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

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

.300 Lapua 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 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.602" | 91.5mm
Seated Depth:
0.122" | 3.1mm
Shank Seated Depth:
0.122" | 3.1mm
Case Capacity:
100.0 Grains of Water | 6.49 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
60916 psi | 4200 bar
LID:
LID_B380_C363
Last updated:
2025-01-01

Load data for 88 loads in caliber .300 Lapua Mag. with .308 | 220gr | A-Square MONO RN bullet and 44 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>>
84%
54520
89%
**97
100%
ADI AR 2213
<<locked>>
87%
54636
90%
**36
100%
ADI AR 2217 👍
<<locked>>
96%
54752
90%
**40
100%
ADI AR 2218
<<locked>>
97%
48849
80%
**43
97%
ADI AR 2225 👍
<<locked>>
97%
51488
85%
**33
100%
Accurate 3100
<<locked>>
87%
54766
90%
**41
100%
[Accurate 8700]*
<<locked>>
97%
38580
63%
**51
92%
Accurate MAGPRO
<<locked>>
87%
54810
90%
**53
99%
Alliant Reloder-19
<<locked>>
84%
54752
90%
**94
100%
Alliant Reloder-22
<<locked>>
87%
54592
90%
**20
100%
Alliant Reloder-23
<<locked>>
88%
54795
90%
**71
100%
Alliant Reloder-25
<<locked>>
92%
54404
89%
**30
100%
Alliant Reloder-26
<<locked>>
84%
54259
89%
**40
100%
Alliant Reloder-33
<<locked>>
97%
53867
88%
**92
98%
Alliant Reloder-50
<<locked>>
97%
45992
76%
**48
95%
Hodgdon H1000 👍
<<locked>>
96%
54752
90%
**40
100%
Hodgdon H4831
<<locked>>
89%
54476
89%
**80
99%
Hodgdon H4831 SC
<<locked>>
86%
54650
90%
**90
99%
Hodgdon Retumbo 👍
<<locked>>
97%
51488
85%
**33
100%
IMR 4831
<<locked>>
83%
54143
89%
**21
100%
IMR 4955 Enduron
<<locked>>
87%
54418
89%
**54
99%
IMR 7828 SSC
<<locked>>
86%
54114
89%
**36
100%
IMR 7977 Enduron
<<locked>>
92%
54723
90%
**28
95%
IMR 8133 Enduron
<<locked>>
97%
47108
77%
**54
99%
[Lovex D100]*
<<locked>>
96%
54215
89%
**67
93%
Lovex S071
<<locked>>
92%
54766
90%
**41
100%
Norma 217
<<locked>>
97%
48008
79%
**80
100%
Norma MRP
<<locked>>
85%
54752
90%
**46
100%
Ramshot Magnum
<<locked>>
87%
54244
89%
**03
100%
ReloadSwiss RS 14
<<locked>>
97%
37217
61%
**09
100%
ReloadSwiss RS 76
<<locked>>
92%
54694
90%
**12
100%
ReloadSwiss RS 80
<<locked>>
94%
54317
89%
**85
99%
Rottweil R 904
<<locked>>
84%
54534
90%
**61
100%
Rottweil R 905
<<locked>>
84%
54491
89%
**84
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
40654
67%
**80
93%
Somchem S385
<<locked>>
84%
54795
90%
**61
100%
Vihtavuori N165
<<locked>>
89%
54679
90%
**44
100%
Vihtavuori N170
<<locked>>
97%
52127
86%
**41
96%
Vihtavuori N555
<<locked>>
85%
54447
89%
**61
100%
Vihtavuori N560
<<locked>>
86%
54085
89%
**46
99%
Vihtavuori N565 👍
<<locked>>
91%
54766
90%
**30
100%
Vihtavuori N568
<<locked>>
94%
54607
90%
**79
99%
Vihtavuori N570
<<locked>>
95%
54607
90%
**12
98%
Winchester StaBALL HD
<<locked>>
88%
54317
89%
**46
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
49153
81%
**12
100%
ADI AR 2213
<<locked>>
81%
44367
73%
**59
98%
ADI AR 2217
<<locked>>
81%
33185
54%
**20
95%
[ADI AR 2218]*
<<locked>>
88%
35549
58%
**28
90%
ADI AR 2225
<<locked>>
81%
30298
50%
**83
97%
Accurate 3100
<<locked>>
81%
45165
74%
**87
100%
[Accurate 8700]*
<<locked>>
94%
35230
58%
**75
90%
Accurate MAGPRO
<<locked>>
81%
44353
73%
**66
97%
Alliant Reloder-19
<<locked>>
81%
49211
81%
**05
100%
Alliant Reloder-22
<<locked>>
81%
45034
74%
**66
99%
Alliant Reloder-23
<<locked>>
81%
43772
72%
**03
100%
Alliant Reloder-25
<<locked>>
81%
37826
62%
**44
100%
Alliant Reloder-26
<<locked>>
81%
49516
81%
**64
100%
[Alliant Reloder-33]*
<<locked>>
84%
33591
55%
**82
90%
[Alliant Reloder-50]*
<<locked>>
89%
34345
56%
**95
90%
Hodgdon H1000
<<locked>>
81%
33185
54%
**20
95%
Hodgdon H4831
<<locked>>
81%
41437
68%
**51
97%
Hodgdon H4831 SC
<<locked>>
81%
46122
76%
**39
98%
Hodgdon Retumbo
<<locked>>
81%
30298
50%
**83
97%
IMR 4831
<<locked>>
81%
50662
83%
**75
100%
IMR 4955 Enduron
<<locked>>
81%
45310
74%
**03
98%
IMR 7828 SSC
<<locked>>
81%
45948
75%
**98
99%
[IMR 7977 Enduron]*
<<locked>>
83%
40596
67%
**79
90%
[IMR 8133 Enduron]*
<<locked>>
81%
27688
45%
**01
92%
[Lovex D100]*
<<locked>>
91%
44846
74%
**07
90%
Lovex S071
<<locked>>
81%
38885
64%
**72
100%
Norma 217
<<locked>>
81%
27992
46%
**34
95%
Norma MRP
<<locked>>
81%
47776
78%
**28
100%
Ramshot Magnum
<<locked>>
81%
42757
70%
**16
99%
ReloadSwiss RS 14
<<locked>>
90%
33823
56%
**47
100%
ReloadSwiss RS 76
<<locked>>
81%
36260
60%
**77
99%
[ReloadSwiss RS 80]*
<<locked>>
81%
33054
54%
**65
93%
Rottweil R 904
<<locked>>
81%
50024
82%
**85
99%
Rottweil R 905
<<locked>>
81%
48718
80%
**95
100%
[SNPE Vectan SP 13]*
<<locked>>
93%
35389
58%
**65
90%
Somchem S385
<<locked>>
81%
49081
81%
**72
100%
Vihtavuori N165
<<locked>>
81%
41771
69%
**38
99%
[Vihtavuori N170]*
<<locked>>
85%
36390
60%
**33
90%
Vihtavuori N555
<<locked>>
81%
48675
80%
**79
100%
Vihtavuori N560
<<locked>>
81%
45252
74%
**85
98%
Vihtavuori N565
<<locked>>
81%
39624
65%
**61
97%
[Vihtavuori N568]*
<<locked>>
81%
34447
57%
**85
93%
[Vihtavuori N570]*
<<locked>>
82%
34301
56%
**95
90%
Winchester StaBALL HD
<<locked>>
81%
42047
69%
**66
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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