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Load data for .300 Blaser Mag + .308 | 165gr | Hornady ECX

Recommended Powder(s):

.300 Blaser Mag + .308 | 165gr | Hornady ECX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 165gr | Hornady ECX
Manufacturer SKU:
304714
Bullet Weight:
165gr | 10.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.137" | 28.9mm
Caliber:
.300 Blaser Mag load data
Case Length (l3):
2.519" | 64.0mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
92.4 Grains of Water | 6.00 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
60916 psi | 4200 bar
LID:
LID_B1383_C351
Last updated:
2026-02-09

Load data for 170 loads in caliber .300 Blaser Mag with .308 | 165gr | Hornady ECX bullet and 85 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
87%
89%
100%
ADI AR 2209
97%
84%
96%
ADI AR 2213
97%
75%
93%
Accurate 2700
88%
89%
98%
Accurate 3100
97%
72%
97%
Accurate 4064
85%
89%
100%
Accurate 4350
94%
90%
100%
Alliant Power Pro 2000-MR
84%
89%
100%
Alliant Reloder- TS 15.5
87%
90%
100%
Alliant Reloder-15
85%
90%
100%
Alliant Reloder-16
95%
89%
100%
Alliant Reloder-17
90%
90%
100%
Alliant Reloder-19
97%
82%
96%
Alliant Reloder-22
97%
73%
95%
Alliant Reloder-23
97%
69%
100%
Alliant Reloder-25
97%
60%
96%
Alliant Reloder-26
97%
77%
99%
Bofors RP15
97%
67%
93%
Bofors RP3
87%
89%
100%
Bofors RP5
97%
73%
95%
Bofors RP7
91%
89%
98%
Hodgdon CFE223
85%
89%
100%
Hodgdon H380
86%
89%
100%
Hodgdon H414
89%
89%
98%
Hodgdon H4350
96%
89%
98%
Hodgdon H4831 SC
97%
79%
93%
Hodgdon Hybrid 100V
97%
89%
100%
Hodgdon LVR
92%
90%
100%
Hodgdon Superperformance
92%
89%
98%
Hodgdon VARGET
88%
90%
100%
Hodgdon TrailBoss
97%
57%
100%
IMR 3031
84%
90%
100%
IMR 4064
88%
89%
100%
IMR 4166 Enduron
89%
90%
98%
IMR 4350
95%
90%
98%
IMR 4451 Enduron
90%
90%
98%
IMR 4831
97%
84%
100%
IMR 4895
84%
89%
100%
IMR 4955 Enduron
97%
78%
93%
IMR 7828 SSC
97%
76%
93%
Lovex S062
85%
89%
100%
Lovex S065
92%
89%
99%
Lovex S070
93%
90%
99%
Lovex S071
97%
60%
95%
Norma 203B
85%
90%
100%
Norma 204
94%
89%
97%
Norma MRP
97%
76%
97%
Norma URP
94%
90%
100%
Ramshot Big Game
85%
90%
100%
Ramshot Grand
97%
81%
95%
Ramshot Hunter
95%
89%
99%
Ramshot Magnum
97%
71%
95%
ReloadSwiss RS 14
96%
57%
100%
ReloadSwiss RS 50
86%
90%
99%
ReloadSwiss RS 60
89%
90%
100%
ReloadSwiss RS 62
94%
90%
100%
ReloadSwiss RS 70
94%
90%
100%
Rottweil R 902
84%
89%
100%
Rottweil R 903
88%
89%
100%
Rottweil R 904
97%
87%
95%
Rottweil R 905
97%
81%
96%
Rottweil R 907
91%
89%
98%
SNPE Vectan SP 11
88%
90%
100%
SNPE Vectan SP 9
83%
90%
100%
SNPE Vectan Tubal 5000
87%
89%
100%
SNPE Vectan Tubal 7000
92%
89%
98%
Shooters World Long Rifle
92%
89%
99%
Shooters World Precision
85%
89%
100%
Somchem S355
89%
90%
100%
Somchem S361
97%
90%
95%
Somchem S365
97%
89%
100%
Somchem S385
97%
82%
97%
Vihtavuori N133
84%
90%
100%
Vihtavuori N135
90%
89%
100%
Vihtavuori N140
85%
90%
100%
Vihtavuori N150
93%
89%
100%
Vihtavuori N160
91%
89%
100%
Vihtavuori N165
97%
68%
94%
Vihtavuori N540
85%
90%
100%
Vihtavuori N550
91%
89%
100%
Vihtavuori N555
97%
77%
100%
Vihtavuori N560
97%
73%
92%
Winchester 6.5 StaBALL
93%
89%
100%
Winchester 760
89%
89%
98%
Winchester StaBALL HD
97%
57%
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
44802
74%
***
99%
[ADI AR 2209]*
<<locked>>
85%
34896
57%
***
90%
[ADI AR 2213]*
<<locked>>
92%
39378
65%
***
90%
Accurate 2700
<<locked>>
81%
43004
71%
***
95%
[Accurate 3100]*
<<locked>>
82%
26934
44%
***
90%
Accurate 4064
<<locked>>
81%
46992
77%
***
100%
Accurate 4350
<<locked>>
81%
35433
58%
***
97%
Alliant Power Pro 2000-MR
<<locked>>
81%
48921
80%
***
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
45020
74%
***
100%
Alliant Reloder-15
<<locked>>
81%
48211
79%
***
100%
Alliant Reloder-16
<<locked>>
81%
34911
57%
***
97%
Alliant Reloder-17
<<locked>>
