01

>> Use the Personalized Load Calculator further below to adjust input parameters. 

Load data for 96 loads in caliber .300 Weath. Mag. with .308 | 250gr | Barnes RNSP bullet and 48 powders such as ADI AR 2213, ADI AR 2217, Accurate MAGPRO, Hodgdon H1000, 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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    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.

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>>
87%
57130
90%
**39
100%
ADI AR 2213 👍
<<locked>>
90%
57116
89%
**85
100%
ADI AR 2217 👍
<<locked>>
97%
53301
84%
**33
100%
ADI AR 2218
<<locked>>
97%
45701
72%
**07
96%
ADI AR 2225
<<locked>>
97%
47921
75%
**03
100%
Accurate 3100
<<locked>>
90%
56710
89%
**80
100%
[Accurate 8700]*
<<locked>>
97%
36158
57%
**44
92%
Accurate MAGPRO 👍
<<locked>>
90%
56739
89%
**95
99%
Alliant Reloder-19
<<locked>>
87%
57058
89%
**39
100%
Alliant Reloder-22
<<locked>>
90%
57421
90%
**79
100%
Alliant Reloder-23
<<locked>>
91%
56913
89%
**07
100%
Alliant Reloder-25
<<locked>>
95%
56956
89%
**79
100%
Alliant Reloder-26
<<locked>>
86%
56710
89%
**85
100%
Alliant Reloder-33
<<locked>>
97%
50227
79%
**69
98%
Alliant Reloder-50
<<locked>>
97%
42148
66%
**28
95%
Hodgdon H1000 👍
<<locked>>
97%
53301
84%
**33
100%
Hodgdon H4350
<<locked>>
85%
57159
90%
**84
100%
Hodgdon H4831
<<locked>>
92%
56985
89%
**30
100%
Hodgdon H4831 SC
<<locked>>
89%
56985
89%
**30
100%
Hodgdon Hybrid 100V
<<locked>>
85%
57145
90%
**44
100%
Hodgdon Retumbo
<<locked>>
97%
47921
75%
**03
100%
IMR 4350
<<locked>>
83%
56768
89%
**77
100%
IMR 4831
<<locked>>
86%
57145
90%
**74
100%
IMR 4955 Enduron
<<locked>>
90%
56942
89%
**03
100%
IMR 7828 SSC
<<locked>>
89%
57087
89%
**89
100%
IMR 7977 Enduron
<<locked>>
95%
57174
90%
**77
96%
IMR 8133 Enduron
<<locked>>
97%
44034
69%
**34
99%
[Lovex D100]*
<<locked>>
97%
52460
82%
**64
93%
Lovex S071
<<locked>>
95%
56710
89%
**80
100%
Norma 217
<<locked>>
97%
44817
70%
**57
100%
Norma MRP
<<locked>>
88%
56956
89%
**85
100%
Ramshot Magnum
<<locked>>
90%
57174
90%
**56
100%
ReloadSwiss RS 76
<<locked>>
95%
57392
90%
**71
100%
ReloadSwiss RS 80
<<locked>>
97%
55666
87%
**25
100%
Rottweil R 904
<<locked>>
87%
57334
90%
**07
100%
Rottweil R 905
<<locked>>
87%
57014
89%
**33
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
37753
59%
**67
92%
Somchem S361
<<locked>>
86%
56971
89%
**87
100%
Somchem S365
<<locked>>
84%
57217
90%
**80
100%
Somchem S385
<<locked>>
87%
57246
90%
**07
100%
Vihtavuori N165
<<locked>>
92%
56840
89%
**90
100%
Vihtavuori N170
<<locked>>
97%
49748
78%
**28
96%
Vihtavuori N555
<<locked>>
88%
57188
90%
**10
100%
Vihtavuori N560
<<locked>>
89%
56739
89%
**98
100%
Vihtavuori N565 👍
<<locked>>
94%
56985
