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Load data for .256 Win. Mag. + .257 | 60gr | Hornady InterLock FP

Recommended Powder(s):

.256 Win. Mag. + .257 | 60gr | Hornady InterLock FP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.257 | 60gr | Hornady InterLock FP
Manufacturer SKU:
2510
Bullet Weight:
60gr | 3.9g
Bullet Diameter:
0.257" | 6.53mm
Bullet Length:
<<locked>>
Caliber:
.256 Win. Mag. load data
Case Length (l3):
1.281" | 32.5mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
22.0 Grains of Water | 1.43 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
50763 psi | 3500 bar
LID:
LID_B2561_C233
Last updated:
2026-01-21

Load data for 30 loads in caliber .256 Win. Mag. with .257 | 60gr | Hornady InterLock FP bullet and 15 powder(s). 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>>
95%
45484
90%
**77
98%
[Accurate 5744]*
<<locked>>
92%
44933
89%
**53
92%
Accurate No. 11 FS
<<locked>>
92%
44527
88%
**40
96%
Hodgdon LilGun
<<locked>>
89%
44527
88%
**48
100%
Hodgdon TrailBoss
<<locked>>
96%
23670
47%
**77
100%
[IMR 4227]*
<<locked>>
97%
37217
73%
**92
92%
[Lovex D060]*
<<locked>>
95%
44933
89%
**53
92%
[Lovex D063]*
<<locked>>
91%
45484
90%
**36
92%
Lovex S040
<<locked>>
87%
44918
88%
**00
100%
Lovex S053
<<locked>>
97%
34432
68%
**79
96%
ReloadSwiss RS 14
<<locked>>
97%
22887
45%
**19
100%
SNPE Vectan BA6 1/2
<<locked>>
96%
31560
62%
**51
100%
[Shooters World Blackout]*
<<locked>>
91%
45484
90%
**36
92%
[Shooters World Buffalo Rifle]*
<<locked>>
95%
44933
89%
**53
92%
Vihtavuori N110
<<locked>>
96%
40306
79%
**94
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2205]*
<<locked>>
81%
30066
59%
**65
94%
[Accurate 5744]*
<<locked>>
88%
39349
78%
**38
90%
[Accurate No. 11 FS]*
<<locked>>
81%
30893
61%
**61
91%
Hodgdon LilGun
<<locked>>
81%
32851
65%
**41
100%
Hodgdon TrailBoss
<<locked>>
94%
22727
45%
**57
100%
[IMR 4227]*
<<locked>>
93%
33286
66%
**07
90%
[Lovex D060]*
<<locked>>
90%
39349
78%
**38
90%
[Lovex D063]*
<<locked>>
87%
39407
78%
**21
90%
Lovex S040
<<locked>>
81%
36390
72%
**49
99%
[Lovex S053]*
<<locked>>
84%
23772
47%
**00
90%
ReloadSwiss RS 14
<<locked>>
89%
20334
40%
**50
100%
SNPE Vectan BA6 1/2
<<locked>>
81%
21234
42%
**75
97%
[Shooters World Blackout]*
<<locked>>
87%
39407
78%
**21
90%
[Shooters World Buffalo Rifle]*
<<locked>>
90%
39349
78%
**38
90%
Vihtavuori N110
<<locked>>
81%
25396
50%
**62
97%

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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