81%
39320
65%
***
99%
[Alliant Reloder-19]*
<<locked>>
85%
34563
57%
***
90%
[Alliant Reloder-22]*
<<locked>>
89%
34113
56%
***
90%
[Alliant Reloder-23]*
<<locked>>
81%
25483
42%
***
93%
[Alliant Reloder-25]*
<<locked>>
88%
28413
47%
***
90%
[Alliant Reloder-26]*
<<locked>>
81%
26992
44%
***
91%
[Bofors RP15]*
<<locked>>
92%
34621
57%
***
90%
Bofors RP3
<<locked>>
81%
45150
74%
***
100%
[Bofors RP5]*
<<locked>>
89%
34113
56%
***
90%
[Bofors RP7]*
<<locked>>
81%
40016
66%
***
94%
Hodgdon CFE223
<<locked>>
81%
47181
77%
***
99%
Hodgdon H380
<<locked>>
81%
45687
75%
***
99%
Hodgdon H414
<<locked>>
81%
40843
67%
***
95%
[Hodgdon H4350]*
<<locked>>
81%
33939
56%
***
92%
[Hodgdon H4831 SC]*
<<locked>>
92%
40422
66%
***
90%
Hodgdon Hybrid 100V
<<locked>>
81%
32300
53%
***
97%
Hodgdon LVR
<<locked>>
81%
38247
63%
***
97%
[Hodgdon Superperformance]*
<<locked>>
81%
36854
60%
***
93%
Hodgdon VARGET
<<locked>>
81%
44483
73%
***
99%
Hodgdon TrailBoss
<<locked>>
81%
27543
45%
***
100%
IMR 3031
<<locked>>
81%
49298
81%
***
100%
IMR 4064
<<locked>>
81%
43845
72%
***
99%
IMR 4166 Enduron
<<locked>>
81%
43207
71%
***
96%
[IMR 4350]*
<<locked>>
81%
35621
58%
***
93%
IMR 4451 Enduron
<<locked>>
81%
41626
68%
***
95%
IMR 4831
<<locked>>
81%
30995
51%
***
95%
IMR 4895
<<locked>>
81%
49530
81%
***
100%
[IMR 4955 Enduron]*
<<locked>>
90%
39146
64%
***
90%
[IMR 7828 SSC]*
<<locked>>
92%
39682
65%
***
90%
Lovex S062
<<locked>>
81%
47282
78%
***
100%
Lovex S065
<<locked>>
81%
39015
64%
***
96%
[Lovex S070]*
<<locked>>
81%
37130
61%
***
94%
[Lovex S071]*
<<locked>>
87%
26934
44%
***
90%
Norma 203B
<<locked>>
81%
47442
78%
***
100%
[Norma 204]*
<<locked>>
81%
34925
57%
***
90%
[Norma MRP]*
<<locked>>
85%
31517
52%
***
90%
Norma URP
<<locked>>
81%
35447
58%
***
96%
Ramshot Big Game
<<locked>>
81%
47500
78%
***
100%
[Ramshot Grand]*
<<locked>>
90%
39044
64%
***
90%
[Ramshot Hunter]*
<<locked>>
81%
34301
56%
***
94%
[Ramshot Magnum]*
<<locked>>
90%
33475
55%
***
90%
ReloadSwiss RS 14
<<locked>>
81%
27891
46%
***
100%
ReloadSwiss RS 50
<<locked>>
81%
45847
75%
***
97%
ReloadSwiss RS 60
<<locked>>
81%
41800
69%
***
100%
ReloadSwiss RS 62
<<locked>>
81%
35143
58%
***
96%
ReloadSwiss RS 70
<<locked>>
81%
34447
57%
***
95%
Rottweil R 902
<<locked>>
81%
49197
81%
***
100%
Rottweil R 903
<<locked>>
81%
42511
70%
***
100%
[Rottweil R 904]*
<<locked>>
86%
37260
61%
***
90%
[Rottweil R 905]*
<<locked>>
85%
33663
55%
***
90%
[Rottweil R 907]*
<<locked>>
81%
40016
66%
***
94%
SNPE Vectan SP 11
<<locked>>
81%
43526
71%
***
99%
SNPE Vectan SP 9
<<locked>>
81%
51082
84%
***
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
44338
73%
***
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
38232
63%
***
95%
Shooters World Long Rifle
<<locked>>
81%
39015
64%
***
96%
Shooters World Precision
<<locked>>
81%
47282
78%
***
100%
Somchem S355
<<locked>>
81%
43047
71%
***
100%
[Somchem S361]*
<<locked>>
87%
39929
66%
***
90%
Somchem S365
<<locked>>
81%
31821
52%
***
99%
[Somchem S385]*
<<locked>>
82%
30951
51%
***
90%
Vihtavuori N133
<<locked>>
81%
49559
81%
***
100%
Vihtavuori N135
<<locked>>
81%
41814
69%
***
100%
Vihtavuori N140
<<locked>>
81%
48965
80%
***
100%
Vihtavuori N150
<<locked>>
81%
36825
60%
***
99%
Vihtavuori N160
<<locked>>
81%
38377
63%
***
97%
[Vihtavuori N165]*
<<locked>>
89%
32358
53%
***
90%
Vihtavuori N540
<<locked>>
81%
48530
80%
***
100%
Vihtavuori N550
<<locked>>
81%
38856
64%
***
97%
[Vihtavuori N555]*
<<locked>>
81%
27586
45%
***
94%
[Vihtavuori N560]*
<<locked>>
93%
39726
65%
***
90%
Winchester 6.5 StaBALL
<<locked>>
81%
36376
60%
***
99%
Winchester 760
<<locked>>
81%
40843
67%
***
95%
[Winchester StaBALL HD]*
<<locked>>
82%
23119
38%
***
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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