89%
**82
100%
Vihtavuori N568
<<locked>>
97%
56333
88%
**28
100%
Vihtavuori N570
<<locked>>
97%
53708
84%
**25
98%
Winchester StaBALL HD
<<locked>>
91%
57348
90%
**05
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
47036
74%
**95
100%
ADI AR 2213
<<locked>>
81%
42192
66%
**52
98%
ADI AR 2217
<<locked>>
81%
31459
49%
**26
95%
[ADI AR 2218]*
<<locked>>
88%
33649
53%
**31
90%
ADI AR 2225
<<locked>>
81%
28674
45%
**03
97%
Accurate 3100
<<locked>>
81%
42641
67%
**80
100%
[Accurate 8700]*
<<locked>>
94%
33069
52%
**78
90%
Accurate MAGPRO
<<locked>>
81%
41742
65%
**56
97%
Alliant Reloder-19
<<locked>>
81%
46760
73%
**88
100%
Alliant Reloder-22
<<locked>>
81%
42786
67%
**52
99%
Alliant Reloder-23
<<locked>>
81%
41640
65%
**97
100%
Alliant Reloder-25
<<locked>>
81%
35694
56%
**51
100%
Alliant Reloder-26
<<locked>>
81%
46383
73%
**48
100%
[Alliant Reloder-33]*
<<locked>>
83%
31024
49%
**72
90%
[Alliant Reloder-50]*
<<locked>>
89%
31720
50%
**01
90%
Hodgdon H1000
<<locked>>
81%
31459
49%
**26
95%
Hodgdon H4350
<<locked>>
81%
50560
79%
**92
100%
Hodgdon H4831
<<locked>>
81%
39682
62%
**57
97%
Hodgdon H4831 SC
<<locked>>
81%
44106
69%
**36
98%
Hodgdon Hybrid 100V
<<locked>>
81%
50865
80%
**65
100%
Hodgdon Retumbo
<<locked>>
81%
28674
45%
**03
97%
IMR 4350
<<locked>>
81%
52678
83%
**21
100%
IMR 4831
<<locked>>
81%
48515
76%
**59
100%
IMR 4955 Enduron
<<locked>>
81%
43366
68%
**87
98%
IMR 7828 SSC
<<locked>>
81%
43584
68%
**82
99%
[IMR 7977 Enduron]*
<<locked>>
83%
38711
61%
**75
90%
[IMR 8133 Enduron]*
<<locked>>
81%
26295
41%
**31
92%
[Lovex D100]*
<<locked>>
91%
42699
67%
**00
90%
Lovex S071
<<locked>>
81%
36898
58%
**78
100%
Norma 217
<<locked>>
81%
26150
41%
**44
95%
Norma MRP
<<locked>>
81%
45078
71%
**15
100%
Ramshot Magnum
<<locked>>
81%
40074
63%
**06
99%
ReloadSwiss RS 76
<<locked>>
81%
34011
53%
**67
99%
[ReloadSwiss RS 80]*
<<locked>>
81%
30763
48%
**65
93%
Rottweil R 904
<<locked>>
81%
48066
75%
**75
99%
Rottweil R 905
<<locked>>
81%
46412
73%
**75
100%
[SNPE Vectan SP 13]*
<<locked>>
92%
32822
51%
**62
90%
Somchem S361
<<locked>>
81%
48646
76%
**62
99%
Somchem S365
<<locked>>
81%
52286
82%
**21
100%
Somchem S385
<<locked>>
81%
46978
74%
**59
100%
Vihtavuori N165
<<locked>>
81%
39798
62%
**34
99%
[Vihtavuori N170]*
<<locked>>
85%
34185
54%
**33
90%
Vihtavuori N555
<<locked>>
81%
46064
72%
**59
100%
Vihtavuori N560
<<locked>>
81%
42786
67%
**72
98%
Vihtavuori N565
<<locked>>
81%
37376
59%
**57
97%
[Vihtavuori N568]*
<<locked>>
81%
32445
51%
**88
93%
[Vihtavuori N570]*
<<locked>>
82%
31778
50%
**95
90%
Winchester StaBALL HD
<<locked>>
81%
39160
61%
**49
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.

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