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Load data for .300 Rem. Ultra Mag + .308 | 220gr | Hornady InterLock RN

Recommended Powder(s): ADI AR 2217, Hodgdon H1000, ReloadSwiss RS 80, Vihtavuori N568, Vihtavuori N570

.300 Rem. Ultra Mag + .308 | 220gr | Hornady InterLock RN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 220gr | Hornady InterLock RN
Manufacturer SKU:
3090
Bullet Weight:
220gr | 14.3g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.283" | 32.6mm
Caliber:
.300 Rem. Ultra Mag load data
Case Length (l3):
2.850" | 72.4mm
Cartridge Length (C.O.L.):
3.544" | 90.0mm
Seated Depth:
0.589" | 15.0mm
Shank Seated Depth:
0.589" | 15.0mm
Case Capacity:
112.5 Grains of Water | 7.30 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
64977 psi | 4480 bar
LID:
LID_B2712_C374
Last updated:
2025-01-01

Load data for 94 loads in caliber .300 Rem. Ultra Mag with .308 | 220gr | Hornady InterLock RN bullet and 47 powders such as ADI AR 2217, Hodgdon H1000, ReloadSwiss RS 80, Vihtavuori N568, Vihtavuori N570. 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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    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 2209
<<locked>>
84%
58305
90%
**74
100%
ADI AR 2213
<<locked>>
87%
58204
90%
**13
100%
ADI AR 2217 👍
<<locked>>
95%
58146
89%
**07
100%
ADI AR 2218
<<locked>>
97%
54244
83%
**62
99%
ADI AR 2225
<<locked>>
97%
56927
88%
**20
100%
Accurate 3100
<<locked>>
86%
58088
89%
**05
100%
Accurate 8700
<<locked>>
97%
43178
66%
**80
96%
Accurate MAGPRO
<<locked>>
86%
58204
90%
**20
100%
Alliant Reloder-19
<<locked>>
84%
58030
89%
**71
100%
Alliant Reloder-22
<<locked>>
86%
57972
89%
**90
100%
Alliant Reloder-23
<<locked>>
87%
58363
90%
**31
100%
Alliant Reloder-25
<<locked>>
91%
58262
90%
**97
100%
Alliant Reloder-33
<<locked>>
96%
57783
89%
**62
99%
Alliant Reloder-50
<<locked>>
97%
52315
81%
**80
98%
Hodgdon H1000 👍
<<locked>>
95%
58146
89%
**07
100%
Hodgdon H4831
<<locked>>
89%
58059
89%
**64
100%
Hodgdon H4831 SC
<<locked>>
86%
57870
89%
**64
100%
Hodgdon Retumbo
<<locked>>
97%
56927
88%
**20
100%
[Hodgdon US 869]*
<<locked>>
97%
47877
74%
**36
92%
IMR 4831
<<locked>>
83%
58305
90%
**05
100%
IMR 4955 Enduron
<<locked>>
87%
58131
89%
**41
100%
IMR 7828 SSC
<<locked>>
85%
58465
90%
**23
100%
IMR 7977 Enduron
<<locked>>
92%
58363
90%
**21
97%
IMR 8133 Enduron
<<locked>>
97%
52431
81%
**61
100%
Lovex D100
<<locked>>
95%
58407
90%
**51
96%
Lovex S071
<<locked>>
91%
58320
90%
**05
100%
Norma 217
<<locked>>
97%
53519
82%
**67
100%
Norma MRP
<<locked>>
84%
58247
90%
**03
100%
[Ramshot LRT]*
<<locked>>
97%
54070
83%
**90
94%
Ramshot Magnum
<<locked>>
87%
58131
89%
**67
100%
ReloadSwiss RS 14
<<locked>>
97%
37304
57%
**03
100%
ReloadSwiss RS 76
<<locked>>
91%
58392
90%
**59
100%
ReloadSwiss RS 80 👍
<<locked>>
93%
58160
90%
**53
100%
Rottweil R 904
<<locked>>
84%
58160
89%
**41
100%
Rottweil R 905
<<locked>>
84%
58349
90%
**71
100%
SNPE Vectan SP 13
<<locked>>
97%
45208
70%
**90
96%
Somchem S385
<<locked>>
84%
58015
89%
