top of page

Load data for .300 Weath. Mag. + .308 | 170gr | Geco PLUS

Recommended Powder(s): Alliant Reloder-26, Norma 204, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD

.300 Weath. Mag. + .308 | 170gr | Geco PLUS

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 170gr | Geco PLUS
Bullet Weight:
170gr | 11.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.114" | 28.3mm
Caliber:
.300 Weath. Mag. load data
Case Length (l3):
2.824" | 71.7mm
Cartridge Length (C.O.L.):
3.507" | 89.1mm
Seated Depth:
0.431" | 11.0mm
Shank Seated Depth:
0.431" | 11.0mm
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_B9018_C379
Last updated:
2025-01-01

Load data for 144 loads in caliber .300 Weath. Mag. with .308 | 170gr | Geco PLUS bullet and 72 powders such as Alliant Reloder-26, Norma 204, Ramshot Hunter, 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".

  • No data yet

  • .

    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.

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%
56826
89%
**49
100%
ADI AR 2209
<<locked>>
94%
56739
89%
**48
99%
ADI AR 2213
<<locked>>
97%
55811
87%
**64
98%
[ADI AR 2217]*
<<locked>>
97%
40930
64%
**49
93%
ADI AR 2225
<<locked>>
97%
36492
57%
**03
95%
Accurate 2700
<<locked>>
84%
56971
89%
**17
99%
Accurate 3100
<<locked>>
97%
55709
87%
**76
100%
Accurate 4350
<<locked>>
89%
57377
90%
**09
100%
Accurate MAGPRO
<<locked>>
97%
55550
87%
**68
96%
Alliant Reloder- TS 15.5
<<locked>>
83%
57377
90%
**59
100%
Alliant Reloder-16
<<locked>>
90%
56942
89%
**61
100%
Alliant Reloder-17
<<locked>>
86%
57276
90%
**58
100%
Alliant Reloder-19
<<locked>>
95%
57421
90%
**54
99%
Alliant Reloder-22
<<locked>>
97%
55405
87%
**54
99%
Alliant Reloder-23
<<locked>>
97%
53098
83%
**92
100%
Alliant Reloder-25
<<locked>>
97%
45861
72%
**13
100%
Alliant Reloder-26 👍
<<locked>>
95%
56652
89%
**27
100%
[Hodgdon H1000]*
<<locked>>
97%
40930
64%
**49
93%
Hodgdon H414
<<locked>>
85%
57058
89%
**35
100%
Hodgdon H4350
<<locked>>
92%
57217
90%
**82
99%
Hodgdon H4831
<<locked>>
97%
51996
81%
**33
96%
Hodgdon H4831 SC
<<locked>>
96%
57203
90%
**18
97%
Hodgdon Hybrid 100V
<<locked>>
92%
57217
90%
**72
100%
Hodgdon LVR
<<locked>>
87%
57043
89%
**09
100%
Hodgdon Retumbo
<<locked>>
97%
36492
57%
**03
95%
Hodgdon Superperformance
<<locked>>
87%
57174
90%
**68
100%
Hodgdon VARGET
<<locked>>
84%
57290
90%
**49
100%
Hodgdon TrailBoss
<<locked>>
96%
35070
55%
**41
100%
IMR 4064
<<locked>>
84%
56782
89%
**40
100%
IMR 4166 Enduron
<<locked>>
85%
57392
90%
**53
100%
IMR 4350
<<locked>>
90%
57246
90%
**82
99%
IMR 4451 Enduron
<<locked>>
86%
57377
90%
**76
100%
IMR 4831
<<locked>>
94%
57145
90%
**99
100%
IMR 4955 Enduron
<<locked>>
97%
57145
90%
**92
97%
IMR 7828 SSC
<<locked>>
96%
57014
89%
**87
98%
Lovex S065
<<locked>>
88%
57043
89%
**59
100%
Lovex S070
