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

Recommended Powder(s): ADI AR 2217, Hodgdon H1000, Norma 217, ReloadSwiss RS 80, Vihtavuori N568

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

Load Specifications

(Use the Personalized Load Calculator below to adjust )

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 Norma Mag load data
Case Length (l3):
2.490" | 63.2mm
Cartridge Length (C.O.L.):
3.625" | 92.1mm
Seated Depth:
0.285" | 7.2mm
Shank Seated Depth:
0.285" | 7.2mm
Case Capacity:
104.0 Grains of Water | 6.75 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B644_C365
Last updated:
2025-01-01

Load data for 80 loads in caliber .300 Norma Mag with .308 | 250gr | Barnes RNSP bullet and 40 powders such as ADI AR 2217, Hodgdon H1000, Norma 217, ReloadSwiss RS 80, Vihtavuori N568. 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 2213
<<locked>>
85%
56884
89%
**28
100%
ADI AR 2217 👍
<<locked>>
94%
56797
89%
**25
100%
ADI AR 2218
<<locked>>
97%
55100
86%
**26
99%
ADI AR 2225
<<locked>>
96%
57058
89%
**57
100%
Accurate 3100
<<locked>>
85%
57363
90%
**33
100%
Accurate 8700
<<locked>>
97%
44005
69%
**51
96%
Accurate MAGPRO
<<locked>>
85%
56913
89%
**41
100%
Alliant Reloder-19
<<locked>>
83%
57319
90%
**89
100%
Alliant Reloder-22
<<locked>>
85%
57406
90%
**18
100%
Alliant Reloder-23
<<locked>>
86%
56942
89%
**43
100%
Alliant Reloder-25
<<locked>>
90%
56811
89%
**12
100%
Alliant Reloder-33
<<locked>>
95%
57087
89%
**10
99%
Alliant Reloder-50
<<locked>>
97%
53258
83%
**51
99%
Hodgdon H1000 👍
<<locked>>
94%
56797
89%
**25
100%
Hodgdon H4831
<<locked>>
88%
57232
90%
**82
100%
Hodgdon H4831 SC
<<locked>>
85%
57232
90%
**82
100%
Hodgdon Retumbo
<<locked>>
96%
57058
89%
**57
100%
[Hodgdon US 869]*
<<locked>>
97%
48602
76%
**10
93%
IMR 4955 Enduron
<<locked>>
86%
57203
90%
**56
100%
IMR 7828 SSC
<<locked>>
84%
57305
90%
**41
100%
IMR 7977 Enduron
<<locked>>
91%
56753
89%
**43
97%
IMR 8133 Enduron
<<locked>>
97%
53853
84%
**21
100%
Lovex D100
<<locked>>
95%
57348
90%
**95
96%
Lovex S071
<<locked>>
90%
57363
90%
**33
100%
Norma 217 👍
<<locked>>
97%
54940
86%
**31
100%
Ramshot LRT
<<locked>>
97%
54882
86%
**64
95%
Ramshot Magnum
<<locked>>
86%
57406
90%
**05
100%
ReloadSwiss RS 76
<<locked>>
90%
56869
89%
**84
100%
ReloadSwiss RS 80 👍
<<locked>>
92%
57290
90%
**87
100%
SNPE Vectan SP 13
<<locked>>
97%
45992
72%
**57
97%
[Vihtavuori 20N29]*
<<locked>>
97%
43932
69%
**48
94%
Vihtavuori 24N41
<<locked>>
97%
55303
87%
**18
95%
Vihtavuori N165
<<locked>>
88%
57276
90%
**39
100%
Vihtavuori N170
<<locked>>
96%
57145
90%
**98
98%
Vihtavuori N555
<<locked>>
83%
57305
90%
**46
100%
Vihtavuori N560
<<locked>>
85%
56811
89%
**44
100%
Vihtavuori N565
<<locked>>
89%
56652
89%
**18
100%
Vihtavuori N568 👍
<<locked>>
92%
57392
90%
**84
100%
Vihtavuori N570
<<locked>>
93%
57101
89%
**17
99%
Winchester StaBALL HD
<<locked>>
86%
57188
90%
**28
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2213
<<locked>>
81%
49081
77%
**13
100%
ADI AR 2217
<<locked>>
81%
36811
58%
**90
98%
[ADI AR 2218]*
<<locked>>
81%
31256
49%
**18
90%
ADI AR 2225
<<locked>>
81%
33924
53%
**70
100%
Accurate 3100
<<locked>>
81%
49705
78%
**25
100%
[Accurate 8700]*
<<locked>>
87%
30661
48%
**56
90%
Accurate MAGPRO
<<locked>>
81%
49284
77%
**30
99%
Alliant Reloder-19
<<locked>>
81%
53722
84%
**39
100%
Alliant Reloder-22
<<locked>>
81%
49835
78%
**07
100%
Alliant Reloder-23
<<locked>>
81%
48602
76%
**31
100%
Alliant Reloder-25
<<locked>>
81%
42743
67%
**05
100%
[Alliant Reloder-33]*
<<locked>>
81%
34447
54%
**90
93%
[Alliant Reloder-50]*
<<locked>>
82%
30458
48%
**82
90%
Hodgdon H1000
<<locked>>
81%
36811
58%
**90
98%
Hodgdon H4831
<<locked>>
81%
45759
72%
**08
99%
Hodgdon H4831 SC
<<locked>>
81%
50589
79%
**87
100%
Hodgdon Retumbo
<<locked>>
81%
33924
53%
**70
100%
[Hodgdon US 869]*
<<locked>>
92%
40799
64%
**69
90%
IMR 4955 Enduron
<<locked>>
81%
49139
77%
**44
100%
IMR 7828 SSC
<<locked>>
81%
51010
80%
**52
100%
[IMR 7977 Enduron]*
<<locked>>
81%
41814
66%
**90
93%
IMR 8133 Enduron
<<locked>>
81%
31531
49%
**01
96%
[Lovex D100]*
<<locked>>
84%
39015
61%
**80
90%
Lovex S071
<<locked>>
81%
42873
67%
**20
100%
Norma 217
<<locked>>
81%
31879
50%
**18
98%
[Ramshot LRT]*
<<locked>>
88%
40828
64%
**98
90%
Ramshot Magnum
<<locked>>
81%
48182
75%
**77
100%
ReloadSwiss RS 76
<<locked>>
81%
41234
65%
**48
100%
ReloadSwiss RS 80
<<locked>>
81%
37855
59%
**56
97%
[SNPE Vectan SP 13]*
<<locked>>
85%
30632
48%
**42
90%
[Vihtavuori 20N29]*
<<locked>>
91%
35012
55%
**60
90%
[Vihtavuori 24N41]*
<<locked>>
88%
40785
64%
**69
90%
Vihtavuori N165
<<locked>>
81%
45992
72%
**82
100%
[Vihtavuori N170]*
<<locked>>
81%
35215
55%
**01
92%
Vihtavuori N555
<<locked>>
81%
53751
84%
**00
100%
Vihtavuori N560
<<locked>>
81%
50357
79%
**43
100%
Vihtavuori N565
<<locked>>
81%
44077
69%
**18
99%
Vihtavuori N568
<<locked>>
81%
39117
61%
**65
97%
[Vihtavuori N570]*
<<locked>>
81%
37246
58%
**59
94%
Winchester StaBALL HD
<<locked>>
81%
48486
76%
**07
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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