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Load data for .300 Rem. Ultra Mag + .309 | 220gr | Ares RNBBNG

Recommended Powder(s): ADI AR 2217, Bofors RP30, Hodgdon H1000, ReloadSwiss RS 80, Vihtavuori N568

.300 Rem. Ultra Mag + .309 | 220gr | Ares RNBBNG

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.309 | 220gr | Ares RNBBNG
Manufacturer SKU:
.30-220 RNBBNG .309
Bullet Weight:
220gr | 14.3g
Bullet Diameter:
0.309" | 7.85mm
Bullet Length:
1.271" | 32.3mm
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:
0.577" | 14.7mm
Shank Seated Depth:
0.577" | 14.7mm
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_B12011_C374
Last updated:
2025-12-08

Load data for 0 loads in caliber .300 Rem. Ultra Mag with .309 | 220gr | Ares RNBBNG bullet and 0 powders such as ADI AR 2217, Bofors RP30, Hodgdon H1000, ReloadSwiss RS 80, Vihtavuori N568. 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 2209
<<locked>>
84%
57856
89%
**67
100%
ADI AR 2213
<<locked>>
87%
58392
90%
**17
100%
ADI AR 2217 👍
<<locked>>
95%
58320
90%
**10
100%
ADI AR 2218
<<locked>>
97%
54375
84%
**66
99%
ADI AR 2225
<<locked>>
97%
57101
88%
**23
100%
Accurate 3100
<<locked>>
86%
58276
90%
**12
100%
Accurate 8700
<<locked>>
97%
43294
67%
**84
96%
Accurate MAGPRO
<<locked>>
86%
57928
89%
**23
100%
Alliant Reloder-19
<<locked>>
84%
58218
90%
**74
100%
Alliant Reloder-22
<<locked>>
86%
58160
90%
**97
100%
Alliant Reloder-23
<<locked>>
87%
58015
89%
**28
100%
Alliant Reloder-25
<<locked>>
91%
58320
90%
**00
100%
Alliant Reloder-33
<<locked>>
96%
57928
89%
**66
99%
Alliant Reloder-50
<<locked>>
97%
52460
81%
**71
98%
Baschieri & Pellagri 109
<<locked>>
88%
58349
90%
**77
99%
Bofors RP15
<<locked>>
89%
58363
90%
**00
100%
Bofors RP30 👍
<<locked>>
93%
58218
90%
**20
100%
Bofors RP5
<<locked>>
86%
58160
90%
**97
100%
Hodgdon H1000 👍
<<locked>>
95%
58320
90%
**10
100%
Hodgdon H4831
<<locked>>
89%
58247
90%
**67
100%
Hodgdon H4831 SC
<<locked>>
86%
58044
89%
**61
100%
Hodgdon Retumbo
<<locked>>
97%
57101
88%
**23
100%
[Hodgdon US 869]*
<<locked>>
97%
47993
74%
**39
92%
Hodgdon TrailBoss
<<locked>>
97%
36419
56%
**70
100%
IMR 4831
<<locked>>
83%
57841
89%
**05
100%
IMR 4955 Enduron
<<locked>>
87%
58291
90%
**44
100%
IMR 7828 SSC
<<locked>>
85%
57986
89%
**17
100%
IMR 7977 Enduron
<<locked>>
92%
57783
89%
**12
97%
IMR 8133 Enduron
<<locked>>
97%
52591
81%
**54
100%
Lovex D100
<<locked>>
95%
58392
90%
**54
96%
Lovex S071
<<locked>>
91%
57914
89%
**08
100%
Norma 217
<<locked>>
97%
53693
83%
**74
100%
Norma MRP
<<locked>>
84%
58189
90%
**07
100%
Ramshot Grand
<<locked>>
83%
58204
90%
**20
100%
[Ramshot LRT]*
<<locked>>
97%
53882
83%
**94
94%
Ramshot Magnum
<<locked>>
86%
58102
89%
**64
100%
ReloadSwiss RS 14
<<locked>>
96%
37231
57%
**06
100%
ReloadSwiss RS 76
<<locked>>
91%
57986
89%
**56
100%
ReloadSwiss RS 80 👍
<<locked>>
93%
58334
90%
**56
100%
Rottweil R 904
<<locked>>
84%
58334
90%
**48
100%
Rottweil R 905
<<locked>>
84%
58001
89%
**67
100%
SNPE Vectan SP 13
<<locked>>
97%
45339
70%
**97
96%
Shooters World 50 BMG
<<locked>>
95%
58392
90%
**54
96%
Somchem S385
<<locked>>
84%
58189
90%
**35
100%
[Vihtavuori 20N29]*
<<locked>>
97%
43569
67%
**74
93%
[Vihtavuori 24N41]*
<<locked>>
97%
54853
84%
**61
94%
Vihtavuori N165
<<locked>>
89%
58218
90%
**21
100%