**31
100%
[Vihtavuori 20N29]*
<<locked>>
97%
43453
67%
**80
93%
[Vihtavuori 24N41]*
<<locked>>
97%
54723
84%
**57
94%
Vihtavuori N165
<<locked>>
89%
58044
89%
**15
100%
Vihtavuori N170
<<locked>>
97%
57261
88%
**51
98%
Vihtavuori N555
<<locked>>
84%
58305
90%
**35
100%
Vihtavuori N560
<<locked>>
86%
58276
90%
**26
100%
Vihtavuori N565
<<locked>>
90%
58334
90%
**00
100%
Vihtavuori N568 👍
<<locked>>
93%
58349
90%
**46
100%
Vihtavuori N570 👍
<<locked>>
94%
57943
89%
**72
99%
Winchester StaBALL HD
<<locked>>
87%
58378
90%
**07
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
52823
81%
**05
100%
ADI AR 2213
<<locked>>
81%
47979
74%
**59
100%
ADI AR 2217
<<locked>>
81%
35665
55%
**29
97%
[ADI AR 2218]*
<<locked>>
83%
32401
50%
**93
90%
ADI AR 2225
<<locked>>
81%
32938
51%
**06
99%
Accurate 3100
<<locked>>
81%
48631
75%
**84
100%
[Accurate 8700]*
<<locked>>
89%
32198
50%
**44
90%
Accurate MAGPRO
<<locked>>
81%
48283
74%
**72
99%
Alliant Reloder-19
<<locked>>
81%
52634
81%
**95
100%
Alliant Reloder-22
<<locked>>
81%
48776
75%
**66
100%
Alliant Reloder-23
<<locked>>
81%
47456
73%
**93
100%
Alliant Reloder-25
<<locked>>
81%
41321
64%
**51
100%
[Alliant Reloder-33]*
<<locked>>
81%
33388
51%
**16
92%
[Alliant Reloder-50]*
<<locked>>
83%
31618
49%
**60
90%
Hodgdon H1000
<<locked>>
81%
35665
55%
**29
97%
Hodgdon H4831
<<locked>>
81%
44585
69%
**61
99%
Hodgdon H4831 SC
<<locked>>
81%
49603
76%
**46
99%
Hodgdon Retumbo
<<locked>>
81%
32938
51%
**06
99%
[Hodgdon US 869]*
<<locked>>
93%
42467
65%
**41
90%
IMR 4831
<<locked>>
81%
54099
83%
**56
100%
IMR 4955 Enduron
<<locked>>
81%
48037
74%
**90
99%
IMR 7828 SSC
<<locked>>
81%
49763
77%
**95
100%
[IMR 7977 Enduron]*
<<locked>>
81%
40857
63%
**33
92%
IMR 8133 Enduron
<<locked>>
81%
30385
47%
**28
95%
[Lovex D100]*
<<locked>>
85%
40524
62%
**56
90%
Lovex S071
<<locked>>
81%
41800
64%
**69
100%
Norma 217
<<locked>>
81%
30792
47%
**57
98%
Norma MRP
<<locked>>
81%
51996
80%
**25
100%
[Ramshot LRT]*
<<locked>>
90%
42540
65%
**80
90%
Ramshot Magnum
<<locked>>
81%
47166
73%
**16
100%
ReloadSwiss RS 14
<<locked>>
90%
33968
52%
**44
100%
ReloadSwiss RS 76
<<locked>>
81%
39987
62%
**84
100%
ReloadSwiss RS 80
<<locked>>
81%
36680
56%
**82
96%
Rottweil R 904
<<locked>>
81%
53316
82%
**75
100%
Rottweil R 905
<<locked>>
81%
52301
80%
**89
100%
[SNPE Vectan SP 13]*
<<locked>>
87%
32024
49%
**24
90%
Somchem S385
<<locked>>
81%
52692
81%
**59
100%
[Vihtavuori 20N29]*
<<locked>>
92%
36245
56%
**33
90%
[Vihtavuori 24N41]*
<<locked>>
90%
42873
66%
**57
90%
Vihtavuori N165
<<locked>>
81%
44744
69%
**31
100%
[Vihtavuori N170]*
<<locked>>
81%
34200
53%
**38
91%
Vihtavuori N555
<<locked>>
81%
52301
81%
**59
100%
Vihtavuori N560
<<locked>>
81%
48907
75%
**85
99%
Vihtavuori N565
<<locked>>
81%
43004
66%
**67
99%
Vihtavuori N568
<<locked>>
81%
37971
58%
**02
96%
[Vihtavuori N570]*
<<locked>>
81%
36056
56%
**88
93%
Winchester StaBALL HD
<<locked>>
81%
46949
72%
**59
100%

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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