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

Recommended Powder(s): ADI AR 2213, Alliant Reloder-22, IMR 7828 SSC, ReloadSwiss RS 76, Vihtavuori N560

.300 Win. 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 Win. Mag. load data
Case Length (l3):
2.620" | 66.5mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.330" | 8.4mm
Shank Seated Depth:
0.330" | 8.4mm
Case Capacity:
90.5 Grains of Water | 5.88 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
62366 psi | 4300 bar
LID:
LID_B380_C380
Last updated:
2025-01-01

Load data for 112 loads in caliber .300 Win. Mag. with .308 | 220gr | A-Square MONO RN bullet and 56 powders such as ADI AR 2213, Alliant Reloder-22, IMR 7828 SSC, ReloadSwiss RS 76, Vihtavuori N560. 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>>
89%
56130
90%
**77
100%
ADI AR 2213 👍
<<locked>>
92%
55521
89%
**07
99%
ADI AR 2217
<<locked>>
97%
47703
76%
**79
99%
ADI AR 2225
<<locked>>
97%
42409
68%
**46
100%
Accurate 3100
<<locked>>
92%
55622
89%
**15
100%
Accurate 4350
<<locked>>
83%
55448
89%
**18
100%
Accurate MAGPRO
<<locked>>
93%
55622
89%
**23
98%
Alliant Reloder-16
<<locked>>
85%
55608
89%
**61
100%
Alliant Reloder-19
<<locked>>
89%
55550
89%
**64
100%
Alliant Reloder-22 👍
<<locked>>
92%
55637
89%
**03
100%
Alliant Reloder-23
<<locked>>
94%
55666
89%
**48
100%
Alliant Reloder-25
<<locked>>
97%
53461
86%
**90
100%
Alliant Reloder-26
<<locked>>
89%
55695
89%
**30
100%
[Alliant Reloder-33]*
<<locked>>
97%
43352
70%
**75
94%
Hodgdon H1000
<<locked>>
97%
47703
76%
**79
99%
Hodgdon H4350
<<locked>>
87%
55695
89%
**05
100%
Hodgdon H4831
<<locked>>
95%
55651
89%
**57
99%
Hodgdon H4831 SC
<<locked>>
91%
55651
89%
**57
99%
Hodgdon Hybrid 100V
<<locked>>
87%
55550
89%
**85
100%
Hodgdon Retumbo
<<locked>>
97%
42409
68%
**46
100%
IMR 4350
<<locked>>
85%
55680
89%
**12
100%
IMR 4831
<<locked>>
89%
55651
89%
**05
100%
IMR 4955 Enduron
<<locked>>
92%
55825
90%
**25
99%
IMR 7828 SSC 👍
<<locked>>
91%
55782
89%
**20
99%
[IMR 7977 Enduron]*
<<locked>>
97%
55709
89%
**85
93%
IMR 8133 Enduron
<<locked>>
97%
38522
62%
**61
96%
Lovex S065
<<locked>>
83%
56086
90%
**82
100%
Lovex S070
<<locked>>
84%
55376
89%
**02
100%
Lovex S071
<<locked>>
97%
54230
87%
**95
100%
Norma 204
<<locked>>
85%
55303
89%
**41
100%
Norma 217
<<locked>>
97%
38522
62%
**87
99%
Norma MRP
<<locked>>
91%
56130
90%
**33
100%
Norma URP
<<locked>>
85%
55738
89%
**25
100%
Ramshot Hunter
<<locked>>
85%
55767
89%
**57
100%
Ramshot Magnum
<<locked>>
93%
55753
89%
**94
100%
ReloadSwiss RS 62
<<locked>>
84%
55579
89%
**38
100%
ReloadSwiss RS 70
<<locked>>
85%
55927
90%
**00
100%
ReloadSwiss RS 76 👍
<<locked>>
97%
53011
85%
**62
100%
ReloadSwiss RS 80
<<locked>>
97%
47703
76%
**44
98%
Rottweil R 904
<<locked>>
89%
55680
89%
**28
99%
Rottweil R 905
<<locked>>
90%
56014
90%
**64
100%
SNPE Vectan Tubal 7000
<<locked>>
84%
55811
89%
**56
100%
Shooters World Long Rifle
<<locked>>
83%
56086
90%
**82
100%
Somchem S361
<<locked>>
88%
55869
90%
**08
99%
Somchem S365
<<locked>>
86%
55898
90%
**18
100%
Somchem S385
<<locked>>
90%
55883
90%
**31
100%
Vihtavuori N150
<<locked>>
85%
55941
90%
**30
100%
Vihtavuori N165
<<locked>>
95%
55434
89%
**18
100%
[Vihtavuori N170]*
<<locked>>
97%
44759
72%
**70
92%
Vihtavuori N555
<<locked>>
90%
55796
89%
**44
100%
