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Load data for .300 Weath. Mag. + .308 | 170gr | Impala RNFP KO

Recommended Powder(s): Alliant Reloder-26, Ramshot Hunter, Somchem S385, Vihtavuori N555, Winchester StaBALL HD

.300 Weath. Mag. + .308 | 170gr | Impala RNFP KO

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 170gr | Impala RNFP KO
Bullet Weight:
170gr | 11.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.278" | 32.5mm
Caliber:
.300 Weath. Mag. load data
Case Length (l3):
2.824" | 71.7mm
Cartridge Length (C.O.L.):
3.507" | 89.1mm
Seated Depth:
0.595" | 15.1mm
Shank Seated Depth:
0.595" | 15.1mm
Case Capacity:
98.9 Grains of Water | 6.42 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B2988_C379
Last updated:
2025-02-02

Load data for 142 loads in caliber .300 Weath. Mag. with .308 | 170gr | Impala RNFP KO bullet and 71 powders such as Alliant Reloder-26, Ramshot Hunter, Somchem S385, Vihtavuori N555, Winchester StaBALL HD. 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
<<locked>>
84%
57421
90%
**40
100%
ADI AR 2209
<<locked>>
94%
56797
89%
**25
99%
ADI AR 2213
<<locked>>
97%
56159
88%
**51
97%
[ADI AR 2217]*
<<locked>>
97%
41495
65%
**43
93%
ADI AR 2225
<<locked>>
97%
36999
58%
**00
95%
Accurate 2700
<<locked>>
84%
56956
89%
**97
99%
Accurate 3100
<<locked>>
97%
56826
89%
**69
100%
Accurate 4350
<<locked>>
88%
56913
89%
**95
100%
Accurate MAGPRO
<<locked>>
97%
54998
86%
**41
95%
Alliant Reloder-16
<<locked>>
90%
57421
90%
**45
100%
Alliant Reloder-17
<<locked>>
85%
56826
89%
**35
100%
Alliant Reloder-19
<<locked>>
94%
56942
89%
**25
99%
Alliant Reloder-22
<<locked>>
97%
55796
87%
**48
99%
Alliant Reloder-23
<<locked>>
97%
53287
83%
**82
100%
Alliant Reloder-25
<<locked>>
97%
46006
72%
**00
99%
Alliant Reloder-26 👍
<<locked>>
95%
57072
89%
**27
100%
[Hodgdon H1000]*
<<locked>>
97%
41495
65%
**43
93%
Hodgdon H414
<<locked>>
85%
56811
89%
**12
100%
Hodgdon H4350
<<locked>>
92%
57276
90%
**69
99%
Hodgdon H4831
<<locked>>
97%
51692
81%
**07
96%
Hodgdon H4831 SC
<<locked>>
96%
57290
90%
**02
97%
Hodgdon Hybrid 100V
<<locked>>
92%
57043
89%
**59
100%
Hodgdon LVR
<<locked>>
87%
57087
89%
**95
100%
Hodgdon Retumbo
<<locked>>
97%
36999
58%
**00
95%
Hodgdon Superperformance
<<locked>>
87%
56594
89%
**41
99%
Hodgdon VARGET
<<locked>>
84%
57087
89%
**40
100%
Hodgdon TrailBoss
<<locked>>
97%
35563
56%
**34
100%
IMR 4064
<<locked>>
84%
57421
90%
**27
100%
IMR 4166 Enduron
<<locked>>
85%
57116
89%
**30
99%
IMR 4350
<<locked>>
90%
56623
89%
**56
99%
IMR 4451 Enduron
<<locked>>
86%
57058
89%
**46
99%
IMR 4831
<<locked>>
93%
56550
89%
**76
100%
IMR 4955 Enduron
<<locked>>
97%
57058
89%
**63
97%
IMR 7828 SSC
<<locked>>
97%
57421
90%
**81
98%
Lovex S065
<<locked>>
88%
57261
90%
**43
100%
Lovex S070
<<locked>>
89%
57363
90%
