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Load data for .300 RCM + .308 | 178gr | Remington SP Extended-Range

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Recommended Powder(s):

.300 RCM + .308 | 178gr | Remington SP Extended-Range

Load Specifications

Bullet:
.308 | 178gr | Remington SP Extended-Range
Bullet Weight:
178gr | 11.5g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.000" | 25.4mm
Caliber:
.300 RCM
Case Length (l3):
2.090" | 53.1mm
Cartridge Length (C.O.L.):
2.797" | 71.1mm
Seated Depth:
0.293" | 7.4mm
Shank Seated Depth:
0.293" | 7.4mm
Case Capacity:
75.0 Grains of Water | 4.87 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B5173_C371

>> Use the Personalized Load Calculator further below to adjust input parameters. 

Load data for 190 loads in caliber .300 RCM with .308 | 178gr | Remington SP Extended-Range bullet and 95 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".

    • A load must fulfill certain criteria to be listed in the default view below - see here.

    • Our load data might deviate from other sources - see the most common reasons here

    • All loads are based on the bullet and case dimensions shown under "Load Specifications" - see here what to do if you deviate.

    • You can set your specifications in the "Personalized Load Calculator".

    • Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric) 

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    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 2206H
<<locked>>
85%
57232
90%
**08
100%
ADI AR 2208
<<locked>>
90%
56666
89%
**85
100%
ADI AR 2209
<<locked>>
97%
48936
77%
**43
96%
[ADI AR 2213]*
<<locked>>
97%
43497
68%
**57
92%
Accurate 2200
<<locked>>
83%
56985
89%
**76
100%
Accurate 2700
<<locked>>
91%
56942
89%
**46
98%
Accurate 3100
<<locked>>
97%
41626
65%
**95
97%
Accurate 4064
<<locked>>
88%
56826
89%
**69
100%
Accurate 4350
<<locked>>
96%
56956
89%
**64
100%
Alliant Reloder- TS 15.5
<<locked>>
90%
57043
89%
**08
100%
Alliant Reloder-15
<<locked>>
88%
57188
90%
**28
100%
Alliant Reloder-16 👍
<<locked>>
97%
55332
87%
**77
100%
Alliant Reloder-17
<<locked>>
93%
56753
89%
**13
100%
Alliant Reloder-19
<<locked>>
97%
48008
75%
**33
96%
[Alliant Reloder-22]*
<<locked>>
97%
42047
66%
**64
94%
Alliant Reloder-23
<<locked>>
97%
39668
62%
**21
99%
Alliant Reloder-25
<<locked>>
97%
35157
55%
**26
95%
Alliant Reloder-26
<<locked>>
97%
43976
69%
**76
99%
Baschieri & Pellagri 107
<<locked>>
85%
56956
89%
**22
100%
Hodgdon CFE223
<<locked>>
88%
56840
89%
**54
100%
Hodgdon H380
<<locked>>
89%
57188
90%
**25
100%
Hodgdon H414 👍
<<locked>>
92%
56768
89%
**74
99%
Hodgdon H4350
<<locked>>
97%
53113
83%
**56
98%
[Hodgdon H4831 SC]*
<<locked>>
97%
45571
71%
**51
92%
Hodgdon Hybrid 100V
<<locked>>
97%
51750
81%
**53
100%
Hodgdon LVR
<<locked>>
94%
56869
89%