Vihtavuori N170
<<locked>>
97%
57406
88%
**54
98%
Vihtavuori N555
<<locked>>
84%
58392
90%
**38
100%
Vihtavuori N560
<<locked>>
86%
58450
90%
**30
100%
Vihtavuori N565
<<locked>>
90%
57957
89%
**97
100%
Vihtavuori N568 👍
<<locked>>
93%
57827
89%
**36
100%
Vihtavuori N570
<<locked>>
94%
58102
89%
**79
99%
Winchester StaBALL HD
<<locked>>
86%
57479
88%
**97
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
52895
81%
**02
100%
ADI AR 2213
<<locked>>
81%
48066
74%
**62
100%
ADI AR 2217
<<locked>>
81%
35810
55%
**33
97%
[ADI AR 2218]*
<<locked>>
83%
32430
50%
**97
90%
ADI AR 2225
<<locked>>
81%
33069
51%
**13
99%
Accurate 3100
<<locked>>
81%
48820
75%
**80
100%
[Accurate 8700]*
<<locked>>
88%
31937
49%
**34
90%
Accurate MAGPRO
<<locked>>
81%
48153
74%
**75
99%
Alliant Reloder-19
<<locked>>
81%
52808
81%
**98
100%
Alliant Reloder-22
<<locked>>
81%
48849
75%
**59
100%
Alliant Reloder-23
<<locked>>
81%
47427
73%
**87
100%
Alliant Reloder-25
<<locked>>
81%
41495
64%
**54
100%
[Alliant Reloder-33]*
<<locked>>
81%
33431
51%
**16
92%
[Alliant Reloder-50]*
<<locked>>
83%
31415
48%
**60
90%
Baschieri & Pellagri 109
<<locked>>
81%
45701
70%
**80
97%
Bofors RP15
<<locked>>
81%
45339
70%
**07
100%
Bofors RP30
<<locked>>
81%
38798
60%
**08
98%
Bofors RP5
<<locked>>
81%
48849
75%
**59
100%
Hodgdon H1000
<<locked>>
81%
35810
55%
**33
97%
Hodgdon H4831
<<locked>>
81%
44744
69%
**57
99%
Hodgdon H4831 SC
<<locked>>
81%
49763
77%
**39
99%
Hodgdon Retumbo
<<locked>>
81%
33069
51%
**13
99%
[Hodgdon US 869]*
<<locked>>
93%
42482
65%
**41
90%
Hodgdon TrailBoss
<<locked>>
94%
34954
54%
**44
100%
IMR 4831
<<locked>>
81%
54302
84%
**62
100%
IMR 4955 Enduron
<<locked>>
81%
48196
74%
**97
99%
IMR 7828 SSC
<<locked>>
81%
49951
77%
**98
100%
[IMR 7977 Enduron]*
<<locked>>
81%
40915
63%
**36
92%
IMR 8133 Enduron
<<locked>>
81%
30545
47%
**34
95%
[Lovex D100]*
<<locked>>
85%
40654
63%
**59
90%
Lovex S071
<<locked>>
81%
41989
65%
**75
100%
Norma 217
<<locked>>
81%
30777
47%
**57
98%
Norma MRP
<<locked>>
81%
52185
80%
**31
100%
Ramshot Grand
<<locked>>
81%
53519
82%
**54
100%
[Ramshot LRT]*
<<locked>>
90%
42322
65%
**80
90%
Ramshot Magnum
<<locked>>
81%
47021
72%
**16
100%
ReloadSwiss RS 14
<<locked>>
90%
33910
52%
**44
100%
ReloadSwiss RS 76
<<locked>>
81%
40045
62%
**87
100%
ReloadSwiss RS 80
<<locked>>
81%
36825
57%
**85
96%
Rottweil R 904
<<locked>>
81%
53490
82%
**82
100%
Rottweil R 905
<<locked>>
81%
52489
81%
**92
100%
[SNPE Vectan SP 13]*
<<locked>>
87%
32068
49%
**24
90%
[Shooters World 50 BMG]*
<<locked>>
85%
40654
63%
**59
90%
Somchem S385
<<locked>>
81%
52881
81%
**66
100%
[Vihtavuori 20N29]*
<<locked>>
92%
36361
56%
**36
90%
[Vihtavuori 24N41]*
<<locked>>
90%
42380
65%
**44
90%
Vihtavuori N165
<<locked>>
81%
44904
69%
**28
100%
[Vihtavuori N170]*
<<locked>>
81%
34330
53%
**34
91%
Vihtavuori N555
<<locked>>
81%
52504
81%
**62
100%
Vihtavuori N560
<<locked>>
81%
48979
75%
**89
99%
Vihtavuori N565
<<locked>>
81%
43163
66%
**70
99%
Vihtavuori N568
<<locked>>
81%
38116
59%
**08
96%
[Vihtavuori N570]*
<<locked>>
81%
36216
56%
**85
93%
Winchester StaBALL HD
<<locked>>
81%
46992
72%
**62
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.

<<locked>>... you need to buy an access license to unlock the data

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