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Load data for .300 Norma Mag + .308 | 220gr | A-Square MONO RN

Recommended Powder(s): ADI AR 2217, ADI AR 2225, Hodgdon H1000, Hodgdon Retumbo, Vihtavuori N565

.300 Norma Mag + .308 | 220gr | A-Square MONO RN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 220gr | A-Square MONO RN
Bullet Weight:
220gr | 14.3g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.000" | 25.4mm
Caliber:
.300 Norma Mag load data
Case Length (l3):
2.490" | 63.2mm
Cartridge Length (C.O.L.):
3.368" | 85.6mm
Seated Depth:
0.122" | 3.1mm
Shank Seated Depth:
0.122" | 3.1mm
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_B380_C365
Last updated:
2025-01-01

Load data for 96 loads in caliber .300 Norma Mag with .308 | 220gr | A-Square MONO RN bullet and 48 powders such as ADI AR 2217, ADI AR 2225, Hodgdon H1000, Hodgdon Retumbo, 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>>
85%
57203
90%
**62
100%
ADI AR 2213
<<locked>>
87%
57363
90%
**99
100%
ADI AR 2217 👍
<<locked>>
96%
57116
90%
**95
100%
ADI AR 2218
<<locked>>
97%
50676
79%
**99
98%
ADI AR 2225 👍
<<locked>>
97%
53374
84%
**82
100%
Accurate 3100
<<locked>>
87%
57348
90%
**90
100%
[Accurate 8700]*
<<locked>>
97%
40408
63%
**20
93%
Accurate MAGPRO
<<locked>>
87%
56826
89%
**02
99%
Alliant Reloder-19
<<locked>>
85%
57406
90%
**56
100%
Alliant Reloder-22
<<locked>>
87%
57174
90%
**79
100%
Alliant Reloder-23
<<locked>>
88%
56971
89%
**17
100%
Alliant Reloder-25
<<locked>>
92%
56884
89%
**85
100%
Alliant Reloder-26
<<locked>>
84%
57130
90%
**95
100%
Alliant Reloder-33
<<locked>>
97%
56434
88%
**51
98%
Alliant Reloder-50
<<locked>>
97%
48399
76%
**13
96%
Hodgdon H1000 👍
<<locked>>
96%
57116
90%
**95
100%
Hodgdon H4831
<<locked>>
90%
56840
89%
**40
100%
Hodgdon H4831 SC
<<locked>>
86%
57276
90%
**53
100%
Hodgdon Retumbo 👍
<<locked>>
97%
53374
84%
**82
100%
Hodgdon TrailBoss
<<locked>>
97%
36347
57%
**93
100%
IMR 4831
<<locked>>
84%
56724
89%
**84
100%
IMR 4955 Enduron
<<locked>>
88%
57319
90%
**26
100%
IMR 7828 SSC
<<locked>>
86%
57101
89%
**08
100%
IMR 7977 Enduron
<<locked>>
93%
57348
90%
**00
96%
IMR 8133 Enduron
<<locked>>
97%
49168
77%
**10
100%
[Lovex D100]*
<<locked>>
96%
56927
89%
**26
94%
Lovex S071
<<locked>>
92%
56985
89%
**90
100%
Norma 217
<<locked>>
97%
50314
79%
**36
100%
Norma MRP
<<locked>>
85%
57392
90%
**02
100%
[Ramshot LRT]*
<<locked>>
97%
50705
79%
**33
92%
Ramshot Magnum
<<locked>>
88%
57348
90%
**72
100%
ReloadSwiss RS 14
<<locked>>
96%
37101
58%
**29
100%
ReloadSwiss RS 76
<<locked>>
92%
57348
90%
**74
100%
ReloadSwiss RS 80
<<locked>>
94%
57043
89%
**48
100%
Rottweil R 904
<<locked>>
84%
57130
90%
**20
100%
Rottweil R 905
<<locked>>
85%
57232
90%
**53
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
42540
67%
**43
94%
Somchem S361
<<locked>>
84%
57421
90%
**03
100%
Somchem S385
<<locked>>
85%
57305
90%
**20
100%
[Vihtavuori 24N41]*
<<locked>>
97%
51634
81%
**13
92%
Vihtavuori N165
