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Load data for .45 Blaser + .458 | 300gr | H&N KS CuH

Recommended Powder(s): ADI AR 2207, IMR 4227, Lovex D060, ReloadSwiss RS 36, Shooters World Buffalo Rifle

.45 Blaser + .458 | 300gr | H&N KS CuH

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.458 | 300gr | H&N KS CuH
Bullet Weight:
300gr | 19.4g
Bullet Diameter:
0.458" | 11.63mm
Bullet Length:
0.800" | 20.3mm
Caliber:
.45 Blaser load data
Case Length (l3):
2.146" | 54.5mm
Cartridge Length (C.O.L.):
2.657" | 67.5mm
Seated Depth:
0.289" | 7.4mm
Shank Seated Depth:
0.269" | 6.8mm
Case Capacity:
84.0 Grains of Water | 5.45 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
53664 psi | 3700 bar
LID:
LID_B7550_C728
Last updated:
2025-01-01

Load data for 46 loads in caliber .45 Blaser with .458 | 300gr | H&N KS CuH bullet and 23 powders such as ADI AR 2207, IMR 4227, Lovex D060, ReloadSwiss RS 36, Shooters World Buffalo Rifle. 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%
48211
90%
**79
100%
ADI AR 2207 👍
<<locked>>
97%
42830
80%
**93
100%
[ADI AR 2219]*
<<locked>>
97%
39088
73%
**31
93%
Accurate 1680
<<locked>>
90%
48283
90%
**10
97%
[Accurate 2015]*
<<locked>>
97%
30052
56%
**60
94%
Accurate 5744
<<locked>>
83%
47732
89%
**87
99%
[Alliant AR-Comp]*
<<locked>>
97%
27441
51%
**24
94%
Alliant Reloder-10x
<<locked>>
97%
34069
63%
**59
96%
Alliant Reloder-7
<<locked>>
97%
45063
84%
**87
99%
Baschieri & Pellagri 106
<<locked>>
97%
40828
76%
**75
95%
Hodgdon H4198
<<locked>>
97%
44556
83%
**21
95%
IMR 4198
<<locked>>
97%
38754
72%
**79
98%
IMR 4227 👍
<<locked>>
92%
47747
89%
**70
100%
Lovex D060 👍
<<locked>>
86%
48037
90%
**93
99%
Lovex S053
<<locked>>
94%
48182
90%
**64
100%
Norma 200
<<locked>>
97%
38014
71%
**31
98%
ReloadSwiss RS 36 👍
<<locked>>
93%
47979
89%
**20
100%
SNPE Vectan BA6 1/2
<<locked>>
97%
47355
88%
**20
100%
[SNPE Vectan SP 10]*
<<locked>>
97%
39015
73%
**38
92%
Shooters World Buffalo Rifle 👍
<<locked>>
86%
48037
90%
**93
99%
Vihtavuori N110
<<locked>>
89%
48298
90%
**05
100%
Vihtavuori N120
<<locked>>
97%
39421
73%
**98
100%
Vihtavuori N130
<<locked>>
97%
32982
61%
**70
95%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2205
<<locked>>
81%
41162
77%
**80
100%
ADI AR 2207
<<locked>>
81%
25164
47%
**33
97%
[ADI AR 2219]*
<<locked>>
90%
31560
59%
**70
90%
[Accurate 1680]*
<<locked>>
81%
34780
65%
**74
94%
[Accurate 2015]*
<<locked>>
91%
24178
45%
**13
90%
Accurate 5744
<<locked>>
81%
44222
82%
**34
99%
[Alliant AR-Comp]*
<<locked>>
91%
22756
42%
**73
90%
[Alliant Reloder-10x]*
<<locked>>
84%
22249
41%
**57
90%
[Alliant Reloder-7]*
<<locked>>
81%
26658
50%
**19
94%
[Baschieri & Pellagri 106]*
<<locked>>
87%
29457
55%
**42
90%
[Hodgdon H4198]*
<<locked>>
85%
31198
58%
**65
90%
[IMR 4198]*
<<locked>>
81%
23931
45%
**28
92%
IMR 4227
<<locked>>
81%
33344
62%
**21
98%
Lovex D060
<<locked>>
81%
41916
78%
**88
98%
Lovex S053
<<locked>>
81%
31894
59%
**98
100%
[Norma 200]*
<<locked>>
81%
22002
41%
**51
91%
ReloadSwiss RS 36
<<locked>>
81%
31807
59%
**38
98%
SNPE Vectan BA6 1/2
<<locked>>
81%
30356
57%
**64
100%
[SNPE Vectan SP 10]*
<<locked>>
94%
34534
64%
**46
90%
Shooters World Buffalo Rifle
<<locked>>
81%
41916
78%
**88
98%
Vihtavuori N110
<<locked>>
81%
38218
71%
**60
100%
Vihtavuori N120
<<locked>>
81%
23815
44%
**64
97%
[Vihtavuori N130]*
<<locked>>
86%
23163
43%
**28
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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