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Load data for .505 Mag. Gibbs + .505 | 535gr | Swift A-Frame

Recommended Powder(s): Somchem S365

.505 Mag. Gibbs + .505 | 535gr | Swift A-Frame

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.505 | 535gr | Swift A-Frame
Bullet Weight:
535gr | 34.7g
Bullet Diameter:
0.505" | 12.83mm
Bullet Length:
1.200" | 30.5mm
Caliber:
.505 Mag. Gibbs load data
Case Length (l3):
3.150" | 80.0mm
Cartridge Length (C.O.L.):
3.694" | 93.8mm
Seated Depth:
0.656" | 16.7mm
Shank Seated Depth:
0.656" | 16.7mm
Case Capacity:
181.0 Grains of Water | 11.75 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
39160 psi | 2700 bar
LID:
LID_B10887_C869
Last updated:
2025-02-02

Load data for 44 loads in caliber .505 Mag. Gibbs with .505 | 535gr | Swift A-Frame bullet and 22 powders such as Somchem S365. 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
[Accurate 3100]*
<<locked>>
95%
35244
90%
**21
94%
Accurate 4350
<<locked>>
85%
35201
90%
**38
96%
Alliant Reloder-16
<<locked>>
85%
34969
89%
**28
96%
Alliant Reloder-23
<<locked>>
96%
35157
90%
**67
98%
[Alliant Reloder-25]*
<<locked>>
97%
32285
82%
**85
92%
Alliant Reloder-26
<<locked>>
93%
35230
90%
**20
95%
[Hodgdon H4350]*
<<locked>>
86%
34925
89%
**59
91%
Hodgdon Hybrid 100V
<<locked>>
88%
35172
90%
**11
98%
[IMR 4350]*
<<locked>>
85%
35215
90%
**65
92%
IMR 4831
<<locked>>
90%
35186
90%
**15
96%
[Lovex S070]*
<<locked>>
83%
35143
90%
**69
93%
[Lovex S071]*
<<locked>>
97%
31589
81%
**46
92%
Norma URP
<<locked>>
85%
35012
89%
**21
96%
[Ramshot Hunter]*
<<locked>>
86%
34969
89%
**21
93%
ReloadSwiss RS 62
<<locked>>
86%
35143
90%
**54
96%
[ReloadSwiss RS 70]*
<<locked>>
85%
35172
90%
**47
94%
Somchem S365 👍
<<locked>>
88%
34998
89%
**64
99%
[Somchem S385]*
<<locked>>
91%
34969
89%
**98
91%
Vihtavuori N150
<<locked>>
83%
34998
89%
**49
99%
Vihtavuori N555
<<locked>>
93%
35128
90%
**80
97%
Winchester 6.5 StaBALL
<<locked>>
84%
35027
89%
**75
98%
Winchester StaBALL HD
<<locked>>
97%
32314
83%
**74
97%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[Accurate 3100]*
<<locked>>
88%
27862
71%
**51
90%
[Accurate 4350]*
<<locked>>
81%
30618
78%
**33
94%
[Alliant Reloder-16]*
<<locked>>
81%
31256
80%
**42
94%
[Alliant Reloder-23]*
<<locked>>
81%
23119
59%
**26
90%
[Alliant Reloder-25]*
<<locked>>
94%
30037
77%
**26
90%
[Alliant Reloder-26]*
<<locked>>
86%
27862
71%
**13
90%
[Hodgdon H4350]*
<<locked>>
83%
32489
83%
**03
90%
Hodgdon Hybrid 100V
<<locked>>
81%
28877
74%
**57
95%
[IMR 4350]*
<<locked>>
81%
32242
82%
**96
90%
[IMR 4831]*
<<locked>>
81%
27383
70%
**34
93%
[Lovex S070]*
<<locked>>
81%
33228
85%
**26
92%
[Lovex S071]*
<<locked>>
93%
27934
71%
**57
90%
[Norma URP]*
<<locked>>
81%
31270
80%
**36
94%
[Ramshot Hunter]*
<<locked>>
81%
30443
78%
**13
91%
[ReloadSwiss RS 62]*
<<locked>>
81%
30313
77%
**39
93%
[ReloadSwiss RS 70]*
<<locked>>
81%
30530
78%
**29
92%
Somchem S365
<<locked>>
81%
27978
71%
**90
97%
[Somchem S385]*
<<locked>>
88%
32300
82%
**46
90%
Vihtavuori N150
<<locked>>
81%
32822
84%
**10
98%
[Vihtavuori N555]*
<<locked>>
81%
24381
62%
**95
91%
Winchester 6.5 StaBALL
<<locked>>
81%
32184
82%
**13
97%
[Winchester StaBALL HD]*
<<locked>>
87%
24395
62%
**11
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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