<<locked>>
90%
56927
89%
**07
100%
Vihtavuori N170
<<locked>>
97%
53940
85%
**94
97%
Vihtavuori N555
<<locked>>
85%
57276
90%
**20
100%
Vihtavuori N560
<<locked>>
87%
56942
89%
**08
100%
Vihtavuori N565 👍
<<locked>>
91%
57392
90%
**02
100%
Vihtavuori N568
<<locked>>
94%
57188
90%
**41
99%
Vihtavuori N570
<<locked>>
95%
56797
89%
**74
98%
Winchester StaBALL HD
<<locked>>
88%
56985
89%
**08
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
50662
79%
**54
100%
ADI AR 2213
<<locked>>
81%
45759
72%
**08
99%
ADI AR 2217
<<locked>>
81%
34330
54%
**69
96%
[ADI AR 2218]*
<<locked>>
86%
34635
54%
**25
90%
ADI AR 2225
<<locked>>
81%
31473
49%
**43
98%
Accurate 3100
<<locked>>
81%
46601
73%
**33
100%
[Accurate 8700]*
<<locked>>
92%
34330
54%
**75
90%
Accurate MAGPRO
<<locked>>
81%
45948
72%
**21
97%
Alliant Reloder-19
<<locked>>
81%
50633
79%
**54
100%
Alliant Reloder-22
<<locked>>
81%
46543
73%
**08
100%
Alliant Reloder-23
<<locked>>
81%
45310
71%
**43
100%
Alliant Reloder-25
<<locked>>
81%
39276
62%
**00
100%
Alliant Reloder-26
<<locked>>
81%
51692
81%
**13
100%
[Alliant Reloder-33]*
<<locked>>
82%
32387
51%
**69
90%
[Alliant Reloder-50]*
<<locked>>
87%
34171
54%
**11
90%
Hodgdon H1000
<<locked>>
81%
34330
54%
**69
96%
Hodgdon H4831
<<locked>>
81%
42772
67%
**00
98%
Hodgdon H4831 SC
<<locked>>
81%
47630
75%
**92
99%
Hodgdon Retumbo
<<locked>>
81%
31473
49%
**43
98%
Hodgdon TrailBoss
<<locked>>
92%
33939
53%
**47
100%
IMR 4831
<<locked>>
81%
52214
82%
**15
100%
IMR 4955 Enduron
<<locked>>
81%
46673
73%
**49
99%
IMR 7828 SSC
<<locked>>
81%
47747
75%
**51
99%
[IMR 7977 Enduron]*
<<locked>>
81%
39566
62%
**82
90%
[IMR 8133 Enduron]*
<<locked>>
81%
28892
45%
**57
93%
[Lovex D100]*
<<locked>>
89%
44063
69%
**13
90%
Lovex S071
<<locked>>
81%
40132
63%
**21
100%
Norma 217
<<locked>>
81%
29240
46%
**87
96%
Norma MRP
<<locked>>
81%
49835
78%
**87
100%
[Ramshot LRT]*
<<locked>>
94%
45542
71%
**35
90%
Ramshot Magnum
<<locked>>
81%
44556
70%
**66
100%
ReloadSwiss RS 14
<<locked>>
88%
32895
52%
**50
100%
ReloadSwiss RS 76
<<locked>>
81%
37913
59%
**23
100%
[ReloadSwiss RS 80]*
<<locked>>
81%
34621
54%
**25
94%
Rottweil R 904
<<locked>>
81%
51459
81%
**28
100%
Rottweil R 905
<<locked>>
81%
50241
79%
**48
100%
[SNPE Vectan SP 13]*
<<locked>>
90%
34142
53%
**56
90%
Somchem S361
<<locked>>
81%
52402
82%
**31
99%
Somchem S385
<<locked>>
81%
50662
79%
**15
100%
[Vihtavuori 24N41]*
<<locked>>
94%
45818
72%
**05
90%
Vihtavuori N165
<<locked>>
81%
43120
68%
**77
99%
[Vihtavuori N170]*
<<locked>>
83%
35491
56%
**39
90%
Vihtavuori N555
<<locked>>
81%
50372
79%
**21
100%
Vihtavuori N560
<<locked>>
81%
46992
74%
**38
99%
Vihtavuori N565
<<locked>>
81%
41205
65%
**13
98%
[Vihtavuori N568]*
<<locked>>
81%
35868
56%
**34
94%
[Vihtavuori N570]*
<<locked>>
81%
34374
54%
**25
91%
Winchester StaBALL HD
<<locked>>
81%
44150
69%
**15
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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