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Load data for .300 Norma Mag + .308 | 125gr | Sierra Tipped MatchKing

Recommended Powder(s):

.300 Norma Mag + .308 | 125gr | Sierra Tipped MatchKing

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 125gr | Sierra Tipped MatchKing
Manufacturer SKU:
7725
Bullet Weight:
125gr | 8.1g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.101" | 28.0mm
Caliber:
.300 Norma Mag load data
Case Length (l3):
2.490" | 63.2mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B5865_C365
Last updated:
2026-01-20

Load data for 168 loads in caliber .300 Norma Mag with .308 | 125gr | Sierra Tipped MatchKing bullet and 84 powder(s). 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 2208
86%
89%
100%
ADI AR 2209
97%
88%
97%
ADI AR 2213
97%
79%
93%
Accurate 2700
87%
90%
98%
Accurate 3100
97%
78%
98%
Accurate 4064
85%
90%
100%
Accurate 4350
92%
90%
100%
Alliant Reloder- TS 15.5
86%
89%
100%
Alliant Reloder-15
84%
89%
100%
Alliant Reloder-16
94%
90%
100%
Alliant Reloder-17
89%
90%
100%
Alliant Reloder-19
97%
87%
97%
Alliant Reloder-22
97%
77%
95%
Alliant Reloder-23
97%
73%
100%
Alliant Reloder-25
97%
64%
96%
Alliant Reloder-26
97%
85%
100%
Bofors RP15
97%
71%
93%
Bofors RP3
85%
89%
100%
Bofors RP5
97%
77%
95%
Bofors RP7
90%
90%
98%
Hodgdon CFE223
84%
90%
100%
Hodgdon H380
85%
89%
100%
Hodgdon H414
88%
90%
98%
Hodgdon H4350
95%
90%
98%
Hodgdon H4831 SC
97%
83%
94%
Hodgdon Hybrid 100V
95%
89%
100%
Hodgdon LVR
91%
90%
99%
Hodgdon Superperformance
90%
89%
98%
Hodgdon VARGET
87%
89%
100%
Hodgdon TrailBoss
97%
54%
100%
IMR 3031
83%
90%
100%
IMR 4064
87%
89%
100%
IMR 4166 Enduron
88%
89%
98%
IMR 4350
93%
89%
98%
IMR 4451 Enduron
89%
89%
98%
IMR 4831
97%
88%
100%
IMR 4895
83%
90%
100%
IMR 4955 Enduron
97%
82%
94%
IMR 7828 SSC
97%
81%
94%
Lovex S062
85%
89%
100%
Lovex S065
91%
90%
99%
Lovex S070
92%
89%
98%
Lovex S071
97%
65%
95%
Norma 203B
85%
90%
100%
Norma 204
93%
90%
97%
Norma MRP
97%
83%
97%
Norma URP
93%
89%
100%
Ramshot Big Game
84%
89%
100%
Ramshot Grand
97%
87%
95%
Ramshot Hunter
93%
90%
99%
Ramshot Magnum
97%
75%
95%
ReloadSwiss RS 14
96%
55%
100%
ReloadSwiss RS 50
85%
90%
99%
ReloadSwiss RS 60
87%
90%
100%
ReloadSwiss RS 62
92%
89%
100%
ReloadSwiss RS 70
93%
90%
100%
ReloadSwiss RS 76
97%
63%
93%
Rottweil R 902
84%
89%
100%
Rottweil R 903
87%
89%
100%
Rottweil R 904
96%
89%
95%
Rottweil R 905
97%
86%
96%
Rottweil R 907
90%
90%
98%
SNPE Vectan SP 11
86%
89%
100%
SNPE Vectan Tubal 5000
87%
90%
100%
SNPE Vectan Tubal 7000
91%
90%
98%
Shooters World Long Rifle
91%
90%
99%
Shooters World Precision
85%
89%
100%
Somchem S355
88%
90%
100%
Somchem S361
95%
89%
95%
Somchem S365
95%
89%
100%
Somchem S385
97%
87%
97%
Vihtavuori N133
84%
90%
100%
Vihtavuori N135
89%
90%
100%
Vihtavuori N140
84%
90%
100%
Vihtavuori N150
93%
90%
100%
Vihtavuori N160
90%
89%
100%
Vihtavuori N165
97%
72%
95%
Vihtavuori N540
84%
90%
100%
Vihtavuori N550
90%
90%
100%
Vihtavuori N555
97%
82%
100%
Vihtavuori N560
97%
78%
93%
Winchester 6.5 StaBALL
91%
90%
100%
Winchester 760
88%
90%
98%
Winchester StaBALL HD
97%
65%
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
47979
75%
***
99%
[ADI AR 2209]*
<<locked>>
85%
38087
60%
***
90%
[ADI AR 2213]*
<<locked>>
92%
43279
68%
***
90%
Accurate 2700
<<locked>>
81%
46427
73%
***
95%
[Accurate 3100]*
<<locked>>
83%
30443
48%
***
90%
Accurate 4064
<<locked>>
81%
50604
79%
***
100%
Accurate 4350
<<locked>>
81%
38812
61%
***
96%
Alliant Reloder- TS 15.5
<<locked>>
81%
48298
76%
***
100%
Alliant Reloder-15
<<locked>>
81%
51619
81%
***
100%
Alliant Reloder-16
<<locked>>
81%
37536
59%
***
96%
Alliant Reloder-17
<<locked>>
81%
43047
67%
***
99%
[Alliant Reloder-19]*
<<locked>>
85%
37840
59%
***
90%