**66
100%
Lovex S071
<<locked>>
97%
47674
75%
**22
99%
Norma 204
<<locked>>
89%
57000
89%
**02
98%
[Norma 217]*
<<locked>>
97%
33344
52%
**31
93%
Norma MRP
<<locked>>
96%
57087
89%
**94
100%
Norma URP
<<locked>>
89%
57000
89%
**99
100%
Ramshot Hunter 👍
<<locked>>
90%
56797
89%
**18
100%
Ramshot Magnum
<<locked>>
97%
54563
86%
**12
99%
ReloadSwiss RS 14
<<locked>>
97%
36260
57%
**73
100%
ReloadSwiss RS 60
<<locked>>
86%
57072
89%
**68
100%
ReloadSwiss RS 62
<<locked>>
88%
57000
89%
**22
100%
ReloadSwiss RS 70
<<locked>>
90%
57392
90%
**74
100%
ReloadSwiss RS 76
<<locked>>
97%
45034
71%
**33
98%
Rottweil R 903
<<locked>>
84%
56768
89%
**33
100%
Rottweil R 904
<<locked>>
93%
57232
90%
**72
98%
Rottweil R 905
<<locked>>
94%
56608
89%
**18
99%
Rottweil R 907
<<locked>>
87%
56927
89%
**43
99%
SNPE Vectan SP 11
<<locked>>
83%
56811
89%
**76
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
57290
90%
**15
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
57043
89%
**04
100%
Shooters World Long Rifle
<<locked>>
88%
57261
90%
**43
100%
Somchem S355
<<locked>>
84%
57058
89%
**36
100%
Somchem S361
<<locked>>
92%
57348
90%
**40
97%
Somchem S365
<<locked>>
91%
57392
90%
**09
100%
Somchem S385 👍
<<locked>>
94%
57101
89%
**89
99%
Vihtavuori N135
<<locked>>
85%
57072
89%
**48
100%
Vihtavuori N150
<<locked>>
89%
56811
89%
**97
100%
Vihtavuori N160
<<locked>>
87%
57334
90%
**66
100%
Vihtavuori N165
<<locked>>
97%
52228
82%
**94
98%
Vihtavuori N550
<<locked>>
87%
57348
90%
**02
100%
Vihtavuori N555 👍
<<locked>>
95%
56985
89%
**22
100%
Vihtavuori N560
<<locked>>
97%
55912
88%
**68
97%
Vihtavuori N565
<<locked>>
97%
48486
76%
**17
96%
Winchester 6.5 StaBALL
<<locked>>
89%
57087
89%
**30
100%
Winchester 760
<<locked>>
85%
56811
89%
**12
100%
Winchester StaBALL HD 👍
<<locked>>
97%
49240
77%
**54
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
52997
83%
**67
100%
[ADI AR 2209]*
<<locked>>
81%
37594
59%
**44
93%
[ADI AR 2213]*
<<locked>>
83%
35317
55%
**02
90%
[ADI AR 2217]*
<<locked>>
92%
35578
56%
**92
90%
[ADI AR 2225]*
<<locked>>
89%
29530
46%
**70
90%
Accurate 2700
<<locked>>
81%
51517
81%
**05
98%
Accurate 3100
<<locked>>
81%
33953
53%
**26
95%
Accurate 4350
<<locked>>
81%
44860
70%
**89
100%
[Accurate MAGPRO]*
<<locked>>
87%
39769
62%
**36
90%
Alliant Reloder-16
<<locked>>
81%
42612
67%
**89
100%
Alliant Reloder-17
<<locked>>
81%
49008
77%
**13
100%
[Alliant Reloder-19]*
<<locked>>
81%
37405
59%
**35
93%
[Alliant Reloder-22]*
<<locked>>
81%
33547
53%
**72
92%
Alliant Reloder-23
<<locked>>
81%
32140
50%
**52
98%
[Alliant Reloder-25]*
<<locked>>
81%
28587
45%
**48
93%
Alliant Reloder-26
<<locked>>
81%
34940
55%
**74
97%
[Hodgdon H1000]*
<<locked>>
92%
35578
56%
**92
90%
Hodgdon H414
<<locked>>
81%
50299
79%
**07
99%
Hodgdon H4350
<<locked>>
81%