<<locked>>
89%
57101
89%
**82
100%
Lovex S071
<<locked>>
97%
46833
73%
**18
99%
Norma 204 👍
<<locked>>
90%
57101
89%
**22
99%
[Norma 217]*
<<locked>>
97%
32285
51%
**15
92%
Norma MRP
<<locked>>
95%
56594
89%
**07
100%
Norma URP
<<locked>>
90%
57392
90%
**22
100%
Ramshot Hunter 👍
<<locked>>
90%
56985
89%
**38
100%
Ramshot Magnum
<<locked>>
97%
54592
86%
**22
99%
ReloadSwiss RS 14
<<locked>>
96%
35723
56%
**80
100%
ReloadSwiss RS 60
<<locked>>
87%
57421
90%
**87
100%
ReloadSwiss RS 62
<<locked>>
89%
57217
90%
**31
100%
ReloadSwiss RS 70
<<locked>>
90%
57421
90%
**94
100%
ReloadSwiss RS 76
<<locked>>
97%
44585
70%
**33
98%
Rottweil R 903
<<locked>>
84%
57290
90%
**56
100%
Rottweil R 904
<<locked>>
93%
57014
89%
**95
98%
Rottweil R 905
<<locked>>
95%
57029
89%
**35
99%
Rottweil R 907
<<locked>>
87%
57072
89%
**63
99%
SNPE Vectan SP 11
<<locked>>
84%
57203
90%
**92
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
56811
89%
**25
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
57276
90%
**20
100%
Shooters World Long Rifle
<<locked>>
88%
57043
89%
**59
100%
Somchem S355
<<locked>>
84%
56884
89%
**56
100%
Somchem S361
<<locked>>
92%
57188
90%
**59
97%
Somchem S365
<<locked>>
91%
57130
90%
**22
100%
Somchem S385
<<locked>>
94%
57116
90%
**09
99%
Vihtavuori N135
<<locked>>
86%
57406
90%
**71
100%
Vihtavuori N150
<<locked>>
90%
57130
90%
**17
100%
Vihtavuori N160
<<locked>>
87%
57116
89%
**76
100%
Vihtavuori N165
<<locked>>
97%
51576
81%
**00
98%
Vihtavuori N550
<<locked>>
87%
57159
90%
**15
100%
Vihtavuori N555 👍
<<locked>>
96%
56927
89%
**38
100%
Vihtavuori N560
<<locked>>
97%
55970
88%
**94
97%
Vihtavuori N565
<<locked>>
97%
47761
75%
**20
96%
Winchester 6.5 StaBALL
<<locked>>
89%
57188
90%
**53
100%
Winchester 760
<<locked>>
85%
57058
89%
**35
100%
Winchester StaBALL HD 👍
<<locked>>
97%
49081
77%
**54
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
52359
82%
**77
100%
[ADI AR 2209]*
<<locked>>
81%
36825
58%
**38
93%
[ADI AR 2213]*
<<locked>>
83%
34940
55%
**02
90%
[ADI AR 2217]*
<<locked>>
92%
34853
55%
**95
90%
[ADI AR 2225]*
<<locked>>
90%
29182
46%
**77
90%
Accurate 2700
<<locked>>
81%
50604
79%
**12
98%
Accurate 3100
<<locked>>
81%
32503
51%
**10
95%
Accurate 4350
<<locked>>
81%
43932
69%
**85
99%
[Accurate MAGPRO]*
<<locked>>
87%
39291
62%
**36
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
53417
84%
**07
100%
Alliant Reloder-16
<<locked>>
81%
42264
66%
**95
100%
Alliant Reloder-17
<<locked>>
81%
48704
76%
**27
100%
[Alliant Reloder-19]*
<<locked>>
81%
36753
58%
**38
93%
[Alliant Reloder-22]*
<<locked>>
81%
32619
51%
**59
91%
Alliant Reloder-23
<<locked>>
81%
31256
49%
**43
98%
[Alliant Reloder-25]*
<<locked>>
81%
27398
43%
**21
92%
Alliant Reloder-26
<<locked>>
81%
33794
53%
**61
97%
[Hodgdon H1000]*
<<locked>>
92%
34853
55%
**95
90%
Hodgdon H414