**58
100%
Hodgdon Superperformance
<<locked>>
95%
56768
89%
**04
99%
Hodgdon VARGET
<<locked>>
90%
57116
89%
**89
100%
Hodgdon TrailBoss
<<locked>>
97%
34360
54%
**73
100%
IMR 3031
<<locked>>
87%
57305
90%
**79
100%
IMR 4064
<<locked>>
91%
57014
89%
**82
100%
IMR 4166 Enduron
<<locked>>
91%
56681
89%
**69
99%
IMR 4350
<<locked>>
97%
56347
88%
**08
98%
IMR 4451 Enduron
<<locked>>
93%
57116
89%
**02
99%
IMR 4831
<<locked>>
97%
48457
76%
**20
99%
IMR 4895
<<locked>>
87%
56869
89%
**31
100%
[IMR 4955 Enduron]*
<<locked>>
97%
45701
72%
**25
93%
[IMR 7828 SSC]*
<<locked>>
97%
44614
70%
**90
92%
IMR 8208 XBR
<<locked>>
83%
57043
89%
**66
100%
Lovex D073.6
<<locked>>
84%
56724
89%
**72
100%
Lovex S060
<<locked>>
85%
56724
89%
**36
100%
Lovex S062
<<locked>>
88%
57058
89%
**76
100%
Lovex S065
<<locked>>
95%
57116
89%
**99
100%
Lovex S070
<<locked>>
96%
57159
90%
**22
99%
Lovex S071
<<locked>>
97%
34708
54%
**54
95%
Norma 201
<<locked>>
85%
57116
89%
**69
100%
Norma 202
<<locked>>
85%
56884
89%
**59
100%
Norma 203B
<<locked>>
88%
57421
90%
**25
100%
Norma 204
<<locked>>
97%
56971
89%
**58
97%
Norma MRP
<<locked>>
97%
44077
69%
**36
96%
Norma URP
<<locked>>
97%
56391
88%
**54
100%
Ramshot Big Game
<<locked>>
88%
57159
90%
**44
100%
Ramshot Hunter
<<locked>>
97%
55419
87%
**54
99%
[Ramshot Magnum]*
<<locked>>
97%
40611
64%
**08
94%
Ramshot TAC
<<locked>>
83%
57232
90%
**92
100%
Ramshot Wild Boar
<<locked>>
83%
56927
89%
**08
100%
ReloadSwiss RS 14
<<locked>>
97%
35041
55%
**16
100%
ReloadSwiss RS 50
<<locked>>
89%
56971
89%
**99
99%
ReloadSwiss RS 52
<<locked>>
88%
56942
89%
**35
100%
ReloadSwiss RS 60
<<locked>>
94%
57377
90%
**40
100%
ReloadSwiss RS 62 👍
<<locked>>
97%
57130
90%
**87
100%
ReloadSwiss RS 70
<<locked>>
97%
56594
89%
**27
100%
Rottweil R 901
<<locked>>
83%
56971
89%
**30
100%
Rottweil R 902
<<locked>>
87%
56797
89%
**53
100%
Rottweil R 903
<<locked>>
91%
56855
89%
**08
100%
Rottweil R 904
<<locked>>
97%
50560
79%
**13
95%
Rottweil R 905
<<locked>>
97%
46470
73%
**10
96%
Rottweil R 907
<<locked>>
94%
57406
90%
**02
98%
SNPE Vectan SP 11
<<locked>>
91%
57377
90%
**44
100%
SNPE Vectan SP 7
<<locked>>
84%
56782
89%
**85
100%
SNPE Vectan SP 9
<<locked>>
86%
57159
90%
**02
100%
SNPE Vectan Tubal 3000
<<locked>>
85%
56739
89%
**80
100%
SNPE Vectan Tubal 5000
<<locked>>
90%
56637
89%
**74
100%
SNPE Vectan Tubal 7000
<<locked>>
94%
56681
89%
**43
99%
Shooters World Long Rifle
<<locked>>
95%
57116
89%
**99
100%
Shooters World Match Rifle
<<locked>>
84%
56724
89%
**72
100%
Shooters World Precision
<<locked>>
88%
57058
89%
**76
100%
Somchem S335
<<locked>>
85%
57029
89%
**87
100%
Somchem S341
<<locked>>
84%
57174
90%
**89
100%
Somchem S355
<<locked>>
91%
56869
89%
**02
100%
[Somchem S361]*
<<locked>>
97%
52228
82%
**10
94%
Somchem S365
<<locked>>
97%
51459
81%
**12
100%
Somchem S385
<<locked>>
