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Load data for .307 Win. + .308 | 150gr Hornady ECX

Recommended Powder(s):

.307 Win. + .308 | 150gr Hornady ECX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 150gr Hornady ECX
Manufacturer SKU:
30372
Bullet Weight:
150gr | 9.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
<<locked>>
Caliber:
.307 Win. load data
Case Length (l3):
2.014" | 51.2mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
54.0 Grains of Water | 3.51 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
60191 psi | 4150 bar
LID:
LID_B1382_C393
Last updated:
2026-03-22

Load data for 100 loads in caliber .307 Win. with .308 | 150gr Hornady ECX bullet and 50 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 2207
<<locked>>
96%
53954
90%
**72
100%
ADI AR 2219
<<locked>>
97%
50981
85%
**98
99%
[ADI Benchmark 8208]*
<<locked>>
96%
39146
65%
**79
92%
Accurate 1680
<<locked>>
86%
52794
88%
**36
100%
Accurate 2015
<<locked>>
96%
41060
68%
**18
99%
[Accurate 2230]*
<<locked>>
97%
45759
76%
**70
93%
Accurate 2460
<<locked>>
97%
44715
74%
**84
95%
Accurate 2495
<<locked>>
97%
32445
54%
**59
97%
[Accurate 2520]*
<<locked>>
96%
35244
59%
**72
93%
Alliant AR-Comp
<<locked>>
96%
36230
60%
**02
100%
Alliant Reloder-10x 👍
<<locked>>
96%
45310
75%
**97
100%
Alliant Reloder-7
<<locked>>
94%
53896
90%
**52
100%
Baschieri & Pellagri 106 👍
<<locked>>
97%
52547
87%
**13
99%
[Hodgdon Benchmark]*
<<locked>>
97%
43352
72%
**08
94%
Hodgdon H322
<<locked>>
97%
42163
70%
**61
98%
Hodgdon H335
<<locked>>
97%
50430
84%
**92
98%
Hodgdon H4198 👍
<<locked>>
96%
53969
90%
**23
99%
IMR 3031
<<locked>>
97%
31430
52%
**00
95%
IMR 4198 👍
<<locked>>
96%
48196
80%
**90
100%
IMR 4227
<<locked>>
89%
53359
89%
**87
100%
[IMR 8208 XBR]*
<<locked>>
96%
39146
65%
**79
92%
Lovex D073.4
<<locked>>
97%
47543
79%
**13
96%
Lovex D073.5
<<locked>>
97%
44135
73%
**74
95%
[Lovex D073.6]*
<<locked>>
97%
33011
55%
**23
92%
Lovex S053
<<locked>>
90%
53316
89%
**57
100%
Norma 200 👍
<<locked>>
97%
52750
88%
**85
100%
Norma 202
<<locked>>
97%
35563
59%
**49
95%
[Ramshot X-Terminator]*
<<locked>>
97%
44280
74%
**38
92%
ReloadSwiss RS 14
<<locked>>
96%
29225
49%
**03
100%
ReloadSwiss RS 36
<<locked>>
90%
53896
90%
**36
100%
ReloadSwiss RS 40
<<locked>>
96%
44730
74%
**80
96%
Rottweil R 901
<<locked>>
96%
38711
64%
**72
95%
SNPE Vectan BA6 1/2
<<locked>>
94%
54143
90%
**23
100%
SNPE Vectan SP 10
<<locked>>
96%
50734
84%
**92
98%
SNPE Vectan Tubal 3000
<<locked>>
96%
38899
65%
**16
95%
[SNPE Vectan Tubal 5000]*
<<locked>>
96%
31169
52%
**72
94%
[Shooters World Match Rifle]*
<<locked>>
97%
33011
55%
**23
92%
Shooters World Tactical Rifle
<<locked>>
96%
49588
82%
**03
95%
[Somchem S321]*
<<locked>>
97%
42815
71%
**77
94%
Somchem S335
<<locked>>
97%
37971
63%
**29
96%
Vihtavuori N110
<<locked>>
84%
52910
88%
**82
100%
Vihtavuori N120
<<locked>>
97%
51880
86%
**97
100%
Vihtavuori N130
<<locked>>
97%
43352
72%
**11
100%
Vihtavuori N133
<<locked>>
97%
35737
59%
**83
97%
[Vihtavuori N135]*
<<locked>>
96%
25628
43%