<<locked>>
81%
49922
78%
**13
99%
Hodgdon H4350
<<locked>>
81%
40654
64%
**74
96%
[Hodgdon H4831]*
<<locked>>
85%
35578
56%
**85
90%
[Hodgdon H4831 SC]*
<<locked>>
82%
35331
55%
**82
90%
Hodgdon Hybrid 100V
<<locked>>
81%
39798
62%
**77
100%
Hodgdon LVR
<<locked>>
81%
46470
73%
**31
99%
[Hodgdon Retumbo]*
<<locked>>
90%
29182
46%
**77
90%
Hodgdon Superperformance
<<locked>>
81%
45150
71%
**54
98%
Hodgdon VARGET
<<locked>>
81%
52170
82%
**77
100%
Hodgdon TrailBoss
<<locked>>
81%
28036
44%
**86
100%
IMR 4064
<<locked>>
81%
51648
81%
**61
100%
IMR 4166 Enduron
<<locked>>
81%
50517
79%
**38
99%
IMR 4350
<<locked>>
81%
42641
67%
**20
97%
IMR 4451 Enduron
<<locked>>
81%
48704
76%
**25
99%
IMR 4831
<<locked>>
81%
38203
60%
**51
99%
[IMR 4955 Enduron]*
<<locked>>
81%
34824
55%
**33
90%
[IMR 7828 SSC]*
<<locked>>
82%
34708
54%
**15
90%
Lovex S065
<<locked>>
81%
46166
72%
**72
99%
Lovex S070
<<locked>>
81%
44498
70%
**62
98%
[Lovex S071]*
<<locked>>
81%
27905
44%
**72
92%
Norma 204
<<locked>>
81%
42598
67%
**56
95%
[Norma 217]*
<<locked>>
94%
29559
46%
**23
90%
[Norma MRP]*
<<locked>>
81%
33794
53%
**25
94%
Norma URP
<<locked>>
81%
43424
68%
**72
99%
Ramshot Hunter
<<locked>>
81%
42163
66%
**59
98%
[Ramshot Magnum]*
<<locked>>
81%
29892
47%
**77
90%
ReloadSwiss RS 14
<<locked>>
81%
28631
45%
**29
100%
ReloadSwiss RS 60
<<locked>>
81%
46905
73%
**13
100%
ReloadSwiss RS 62
<<locked>>
81%
43888
69%
**08
99%
ReloadSwiss RS 70
<<locked>>
81%
42279
66%
**25
99%
[ReloadSwiss RS 76]*
<<locked>>
85%
29559
46%
**20
90%
Rottweil R 903
<<locked>>
81%
51314
80%
**64
100%
[Rottweil R 904]*
<<locked>>
81%
38232
60%
**21
93%
[Rottweil R 905]*
<<locked>>
81%
35955
56%
**18
93%
Rottweil R 907
<<locked>>
81%
47340
74%
**02
98%
SNPE Vectan SP 11
<<locked>>
81%
52605
82%
**20
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
51474
81%
**56
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
45179
71%
**10
98%
Shooters World Long Rifle
<<locked>>
81%
46166
72%
**72
99%
Somchem S355
<<locked>>
81%
51169
80%
**61
100%
[Somchem S361]*
<<locked>>
81%
39015
61%
**18
92%
Somchem S365
<<locked>>
81%
40016
63%
**30
100%
Somchem S385
<<locked>>
81%
36651
57%
**12
95%
Vihtavuori N135
<<locked>>
81%
49647
78%
**53
100%
Vihtavuori N150
<<locked>>
81%
43758
69%
**97
100%
Vihtavuori N160
<<locked>>
81%
46514
73%
**02
100%
[Vihtavuori N165]*
<<locked>>
81%
30777
48%
**51
91%
Vihtavuori N550
<<locked>>
81%
47311
74%
**48
100%
Vihtavuori N555
<<locked>>
81%
34954
55%
**18
98%
[Vihtavuori N560]*
<<locked>>
84%
35636
56%
**61
90%
[Vihtavuori N565]*
<<locked>>
87%
34490
54%
**12
90%
Winchester 6.5 StaBALL
<<locked>>
81%
43976
69%
**36
100%
Winchester 760
<<locked>>
81%
49922
78%
**13
99%
Winchester StaBALL HD
<<locked>>
81%
25991
41%
**26
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.

bottom of page