97%
47398
74%
**97
97%
Vihtavuori N133
<<locked>>
87%
57101
89%
**67
100%
Vihtavuori N135
<<locked>>
93%
57319
90%
**20
100%
Vihtavuori N140
<<locked>>
87%
56753
89%
**26
100%
Vihtavuori N150
<<locked>>
97%
57334
90%
**66
100%
Vihtavuori N160
<<locked>>
94%
56927
89%
**18
100%
[Vihtavuori N165]*
<<locked>>
97%
39334
62%
**30
94%
Vihtavuori N540
<<locked>>
87%
56869
89%
**59
100%
Vihtavuori N550 👍
<<locked>>
94%
57348
90%
**67
100%
Vihtavuori N555
<<locked>>
97%
44019
69%
**00
99%
Winchester 6.5 StaBALL
<<locked>>
96%
57261
90%
**08
100%
Winchester 760 👍
<<locked>>
92%
56768
89%
**74
99%
Winchester StaBALL HD
<<locked>>
97%
35563
56%
**35
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
50749
80%
**10
100%
ADI AR 2208
<<locked>>
81%
42989
67%
**66
99%
[ADI AR 2209]*
<<locked>>
86%
34258
54%
**34
90%
[ADI AR 2213]*
<<locked>>
94%
39668
62%
**69
90%
Accurate 2200
<<locked>>
81%
52910
83%
**13
100%
Accurate 2700
<<locked>>
81%
41481
65%
**84
95%
[Accurate 3100]*
<<locked>>
84%
26847
42%
**44
90%
Accurate 4064
<<locked>>
81%
45092
71%
**98
100%
Accurate 4350
<<locked>>
81%
33489
52%
**34
96%
Alliant Reloder- TS 15.5
<<locked>>
81%
43294
68%
**89
100%
Alliant Reloder-15
<<locked>>
81%
46296
73%
**54
100%
Alliant Reloder-16
<<locked>>
81%
33692
53%
**54
96%
Alliant Reloder-17
<<locked>>
81%
37623
59%
**72
99%
[Alliant Reloder-19]*
<<locked>>
86%
33852
53%
**28
90%
[Alliant Reloder-22]*
<<locked>>
90%
33823
53%
**70
90%
[Alliant Reloder-23]*
<<locked>>
81%
24352
38%
**05
93%
[Alliant Reloder-25]*
<<locked>>
90%
28007
44%
**13
90%
[Alliant Reloder-26]*
<<locked>>
82%
26281
41%
**13
90%
Baschieri & Pellagri 107
<<locked>>
81%
50386
79%
**23
100%
Hodgdon CFE223
<<locked>>
81%
45063
71%
**67
99%
Hodgdon H380
<<locked>>
81%
44077
69%
**08
98%
Hodgdon H414
<<locked>>
81%
39015
61%
**59
95%
[Hodgdon H4350]*
<<locked>>
81%
32532
51%
**49
91%
[Hodgdon H4831 SC]*
<<locked>>
93%
40321
63%
**46
90%
Hodgdon Hybrid 100V
<<locked>>
81%
30777
48%
**46
97%
Hodgdon LVR
<<locked>>
81%
36535
57%
**90
96%
[Hodgdon Superperformance]*
<<locked>>
81%
35056
55%
**87
92%
Hodgdon VARGET
<<locked>>
81%
42757
67%
**52
99%
Hodgdon TrailBoss
<<locked>>
94%
33025
52%
**47
100%
IMR 3031
<<locked>>
81%
47108
74%
**38
100%
IMR 4064
<<locked>>
81%
42438
66%
**43
99%
IMR 4166 Enduron
<<locked>>
81%
41930
66%
**13
96%
[IMR 4350]*
<<locked>>
81%
34185
54%
**92
92%
IMR 4451 Enduron
<<locked>>
81%
39914
63%
**93
95%
[IMR 4831]*
<<locked>>
81%
29501
46%
**16
94%
IMR 4895
<<locked>>
81%
47398
74%
**77
100%
[IMR 4955 Enduron]*
<<locked>>
91%
38740
61%
**84
90%
[IMR 7828 SSC]*
<<locked>>
93%
39291
62%
**75
90%
IMR 8208 XBR
<<locked>>
81%
52881
83%
**13
100%
Lovex D073.6
<<locked>>
81%
50749
80%
**87
100%
Lovex S060
<<locked>>
81%
50154
79%
**44
100%
Lovex S062
<<locked>>
81%
45339
71%
**98
100%
Lovex S065
<<locked>>
81%