**16
93%
[Vihtavuori N140]*
<<locked>>
97%
33373
55%
**77
94%
[Vihtavuori N530]*
<<locked>>
96%
41249
69%
**28
93%
[Vihtavuori N540]*
<<locked>>
97%
33243
55%
**97
93%
[Winchester 748]*
<<locked>>
97%
42163
70%
**84
94%
[Winchester StaBALL Match]*
<<locked>>
96%
44933
75%
**07
93%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2207
<<locked>>
81%
34026
57%
**67
100%
[ADI AR 2219]*
<<locked>>
81%
29994
50%
**05
93%
[ADI Benchmark 8208]*
<<locked>>
92%
33910
56%
**67
90%
Accurate 1680
<<locked>>
81%
44367
74%
**11
99%
[Accurate 2015]*
<<locked>>
81%
25034
42%
**77
94%
[Accurate 2230]*
<<locked>>
90%
35795
59%
**03
90%
[Accurate 2460]*
<<locked>>
86%
30139
50%
**11
90%
[Accurate 2495]*
<<locked>>
83%
19740
33%
**14
90%
[Accurate 2520]*
<<locked>>
90%
28660
48%
**18
90%
[Alliant AR-Comp]*
<<locked>>
81%
22524
37%
**44
94%
Alliant Reloder-10x
<<locked>>
81%
27847
46%
**56
96%
Alliant Reloder-7
<<locked>>
81%
35781
59%
**67
99%
Baschieri & Pellagri 106
<<locked>>
81%
31183
52%
**56
95%
[Hodgdon Benchmark]*
<<locked>>
88%
32619
54%
**98
90%
[Hodgdon H322]*
<<locked>>
81%
25541
42%
**87
91%
[Hodgdon H335]*
<<locked>>
81%
29356
49%
**95
91%
Hodgdon H4198
<<locked>>
81%
34896
58%
**08
95%
[IMR 3031]*
<<locked>>
88%
24265
40%
**96
91%
IMR 4198
<<locked>>
81%
30734
51%
**72
98%
IMR 4227
<<locked>>
81%
41901
70%
**23
100%
[IMR 8208 XBR]*
<<locked>>
92%
33910
56%
**67
90%
[Lovex D073.4]*
<<locked>>
85%
30980
51%
**11
90%
[Lovex D073.5]*
<<locked>>
87%
30603
51%
**18
90%
[Lovex D073.6]*
<<locked>>
92%
28660
48%
**18
90%
Lovex S053
<<locked>>
81%
41017
68%
**90
100%
Norma 200
<<locked>>
81%
31705
53%
**34
98%
[Norma 202]*
<<locked>>
88%
26614
44%
**36
90%
[Ramshot X-Terminator]*
<<locked>>
93%
39711
66%
**52
90%
ReloadSwiss RS 14
<<locked>>
94%
28152
47%
**83
100%
ReloadSwiss RS 36
<<locked>>
81%
41553
69%
**62
100%
[ReloadSwiss RS 40]*
<<locked>>
84%
29631
49%
**82
90%
[Rottweil R 901]*
<<locked>>
84%
26614
44%
**00
90%
SNPE Vectan BA6 1/2
<<locked>>
81%
37985
63%
**16
100%
[SNPE Vectan SP 10]*
<<locked>>
81%
30255
50%
**15
92%
[SNPE Vectan Tubal 3000]*
<<locked>>
85%
27079
45%
**67
90%
[SNPE Vectan Tubal 5000]*
<<locked>>
89%
24772
41%
**11
90%
[Shooters World Match Rifle]*
<<locked>>
92%
28660
48%
**18
90%
[Shooters World Tactical Rifle]*
<<locked>>
87%
35491
59%
**64
90%
[Somchem S321]*
<<locked>>
89%
33141
55%
**87
90%
[Somchem S335]*
<<locked>>
83%
24511
41%
**24
90%
Vihtavuori N110
<<locked>>
81%
48167
80%
**23
100%
Vihtavuori N120
<<locked>>
81%
31937
53%
**92
100%
Vihtavuori N130
<<locked>>
81%
26890
45%
**80
96%
[Vihtavuori N133]*
<<locked>>
81%
22336
37%
**49
91%
[Vihtavuori N135]*
<<locked>>
91%
22220
37%
**11
90%
[Vihtavuori N140]*
<<locked>>
89%
26701
44%
**06
90%
[Vihtavuori N530]*
<<locked>>
90%
33431
56%
**74
90%
[Vihtavuori N540]*
<<locked>>
91%
27267
45%
**46
90%
[Winchester 748]*
<<locked>>
89%
32590
54%
**83
90%
[Winchester StaBALL Match]*
<<locked>>
91%
37739
63%
**75
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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