[Alliant Reloder-22]*
<<locked>>
89%
37840
59%
***
90%
[Alliant Reloder-23]*
<<locked>>
81%
27572
43%
***
93%
[Alliant Reloder-25]*
<<locked>>
89%
31111
49%
***
90%
[Alliant Reloder-26]*
<<locked>>
81%
29646
46%
***
90%
[Bofors RP15]*
<<locked>>
91%
37710
59%
***
90%
Bofors RP3
<<locked>>
81%
48747
76%
***
100%
[Bofors RP5]*
<<locked>>
89%
37840
59%
***
90%
[Bofors RP7]*
<<locked>>
81%
42902
67%
***
94%
Hodgdon CFE223
<<locked>>
81%
51503
81%
***
99%
Hodgdon H380
<<locked>>
81%
49429
77%
***
99%
Hodgdon H414
<<locked>>
81%
44440
70%
***
95%
[Hodgdon H4350]*
<<locked>>
81%
36347
57%
***
91%
[Hodgdon H4831 SC]*
<<locked>>
91%
43932
69%
***
90%
Hodgdon Hybrid 100V
<<locked>>
81%
35085
55%
***
97%
Hodgdon LVR
<<locked>>
81%
41582
65%
***
96%
[Hodgdon Superperformance]*
<<locked>>
81%
40147
63%
***
93%
Hodgdon VARGET
<<locked>>
81%
47485
74%
***
99%
Hodgdon TrailBoss
<<locked>>
81%
27557
43%
***
100%
IMR 3031
<<locked>>
81%
52852
83%
***
100%
IMR 4064
<<locked>>
81%
46833
73%
***
99%
IMR 4166 Enduron
<<locked>>
81%
46006
72%
***
96%
[IMR 4350]*
<<locked>>
81%
38334
60%
***
92%
IMR 4451 Enduron
<<locked>>
81%
44309
69%
***
95%
[IMR 4831]*
<<locked>>
81%
33591
53%
***
94%
IMR 4895
<<locked>>
81%
53026
83%
***
100%
[IMR 4955 Enduron]*
<<locked>>
91%
42641
67%
***
90%
[IMR 7828 SSC]*
<<locked>>
91%
42728
67%
***
90%
Lovex S062
<<locked>>
81%
50633
79%
***
100%
Lovex S065
<<locked>>
81%
41655
65%
***
96%
[Lovex S070]*
<<locked>>
81%
39943
63%
***
94%
[Lovex S071]*
<<locked>>
88%
30342
48%
***
90%
Norma 203B
<<locked>>
81%
51126
80%
***
100%
[Norma 204]*
<<locked>>
81%
37884
59%
***
90%
[Norma MRP]*
<<locked>>
85%
34693
54%
***
90%
Norma URP
<<locked>>
81%
38624
61%
***
96%
Ramshot Big Game
<<locked>>
81%
51851
81%
***
100%
[Ramshot Grand]*
<<locked>>
89%
41727
65%
***
90%
[Ramshot Hunter]*
<<locked>>
81%
37507
59%
***
94%
[Ramshot Magnum]*
<<locked>>
89%
36376
57%
***
90%
ReloadSwiss RS 14
<<locked>>
81%
28021
44%
***
100%
ReloadSwiss RS 50
<<locked>>
81%
49501
78%
***
97%
ReloadSwiss RS 60
<<locked>>
81%
45730
72%
***
100%
ReloadSwiss RS 62
<<locked>>
81%
38696
61%
***
96%
ReloadSwiss RS 70
<<locked>>
81%
37594
59%
***
95%
[ReloadSwiss RS 76]*
<<locked>>
95%
36521
57%
***
90%
Rottweil R 902
<<locked>>
81%
52330
82%
***
100%
Rottweil R 903
<<locked>>
81%
45919
72%
***
100%
[Rottweil R 904]*
<<locked>>
86%
40959
64%
***
90%
[Rottweil R 905]*
<<locked>>
85%
36767
58%
***
90%
[Rottweil R 907]*
<<locked>>
81%
42902
67%
***
94%
SNPE Vectan SP 11
<<locked>>
81%
47369
74%
***
99%
SNPE Vectan Tubal 5000
<<locked>>
81%
47021
74%
***
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
40930
64%
***
94%
Shooters World Long Rifle
<<locked>>
81%
41655
65%
***
96%
Shooters World Precision
<<locked>>
81%
50633
79%
***
100%
Somchem S355
<<locked>>
81%
46079
72%
***
99%
[Somchem S361]*
<<locked>>
87%
43207
68%
***
90%
Somchem S365
<<locked>>
81%
34722
54%
***
98%
[Somchem S385]*
<<locked>>
83%
34606
54%
***
90%
Vihtavuori N133
<<locked>>
81%
52373
82%
***
100%
Vihtavuori N135
<<locked>>
81%
44759
70%
***
100%
Vihtavuori N140
<<locked>>
81%
52431
82%
***
100%
Vihtavuori N150
<<locked>>
81%
39421
62%
***
99%
Vihtavuori N160
<<locked>>
81%
41611
65%
***
97%
[Vihtavuori N165]*
<<locked>>
89%
35520
56%
***
90%
Vihtavuori N540
<<locked>>
81%
51938
81%
***
100%
Vihtavuori N550
<<locked>>
81%
42380
66%
***
97%
[Vihtavuori N555]*
<<locked>>
81%
30385
48%
***
93%
[Vihtavuori N560]*
<<locked>>
93%
43555
68%
***
90%
Winchester 6.5 StaBALL
<<locked>>
81%
39537
62%
***
99%
Winchester 760
<<locked>>
81%
44440
70%
***
95%
[Winchester StaBALL HD]*
<<locked>>
82%
25570
40%
***
90%

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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