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Load data for .458 Win.Mag. + .458 | 250gr | Impala LWHV LS

Recommended Powder(s): ADI AR 2207, Accurate 1680, Alliant Reloder-7, Norma 200, ReloadSwiss RS 36

.458 Win.Mag. + .458 | 250gr | Impala LWHV LS

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.458 | 250gr | Impala LWHV LS
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.458" | 11.63mm
Bullet Length:
0.925" | 23.5mm
Caliber:
.458 Win.Mag. load data
Case Length (l3):
2.500" | 63.5mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.135" | 3.4mm
Shank Seated Depth:
0.135" | 3.4mm
Case Capacity:
95.0 Grains of Water | 6.17 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
62366 psi | 4300 bar
LID:
LID_B3027_C796
Last updated:
2025-02-02

Load data for 64 loads in caliber .458 Win.Mag. with .458 | 250gr | Impala LWHV LS bullet and 32 powders such as ADI AR 2207, Accurate 1680, Alliant Reloder-7, Norma 200, ReloadSwiss RS 36. 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 2205
<<locked>>
86%
55434
89%
**99
100%
ADI AR 2207 👍
<<locked>>
97%
52315
84%
**49
100%
ADI AR 2219
<<locked>>
97%
47253
76%
**87
95%
Accurate 1680 👍
<<locked>>
90%
55999
90%
**46
98%
Accurate 2015
<<locked>>
97%
39146
63%
**20
96%
[Accurate 2495]*
<<locked>>
97%
30400
49%
**15
92%
Accurate 5744
<<locked>>
84%
55622
89%
**43
100%
Alliant AR-Comp
<<locked>>
97%
34969
56%
**87
97%
Alliant Reloder-10x
<<locked>>
97%
43468
70%
**22
98%
Alliant Reloder-7 👍
<<locked>>
97%
54563
87%
**46
100%
Baschieri & Pellagri 106
<<locked>>
97%
48791
78%
**02
96%
[Hodgdon CFE BLK]*
<<locked>>
97%
56057
90%
**97
93%
[Hodgdon H322]*
<<locked>>
97%
39610
64%
**30
93%
[Hodgdon H335]*
<<locked>>
97%
46833
75%
**81
94%
Hodgdon H4198
<<locked>>
97%
52576
84%
**64
96%
Hodgdon TrailBoss
<<locked>>
97%
29689
48%
**26
100%
IMR 4198
<<locked>>
97%
45977
74%
**18
99%
IMR 4227
<<locked>>
92%
55738
89%
**07
100%
Lovex D060
<<locked>>
86%
55622
89%
**43
100%
Lovex S053
<<locked>>
94%
56043
90%
**94
100%
Norma 200 👍
<<locked>>
97%
49530
79%
**10
99%
ReloadSwiss RS 14
<<locked>>
97%
29356
47%
**65
100%
ReloadSwiss RS 36 👍
<<locked>>
93%
55724
89%
**49
100%
[ReloadSwiss RS 40]*
<<locked>>
97%
42612
68%
**76
91%
SNPE Vectan BA6 1/2
<<locked>>
97%
54998
88%
**23
100%
[SNPE Vectan SP 10]*
<<locked>>
97%
47616
76%
**90
94%
Shooters World Buffalo Rifle
<<locked>>
86%
55622
89%
**43
100%
[Somchem S335]*
<<locked>>
97%
35447
57%
**85
91%
Vihtavuori N110
<<locked>>
88%
55506
89%
**12
100%
Vihtavuori N120
<<locked>>
97%
47863
77%
**35
100%
Vihtavuori N130
<<locked>>
97%
40988
66%
**10
97%
[Vihtavuori N133]*
<<locked>>
97%
34185
55%
**59
93%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2205
<<locked>>
81%
47776
77%
**87
100%
ADI AR 2207
<<locked>>
81%
32372
52%
**66
98%
[ADI AR 2219]*
<<locked>>
85%
33214
53%
**79
90%
Accurate 1680
<<locked>>
81%
42003
67%
**10
95%
[Accurate 2015]*
<<locked>>
83%
26165
42%
**85
90%
[Accurate 2495]*
<<locked>>
92%
26527
43%
**03
90%
Accurate 5744
<<locked>>
81%
50734
81%
**64
99%
[Alliant AR-Comp]*
<<locked>>
84%
24627
39%
**59
90%
[Alliant Reloder-10x]*
<<locked>>
81%
27209
44%
**25
92%
Alliant Reloder-7
<<locked>>
81%
34316
55%
**56
96%
[Baschieri & Pellagri 106]*
<<locked>>
82%
30603
49%
**21
90%
[Hodgdon CFE BLK]*
<<locked>>
91%
46412
74%
**33
90%
[Hodgdon H322]*
<<locked>>
91%
33344
53%
**75
90%
[Hodgdon H335]*
<<locked>>
89%
36666
59%
**61
90%
[Hodgdon H4198]*
<<locked>>
81%
33098
53%
**70
90%
Hodgdon TrailBoss
<<locked>>
88%
26063
42%
**44
100%
[IMR 4198]*
<<locked>>
81%
29762
48%
**41
94%
IMR 4227
<<locked>>
81%
39769
64%
**38
99%
Lovex D060
<<locked>>
81%
48008
77%
**15
99%
Lovex S053
<<locked>>
81%
39204
63%
**15
100%
Norma 200
<<locked>>
81%
30850
49%
**20
95%
ReloadSwiss RS 14
<<locked>>
85%
24540
39%
**50
100%
ReloadSwiss RS 36
<<locked>>
81%
39204
63%
**64
99%
[ReloadSwiss RS 40]*
<<locked>>
94%
39421
63%
**07
90%
SNPE Vectan BA6 1/2
<<locked>>
81%
36767
59%
**41
100%
[SNPE Vectan SP 10]*
<<locked>>
88%
36042
58%
**54
90%
Shooters World Buffalo Rifle
<<locked>>
81%
48008
77%
**15
99%
[Somchem S335]*
<<locked>>
93%
32329
52%
**10
90%
Vihtavuori N110
<<locked>>
81%
46224
74%
**80
100%
Vihtavuori N120
<<locked>>
81%
30719
49%
**84
99%
[Vihtavuori N130]*
<<locked>>
81%
26020
42%
**36
91%
[Vihtavuori N133]*
<<locked>>
90%
28311
45%
**95
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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