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Load data for .50 BMG (12,7 × 99 mm NATO) + .510 | 647gr | Barnes TAC-X

Recommended Powder(s): ADI AR 2218, IMR 8133 Enduron, Norma 217, ReloadSwiss RS 80, Vihtavuori N568

.50 BMG (12,7 × 99 mm NATO) + .510 | 647gr | Barnes TAC-X

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.510 | 647gr | Barnes TAC-X
Manufacturer SKU:
30695
Bullet Weight:
647gr | 41.9g
Bullet Diameter:
0.510" | 12.95mm
Bullet Length:
1.890" | 48.0mm
Caliber:
.50 BMG (12,7 × 99 mm NATO) load data
Case Length (l3):
3.900" | 99.1mm
Cartridge Length (C.O.L.):
5.368" | 136.4mm
Seated Depth:
0.422" | 10.7mm
Shank Seated Depth:
0.233" | 5.9mm
Case Capacity:
300.0 Grains of Water | 19.48 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
53664 psi | 3700 bar
LID:
LID_B867_C832
Last updated:
2025-02-02
Recommended Twist Rate:
1:22 - 1:18

Load data for 70 loads in caliber .50 BMG (12,7 × 99 mm NATO) with .510 | 647gr | Barnes TAC-X bullet and 35 powders such as ADI AR 2218, IMR 8133 Enduron, Norma 217, 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".

  • Muzzle velocity vs. barrel length

    Every 1 inch additional barrel length increases muzzle velocity by approx. -305.9 fps

  • .

    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 2213
<<locked>>
84%
53577
100%
**18
100%
ADI AR 2217
<<locked>>
92%
53592
100%
**15
100%
ADI AR 2218 👍
<<locked>>
96%
53635
100%
**36
99%
ADI AR 2225
<<locked>>
94%
53577
100%
**54
100%
Accurate 3100
<<locked>>
83%
53461
100%
**20
100%
Accurate 8700
<<locked>>
97%
44005
82%
**74
95%
Accurate MAGPRO
<<locked>>
83%
53374
99%
**25
99%
Alliant Reloder-22
<<locked>>
83%
53563
100%
**05
100%
Alliant Reloder-23
<<locked>>
84%
53534
100%
**46
100%
Alliant Reloder-25
<<locked>>
88%
53447
100%
**02
100%
Alliant Reloder-33
<<locked>>
93%
53432
100%
**80
98%
Alliant Reloder-50
<<locked>>
97%
53055
99%
**74
98%
Hodgdon H1000
<<locked>>
92%
53592
100%
**15
100%
Hodgdon H4831
<<locked>>
86%
53476
100%
**69
100%
Hodgdon Retumbo
<<locked>>
94%
53577
100%
**54
100%
[Hodgdon US 869]*
<<locked>>
97%
48646
91%
**36
92%
IMR 4955 Enduron
<<locked>>
84%
53490
100%
**46
100%
IMR 7977 Enduron
<<locked>>
89%
53388
99%
**26
95%
IMR 8133 Enduron 👍
<<locked>>
97%
53461
100%
**51
100%
[Lovex D100]*
<<locked>>
93%
53548
100%
**66
94%
Lovex S071
<<locked>>
88%
53461
100%
**20
100%
Norma 217 👍
<<locked>>
96%
53577
100%
**51
100%
[Ramshot LRT]*
<<locked>>
96%
53490
100%
**64
94%
Ramshot Magnum
<<locked>>
84%
53621
100%
**89
100%
ReloadSwiss RS 76
<<locked>>
88%
53505
100%
**80
100%
ReloadSwiss RS 80 👍
<<locked>>
90%
53461
100%
**61
100%
SNPE Vectan SP 13
<<locked>>
97%
46166
86%
**87
96%
[Vihtavuori 20N29]*
<<locked>>
97%
43976
82%
**64
93%
[Vihtavuori 24N41]*
<<locked>>
96%
53577
100%
**25
94%
Vihtavuori N165
<<locked>>
86%
53534
100%
**39
100%
Vihtavuori N170
<<locked>>
94%
53592
100%
**75
97%
Vihtavuori N565
<<locked>>
87%
53345
99%
**05
100%
Vihtavuori N568 👍
<<locked>>
90%
53650
100%
**64
99%
Vihtavuori N570
<<locked>>
91%
53650
100%
**94
98%
Winchester StaBALL HD
<<locked>>
84%
53577
100%
**18
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2213
<<locked>>
81%
49008
91%
**46
100%
ADI AR 2217
<<locked>>
81%
36680
68%
**16
97%
[ADI AR 2218]*
<<locked>>
83%
33228
62%
**87
90%
ADI AR 2225
<<locked>>
81%
33808
63%
**93
99%
Accurate 3100
<<locked>>
81%
49588
92%
**64
100%
[Accurate 8700]*
<<locked>>
89%
32996
61%
**31
90%
Accurate MAGPRO
<<locked>>
81%
49139
92%
**59
98%
Alliant Reloder-22
<<locked>>
81%
49777
93%
**43
100%
Alliant Reloder-23
<<locked>>
81%
48530
90%
**70
100%
Alliant Reloder-25
<<locked>>
81%
42366
79%
**28
100%
[Alliant Reloder-33]*
<<locked>>
81%
34156
64%
**03
92%
[Alliant Reloder-50]*
<<locked>>
84%
32764
61%
**57
90%
Hodgdon H1000
<<locked>>
81%
36680
68%
**16
97%
Hodgdon H4831
<<locked>>
81%
45440
85%
**34
99%
Hodgdon Retumbo
<<locked>>
81%
33808
63%
**93
99%
[Hodgdon US 869]*
<<locked>>
94%
43874
82%
**48
90%
IMR 4955 Enduron
<<locked>>
81%
49081
91%
**70
99%
[IMR 7977 Enduron]*
<<locked>>
81%
41698
78%
**20
92%
IMR 8133 Enduron
<<locked>>
81%
31299
58%
**08
95%
[Lovex D100]*
<<locked>>
85%
41394
77%
**56
90%
Lovex S071
<<locked>>
81%
42801
80%
**56
100%
Norma 217
<<locked>>
81%
31691
59%
**38
97%
[Ramshot LRT]*
<<locked>>
90%
43540
81%
**87
90%
Ramshot Magnum
<<locked>>
81%
47979
89%
**03
100%
ReloadSwiss RS 76
<<locked>>
81%
40944
76%
**67
100%
ReloadSwiss RS 80
<<locked>>
81%
37652
70%
**69
96%
[SNPE Vectan SP 13]*
<<locked>>
87%
33069
62%
**18
90%
[Vihtavuori 20N29]*
<<locked>>
93%
37985
71%
**43
90%
[Vihtavuori 24N41]*
<<locked>>
90%
43758
82%
**51
90%
Vihtavuori N165
<<locked>>
81%
45847
85%
**08
100%
[Vihtavuori N170]*
<<locked>>
81%
35099
65%
**21
91%
Vihtavuori N565
<<locked>>
81%
43932
82%
**44
99%
Vihtavuori N568
<<locked>>
81%
38827
72%
**82
96%
[Vihtavuori N570]*
<<locked>>
81%
37115
69%
**69
93%
Winchester StaBALL HD
<<locked>>
81%
48283
90%
**46
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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