Vihtavuori N560 👍
<<locked>>
92%
55956
90%
**33
99%
Vihtavuori N565
<<locked>>
96%
55579
89%
**13
99%
Vihtavuori N568
<<locked>>
97%
49501
79%
**64
97%
Vihtavuori N570
<<locked>>
97%
47050
75%
**48
95%
Winchester 6.5 StaBALL
<<locked>>
84%
55782
89%
**62
100%
Winchester StaBALL HD
<<locked>>
94%
55535
89%
**56
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
42511
68%
**54
98%
ADI AR 2213
<<locked>>
81%
37826
61%
**92
96%
[ADI AR 2217]*
<<locked>>
81%
28253
45%
**42
90%
[ADI AR 2225]*
<<locked>>
81%
25628
41%
**06
92%
Accurate 3100
<<locked>>
81%
38435
62%
**39
99%
Accurate 4350
<<locked>>
81%
51227
82%
**59
100%
[Accurate MAGPRO]*
<<locked>>
81%
37144
60%
**88
93%
Alliant Reloder-16
<<locked>>
81%
48849
78%
**59
100%
Alliant Reloder-19
<<locked>>
81%
42583
68%
**44
98%
Alliant Reloder-22
<<locked>>
81%
38058
61%
**95
97%
Alliant Reloder-23
<<locked>>
81%
36869
59%
**52
100%
Alliant Reloder-25
<<locked>>
81%
31995
51%
**90
98%
Alliant Reloder-26
<<locked>>
81%
40596
65%
**00
100%
[Alliant Reloder-33]*
<<locked>>
91%
35708
57%
**02
90%
[Hodgdon H1000]*
<<locked>>
81%
28253
45%
**42
90%
Hodgdon H4350
<<locked>>
81%
46093
74%
**64
99%
[Hodgdon H4831]*
<<locked>>
81%
35708
57%
**93
94%
Hodgdon H4831 SC
<<locked>>
81%
39668
64%
**82
96%
Hodgdon Hybrid 100V
<<locked>>
81%
46166
74%
**51
100%
[Hodgdon Retumbo]*
<<locked>>
81%
25628
41%
**06
92%
IMR 4350
<<locked>>
81%
48515
78%
**00
100%
IMR 4831
<<locked>>
81%
44063
71%
**38
100%
IMR 4955 Enduron
<<locked>>
81%
39827
64%
**49
96%
IMR 7828 SSC
<<locked>>
81%
38957
62%
**21
96%
[IMR 7977 Enduron]*
<<locked>>
90%
44947
72%
**08
90%
[IMR 8133 Enduron]*
<<locked>>
86%
27456
44%
**72
90%
Lovex S065
<<locked>>
81%
52083
84%
**26
100%
Lovex S070
<<locked>>
81%
50183
80%
**23
100%
Lovex S071
<<locked>>
81%
33141
53%
**28
98%
Norma 204
<<locked>>
81%
48631
78%
**36
99%
[Norma 217]*
<<locked>>
82%
23786
38%
**70
90%
Norma MRP
<<locked>>
81%
40277
65%
**70
99%
Norma URP
<<locked>>
81%
49617
80%
**39
100%
Ramshot Hunter
<<locked>>
81%
48486
78%
**43
100%
Ramshot Magnum
<<locked>>
81%
35259
57%
**36
97%
ReloadSwiss RS 62
<<locked>>
81%
50836
82%
**75
100%
ReloadSwiss RS 70
<<locked>>
81%
48965
79%
**98
100%
ReloadSwiss RS 76
<<locked>>
81%
30153
48%
**74
96%
[ReloadSwiss RS 80]*
<<locked>>
84%
30327
49%
**60
90%
Rottweil R 904
<<locked>>
81%
43758
70%
**28
97%
Rottweil R 905
<<locked>>
81%
42047
67%
**34
98%
SNPE Vectan Tubal 7000
<<locked>>
81%
50952
82%
**84
100%
Shooters World Long Rifle
<<locked>>
81%
52083
84%
**26
100%
Somchem S361
<<locked>>
81%
44280
71%
**21
97%
Somchem S365
<<locked>>
81%
47152
76%
**00
100%
Somchem S385
<<locked>>
81%
42438
68%
**15
99%
Vihtavuori N150
<<locked>>
81%
49864
80%
**48
100%
Vihtavuori N165
<<locked>>
81%
35737
57%
**80
97%
[Vihtavuori N170]*
<<locked>>
93%
39421
63%
**69
90%
Vihtavuori N555
<<locked>>
81%
41292
66%
**28
100%
Vihtavuori N560
<<locked>>
81%
38406
62%
**18
95%
[Vihtavuori N565]*
<<locked>>
81%
33025
53%
**83
93%
[Vihtavuori N568]*
<<locked>>
84%
31357
50%
**77
90%
[Vihtavuori N570]*
<<locked>>
90%
36695
59%
**28
90%
Winchester 6.5 StaBALL
<<locked>>
81%
50270
81%
**93
100%
Winchester StaBALL HD
<<locked>>
81%
33228
53%
**95
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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