41249
65%
**71
96%
[Hodgdon H4831]*
<<locked>>
85%
36289
57%
**85
90%
[Hodgdon H4831 SC]*
<<locked>>
82%
36158
57%
**85
90%
Hodgdon Hybrid 100V
<<locked>>
81%
40538
64%
**77
100%
Hodgdon LVR
<<locked>>
81%
46905
73%
**28
99%
[Hodgdon Retumbo]*
<<locked>>
89%
29530
46%
**70
90%
Hodgdon Superperformance
<<locked>>
81%
45266
71%
**48
98%
Hodgdon VARGET
<<locked>>
81%
52678
83%
**67
100%
Hodgdon TrailBoss
<<locked>>
81%
28282
44%
**77
100%
IMR 4064
<<locked>>
81%
52141
82%
**48
100%
IMR 4166 Enduron
<<locked>>
81%
50850
80%
**25
99%
IMR 4350
<<locked>>
81%
43352
68%
**10
97%
IMR 4451 Enduron
<<locked>>
81%
49037
77%
**15
98%
IMR 4831
<<locked>>
81%
38870
61%
**44
99%
[IMR 4955 Enduron]*
<<locked>>
81%
35694
56%
**36
90%
[IMR 7828 SSC]*
<<locked>>
82%
35781
56%
**28
91%
Lovex S065
<<locked>>
81%
46992
74%
**72
99%
Lovex S070
<<locked>>
81%
45368
71%
**59
98%
[Lovex S071]*
<<locked>>
81%
29501
46%
**05
93%
Norma 204
<<locked>>
81%
43134
68%
**43
95%
[Norma 217]*
<<locked>>
93%
29994
47%
**26
90%
[Norma MRP]*
<<locked>>
81%
35027
55%
**51
94%
Norma URP
<<locked>>
81%
44208
69%
**79
99%
Ramshot Hunter
<<locked>>
81%
42714
67%
**62
98%
[Ramshot Magnum]*
<<locked>>
81%
31053
49%
**90
91%
ReloadSwiss RS 14
<<locked>>
81%
28964
45%
**16
100%
ReloadSwiss RS 60
<<locked>>
81%
47427
74%
**07
100%
ReloadSwiss RS 62
<<locked>>
81%
44773
70%
**05
99%
ReloadSwiss RS 70
<<locked>>
81%
42656
67%
**12
99%
[ReloadSwiss RS 76]*
<<locked>>
85%
30197
47%
**13
90%
Rottweil R 903
<<locked>>
81%
52286
82%
**67
100%
[Rottweil R 904]*
<<locked>>
81%
38972
61%
**28
93%
[Rottweil R 905]*
<<locked>>
81%
36796
58%
**21
93%
Rottweil R 907
<<locked>>
81%
48283
76%
**89
98%
SNPE Vectan SP 11
<<locked>>
81%
52794
83%
**10
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
52011
81%
**43
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
45876
72%
**10
98%
Shooters World Long Rifle
<<locked>>
81%
46992
74%
**72
99%
Somchem S355
<<locked>>
81%
52011
82%
**61
100%
[Somchem S361]*
<<locked>>
81%
39769
62%
**15
92%
Somchem S365
<<locked>>
81%
40698
64%
**30
100%
Somchem S385
<<locked>>
81%
37681
59%
**21
95%
Vihtavuori N135
<<locked>>
81%
50473
79%
**49
100%
Vihtavuori N150
<<locked>>
81%
44585
70%
**94
100%
Vihtavuori N160
<<locked>>
81%
47253
74%
**99
100%
[Vihtavuori N165]*
<<locked>>
81%
31691
50%
**57
92%
Vihtavuori N550
<<locked>>
81%
48080
75%
**44
100%
Vihtavuori N555
<<locked>>
81%
36187
57%
**35
98%
[Vihtavuori N560]*
<<locked>>
83%
36056
57%
**54
90%
[Vihtavuori N565]*
<<locked>>
87%
35027
55%
**18
90%
Winchester 6.5 StaBALL
<<locked>>
81%
44469
70%
**36
100%
Winchester 760
<<locked>>
81%
50299
79%
**07
99%
Winchester StaBALL HD
<<locked>>
81%
26789
42%
**56
98%

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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