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Load data for .450 N.E. 3 1/4'' + .458 | 450gr | Swift A-Frame

Recommended Powder(s): Alliant Reloder- TS 15.5, Bofors RP3, Somchem S365

.450 N.E. 3 1/4'' + .458 | 450gr | Swift A-Frame

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.458 | 450gr | Swift A-Frame
Bullet Weight:
450gr | 29.2g
Bullet Diameter:
0.458" | 11.63mm
Bullet Length:
1.310" | 33.3mm
Caliber:
.450 N.E. 3 1/4'' load data
Case Length (l3):
3.250" | 82.5mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
136.0 Grains of Water | 8.83 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
44237 psi | 3050 bar
LID:
LID_B10882_C765
Last updated:
2026-01-21

Load data for 100 loads in caliber .450 N.E. 3 1/4'' with .458 | 450gr | Swift A-Frame bullet and 50 powders such as Alliant Reloder- TS 15.5, Bofors RP3, 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
ADI AR 2208
84%
90%
97%
Accurate 2700
85%
90%
92%
Accurate 3100
97%
73%
91%
Accurate 4350
93%
90%
97%
Alliant Reloder- TS 15.5
84%
89%
99%
Alliant Reloder-16
92%
89%
96%
Alliant Reloder-17
89%
89%
98%
Alliant Reloder-23
97%
73%
95%
Alliant Reloder-26
97%
79%
93%
Bofors RP3
84%
89%
99%
Bofors RP7
87%
89%
92%
Hodgdon CFE223
83%
90%
97%
Hodgdon H380
84%
90%
96%
Hodgdon H414
88%
89%
93%
Hodgdon H4350
94%
90%
92%
Hodgdon Hybrid 100V
95%
89%
98%
Hodgdon LVR
90%
90%
96%
Hodgdon Superperformance
90%
89%
92%
Hodgdon VARGET
84%
90%
97%
IMR 4064
85%
90%
97%
IMR 4166 Enduron
84%
89%
93%
IMR 4350
92%
89%
92%
IMR 4451 Enduron
86%
89%
93%
IMR 4831
97%
87%
96%
Lovex S065
89%
89%
95%
Lovex S070
91%
90%
93%
Norma URP
93%
90%
96%
Ramshot Big Game
83%
90%
98%
Ramshot Hunter
93%
89%
94%
ReloadSwiss RS 50
83%
90%
94%
ReloadSwiss RS 60
87%
90%
100%
ReloadSwiss RS 62
93%
90%
96%
ReloadSwiss RS 70
93%
90%
95%
Rottweil R 903
86%
89%
98%
Rottweil R 907
87%
89%
92%
SNPE Vectan SP 11
85%
89%
98%
SNPE Vectan Tubal 5000
84%
90%
100%
SNPE Vectan Tubal 7000
89%
89%
93%
Shooters World Long Rifle
89%
89%
95%
Somchem S355
86%
90%
98%
Somchem S365
96%
89%
99%
Somchem S385
97%
86%
91%
Vihtavuori N135
87%
90%
100%
Vihtavuori N150
91%
89%
99%
Vihtavuori N160
90%
90%
96%
Vihtavuori N550
90%
90%
96%
Vihtavuori N555
97%
77%
96%
Winchester 6.5 StaBALL
91%
89%
98%
Winchester 760
88%
89%
93%
Winchester StaBALL HD
97%
65%
93%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
36622
83%
***
96%
[Accurate 2700]*
<<locked>>
81%
35665
81%
***
90%
[Accurate 3100]*
<<locked>>
94%
30066
68%
***
90%
[Accurate 4350]*
<<locked>>
81%
26963
61%
***
91%
Alliant Reloder- TS 15.5
<<locked>>
81%
35911
81%
***
98%
[Alliant Reloder-16]*
<<locked>>
81%
28529
64%
***
91%
Alliant Reloder-17
<<locked>>
81%
31212
71%
***
95%
[Alliant Reloder-23]*
<<locked>>
87%
24584
56%
***
90%
[Alliant Reloder-26]*
<<locked>>
92%
30124
68%
***
90%
Bofors RP3
<<locked>>
81%
35679
81%
***
98%
[Bofors RP7]*
<<locked>>
83%
34809
79%
***
90%
Hodgdon CFE223
<<locked>>
81%
36782
83%
***
96%
Hodgdon H380
<<locked>>
81%
36579
83%
***
95%
[Hodgdon H414]*
<<locked>>
82%
33069
75%
***
90%
[Hodgdon H4350]*
<<locked>>
90%
35186
80%
***
90%
[Hodgdon Hybrid 100V]*
<<locked>>
81%
26107
59%
***
92%
[Hodgdon LVR]*
<<locked>>
81%
30356
69%
***
92%
[Hodgdon Superperformance]*
<<locked>>
88%
36434
82%
***
90%
Hodgdon VARGET
<<locked>>
81%
36172
82%
***
96%
IMR 4064
<<locked>>
81%
35766
81%
***
96%
[IMR 4166 Enduron]*
<<locked>>
81%
36114
82%
***
92%
[IMR 4350]*
<<locked>>
87%
34925
79%
***
90%
[IMR 4451 Enduron]*
<<locked>>
81%
34026
77%
***
90%
[IMR 4831]*
<<locked>>
82%
25570
58%
***
90%
[Lovex S065]*
<<locked>>
81%
31821
72%
***
92%
[Lovex S070]*
<<locked>>
83%
31981
72%
***
90%
[Norma URP]*
<<locked>>
81%
28224
64%
***
91%
Ramshot Big Game
<<locked>>
81%
37275
84%
***
97%
[Ramshot Hunter]*
<<locked>>
85%
31125
70%
***
90%
[ReloadSwiss RS 50]*
<<locked>>
81%
36738
83%
***
93%
ReloadSwiss RS 60
<<locked>>
81%
33011
75%
***
99%
[ReloadSwiss RS 62]*
<<locked>>
81%
27180
61%
***
90%
[ReloadSwiss RS 70]*
<<locked>>
84%
30647
69%
***
90%
Rottweil R 903
<<locked>>
81%
33721
76%
***
97%
[Rottweil R 907]*
<<locked>>
83%
34809
79%
***
90%
SNPE Vectan SP 11
<<locked>>
81%
34098
77%
***
96%
SNPE Vectan Tubal 5000
<<locked>>
81%
36201
82%
***
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
83%
31937
72%
***
90%
[Shooters World Long Rifle]*
<<locked>>
81%
31821
72%
***
92%
Somchem S355
<<locked>>
81%
34534
78%
***
97%
[Somchem S365]*
<<locked>>
81%
25440
58%
***
94%
[Somchem S385]*
<<locked>>
94%
35186
80%
***
90%
Vihtavuori N135
<<locked>>
81%
33605
76%
***
100%
Vihtavuori N150
<<locked>>
81%
29646
67%
***
97%
[Vihtavuori N160]*
<<locked>>
81%
30327
69%
***
92%
[Vihtavuori N550]*
<<locked>>
81%
30690
69%
***
93%
[Vihtavuori N555]*
<<locked>>
86%
24976
56%
***
90%
[Winchester 6.5 StaBALL]*
<<locked>>
81%
29356
66%
***
94%
[Winchester 760]*
<<locked>>
82%
33069
75%
***
90%
[Winchester StaBALL HD]*
<<locked>>
94%
26614
60%
***
91%

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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