top of page

Load data for 458 x 2'' American + .458 | 260gr | Lehigh Defense Xtreme Penetrator

Recommended Powder(s): ADI AR 2205, Accurate No. 11 FS, Hodgdon LilGun, Lovex S040

458 x 2'' American + .458 | 260gr | Lehigh Defense Xtreme Penetrator

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.458 | 260gr | Lehigh Defense Xtreme Penetrator
Manufacturer SKU:
Muzz 07458260SPM
Bullet Weight:
260gr | 16.8g
Bullet Diameter:
0.458" | 11.63mm
Bullet Length:
<<locked>>
Caliber:
458 x 2'' American load data
Case Length (l3):
2.000" | 50.8mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
73.0 Grains of Water | 4.74 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
59988 psi | 4136 bar
LID:
LID_B11111_C792
Last updated:
2026-05-31
Recommended Twist Rate:
1:34 - 1:28

Load data for 38 loads in caliber 458 x 2'' American with .458 | 260gr | Lehigh Defense Xtreme Penetrator bullet and 19 powders such as ADI AR 2205, Accurate No. 11 FS, Hodgdon LilGun, Lovex S040. 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".

  • No data yet

  • 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.

    .

    Loading_icon.gif

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 APS 450
<<locked>>
83%
53432
89%
**86
100%
ADI AR 2205 👍
<<locked>>
97%
53766
90%
**80
100%
ADI AR 2207
<<locked>>
97%
30937
52%
**90
95%
[Accurate 1680]*
<<locked>>
96%
38653
64%
**26
92%
Accurate 5744
<<locked>>
90%
53229
89%
**75
97%
Accurate No. 11 FS 👍
<<locked>>
94%
53287
89%
**56
99%
[Alliant Reloder-7]*
<<locked>>
97%
33069
55%
**77
91%
Hodgdon LilGun 👍
<<locked>>
90%
53780
90%
**15
100%
IMR 4227
<<locked>>
97%
41887
70%
**92
97%
Lovex D060
<<locked>>
97%
53229
89%
**75
97%
Lovex D063
<<locked>>
93%
53113
89%
**56
97%
Lovex S040 👍
<<locked>>
90%
53461
89%
**70
100%
Lovex S053
<<locked>>
96%
39088
65%
**65
99%
ReloadSwiss RS 36
<<locked>>
97%
39943
67%
**08
96%
SNPE Vectan BA6 1/2
<<locked>>
97%
36521
61%
**28
100%
Shooters World Blackout
<<locked>>
93%
53113
89%
**56
97%
Shooters World Buffalo Rifle
<<locked>>
97%
53229
89%
**75
97%
Vihtavuori N110
<<locked>>
97%
46833
78%
**41
100%
Vihtavuori N120
<<locked>>
97%
31285
52%
**67
96%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
51285
85%
**60
100%
ADI AR 2205
<<locked>>
81%
33040
55%
**56
98%
[ADI AR 2207]*
<<locked>>
87%
23018
38%
**67
90%
[Accurate 1680]*
<<locked>>
92%
33272
55%
**28
90%
[Accurate 5744]*
<<locked>>
81%
39740
66%
**56
94%
Accurate No. 11 FS
<<locked>>
81%
34490
58%
**60
96%
[Alliant Reloder-7]*
<<locked>>
94%
30661
51%
**24
90%
Hodgdon LilGun
<<locked>>
81%
38537
64%
**11
100%
[IMR 4227]*
<<locked>>
81%
26179
44%
**54
90%
[Lovex D060]*
<<locked>>
81%
33678
56%
**31
92%
[Lovex D063]*
<<locked>>
81%
35882
60%
**77
93%
Lovex S040
<<locked>>
81%
41553
69%
**10
100%
Lovex S053
<<locked>>
81%
24758
41%
**51
95%
[ReloadSwiss RS 36]*
<<locked>>
83%
26179
44%
**06
90%
SNPE Vectan BA6 1/2
<<locked>>
81%
23830
40%
**69
100%
[Shooters World Blackout]*
<<locked>>
81%
35882
60%
**77
93%
[Shooters World Buffalo Rifle]*
<<locked>>
81%
33678
56%
**31
92%
Vihtavuori N110
<<locked>>
81%
29356
49%
**49
100%
[Vihtavuori N120]*
<<locked>>
83%
21031
35%
**75
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

bottom of page