37434
59%
**51
96%
[Lovex S070]*
<<locked>>
81%
35621
56%
**28
94%
[Lovex S071]*
<<locked>>
89%
26847
42%
**44
90%
Norma 201
<<locked>>
81%
49705
78%
**64
100%
Norma 202
<<locked>>
81%
50241
79%
**64
100%
Norma 203B
<<locked>>
81%
45527
71%
**38
100%
[Norma 204]*
<<locked>>
82%
34418
54%
**21
90%
[Norma MRP]*
<<locked>>
86%
30951
49%
**21
90%
Norma URP
<<locked>>
81%
33837
53%
**44
96%
Ramshot Big Game
<<locked>>
81%
45585
71%
**57
100%
[Ramshot Hunter]*
<<locked>>
81%
32851
51%
**15
93%
[Ramshot Magnum]*
<<locked>>
92%
33388
52%
**38
90%
Ramshot TAC
<<locked>>
81%
53113
83%
**33
99%
Ramshot Wild Boar
<<locked>>
81%
52707
83%
**49
100%
ReloadSwiss RS 14
<<locked>>
90%
31705
50%
**50
100%
ReloadSwiss RS 50
<<locked>>
81%
44135
69%
**89
97%
ReloadSwiss RS 52
<<locked>>
81%
44904
70%
**57
100%
ReloadSwiss RS 60
<<locked>>
81%
36506
57%
**66
99%
ReloadSwiss RS 62
<<locked>>
81%
33228
52%
**54
96%
[ReloadSwiss RS 70]*
<<locked>>
81%
32953
52%
**54
94%
Rottweil R 901
<<locked>>
81%
53853
84%
**87
100%
Rottweil R 902
<<locked>>
81%
47224
74%
**12
100%
Rottweil R 903
<<locked>>
81%
40698
64%
**46
99%
[Rottweil R 904]*
<<locked>>
87%
37028
58%
**54
90%
[Rottweil R 905]*
<<locked>>
86%
33301
52%
**25
90%
[Rottweil R 907]*
<<locked>>
81%
38624
61%
**64
94%
SNPE Vectan SP 11
<<locked>>
81%
41698
65%
**95
99%
SNPE Vectan SP 7
<<locked>>
81%
51837
81%
**10
99%
SNPE Vectan SP 9
<<locked>>
81%
49066
77%
**77
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
51024
80%
**02
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
42627
67%
**74
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
36593
57%
**88
94%
Shooters World Long Rifle
<<locked>>
81%
37434
59%
**51
96%
Shooters World Match Rifle
<<locked>>
81%
50749
80%
**87
100%
Shooters World Precision
<<locked>>
81%
45339
71%
**98
100%
Somchem S335
<<locked>>
81%
50517
79%
**98
100%
Somchem S341
<<locked>>
81%
51387
81%
**07
100%
Somchem S355
<<locked>>
81%
41278
65%
**43
99%
[Somchem S361]*
<<locked>>
89%
39871
62%
**93
90%
Somchem S365
<<locked>>
81%
30095
47%
**88
98%
[Somchem S385]*
<<locked>>
83%
30560
48%
**29
90%
Vihtavuori N133
<<locked>>
81%
48095
75%
**43
100%
Vihtavuori N135
<<locked>>
81%
40190
63%
**70
100%
Vihtavuori N140
<<locked>>
81%
47123
74%
**89
100%
Vihtavuori N150
<<locked>>
81%
35143
55%
**98
99%
Vihtavuori N160
<<locked>>
81%
36521
57%
**67
97%
[Vihtavuori N165]*
<<locked>>
90%
32155
50%
**62
90%
Vihtavuori N540
<<locked>>
81%
46572
73%
**12
100%
Vihtavuori N550
<<locked>>
81%
37217
58%
**16
97%
[Vihtavuori N555]*
<<locked>>
81%
26078
41%
**80
93%
Winchester 6.5 StaBALL
<<locked>>
81%
34751
54%
**15
98%
Winchester 760
<<locked>>
81%
39015
61%
**59
95%
[Winchester StaBALL HD]*
<<locked>>
83%
22713
36%
**92
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.

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