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Load data for .256 Mag. Gibbs + .257 | 82gr | CutEdge ESP Raptor

Recommended Powder(s):

.256 Mag. Gibbs + .257 | 82gr | CutEdge ESP Raptor

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.257 | 82gr | CutEdge ESP Raptor
Manufacturer SKU:
ESP I80 RAPTOR WT
Bullet Weight:
82gr | 5.3g
Bullet Diameter:
0.257" | 6.53mm
Bullet Length:
<<locked>>
Caliber:
.256 Mag. Gibbs load data
Case Length (l3):
2.173" | 55.2mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
56.0 Grains of Water | 3.64 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
49313 psi | 3400 bar
LID:
LID_B8419_C231
Last updated:
2026-01-20

Load data for 128 loads in caliber .256 Mag. Gibbs with .257 | 82gr | CutEdge ESP Raptor bullet and 64 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 2206H
86%
89%
96%
ADI AR 2208
91%
88%
95%
Accurate 2200
84%
89%
94%
Accurate 2495
86%
89%
100%
Accurate 2520
85%
89%
99%
Accurate 4064
91%
89%
99%
Accurate 4350
97%
79%
93%
Alliant AR-Comp
85%
90%
100%
Alliant Power Pro 2000-MR
88%
90%
94%
Alliant Reloder- TS 15.5
92%
90%
97%
Alliant Reloder-15
89%
89%
95%
Alliant Reloder-16
97%
81%
93%
Alliant Reloder-17
96%
90%
97%
Baschieri & Pellagri 107
86%
89%
95%
Bofors RP3
92%
88%
97%
Hodgdon BL-C2
85%
88%
97%
Hodgdon CFE223
90%
90%
95%
Hodgdon H380
91%
89%
94%
Hodgdon Hybrid 100V
97%
74%
93%
Hodgdon LVR
97%
89%
93%
Hodgdon VARGET
91%
89%
95%
Hodgdon TrailBoss
95%
65%
100%
IMR 3031
89%
88%
100%
IMR 4064
92%
90%
96%
IMR 4895
88%
89%
96%
IMR 8208 XBR
84%
90%
97%
Lovex D073.6
87%
89%
99%
Lovex S060
85%
89%
96%
Lovex S062
90%
89%
97%
Lovex S065
96%
89%
92%
Norma 201
87%
89%
97%
Norma 202
86%
89%
99%
Norma 203B
90%
89%
96%
Norma URP
97%
81%
93%
Ramshot Big Game
90%
89%
96%
Ramshot TAC
84%
90%
93%
Ramshot Wild Boar
84%
88%
96%
ReloadSwiss RS 14
96%
66%
100%
ReloadSwiss RS 52
88%
90%
95%
ReloadSwiss RS 60
94%
90%
99%
ReloadSwiss RS 62
97%
80%
92%
Rottweil R 901
84%
89%
99%
Rottweil R 902
88%
90%
97%
Rottweil R 903
94%
90%
97%
SNPE Vectan SP 11
93%
89%
96%
SNPE Vectan SP 7
85%
89%
94%
SNPE Vectan SP 9
87%
89%
96%
SNPE Vectan Tubal 3000
85%
90%
99%
SNPE Vectan Tubal 5000
91%
88%
100%
Shooters World Long Rifle
96%
89%
92%
Shooters World Match Rifle
87%
89%
99%
Shooters World Precision
90%
89%
97%
Somchem S335
86%
90%
100%
Somchem S341
85%
89%
96%
Somchem S355
93%
89%
97%
Somchem S365
96%
71%
95%
Vihtavuori N133
87%
89%
100%
Vihtavuori N135
95%
89%
100%
Vihtavuori N140
88%
89%
99%
Vihtavuori N150
96%
83%
97%
Vihtavuori N160
97%
89%
94%
Vihtavuori N540
88%
88%
99%
Vihtavuori N550
96%
89%
94%
Winchester 6.5 StaBALL
96%
87%
96%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2206H]*
<<locked>>
81%
37565
76%
**89
94%
[ADI AR 2208]*
<<locked>>
81%
32024
65%
**12
90%
[Accurate 2200]*
<<locked>>
81%
40147
81%
**05
93%
Accurate 2495
<<locked>>
81%
36825
75%
**05
100%
Accurate 2520
<<locked>>
81%
38014
77%
**22
98%
Accurate 4064
<<locked>>
81%
30937
63%
**38
96%
[Accurate 4350]*
<<locked>>
94%
34418
70%
**66
90%
Alliant AR-Comp
<<locked>>
81%
38348
78%
**41
100%
[Alliant Power Pro 2000-MR]*
<<locked>>
82%
35679
72%
**05
90%
[Alliant Reloder- TS 15.5]*
<<locked>>
81%
30661
62%
**18
92%
[Alliant Reloder-15]*
<<locked>>
81%
33388
68%
**84
91%
[Alliant Reloder-16]*
<<locked>>
93%
35969
73%
**89
90%
[Alliant Reloder-17]*
<<locked>>
86%
31966
65%
**97
90%
[Baschieri & Pellagri 107]*
<<locked>>
81%
36825
75%
**79
92%
[Bofors RP3]*
<<locked>>
81%
29936
61%
**05
92%
Hodgdon BL-C2
<<locked>>
81%
38145
77%
**31
96%
[Hodgdon CFE223]*
<<locked>>
83%
34171
69%
**30
90%
[Hodgdon H380]*
<<locked>>
85%
35563
72%
**27
90%
[Hodgdon Hybrid 100V]*
<<locked>>
91%
30400
62%
**99
90%
[Hodgdon LVR]*
<<locked>>
92%
36898
75%
**95
90%
[Hodgdon VARGET]*
<<locked>>
81%
31807
64%
**05
90%
Hodgdon TrailBoss
<<locked>>
81%
25831
52%
**83
100%
IMR 3031
<<locked>>
81%
33315
68%
**40
98%
[IMR 4064]*
<<locked>>
82%
31647
64%
**92
90%
[IMR 4895]*
<<locked>>
81%
34200
69%
**33
92%
IMR 8208 XBR
<<locked>>
81%
39726
81%
**18
96%
Lovex D073.6
<<locked>>
81%
35491
72%
**53
97%
[Lovex S060]*
<<locked>>
81%
38450
78%
**40
94%
[Lovex S062]*
<<locked>>
81%
32851
67%
**48
94%
[Lovex S065]*
<<locked>>
92%
38305
78%
**69
90%
Norma 201
<<locked>>
81%
36709
74%
**40
95%
Norma 202
<<locked>>
81%
36724
74%
**69
98%
[Norma 203B]*
<<locked>>
81%
32677
66%
**81
92%
[Norma URP]*
<<locked>>
93%
35070
71%
**69
90%
[Ramshot Big Game]*
<<locked>>
81%
32430
66%
**77
91%
[Ramshot TAC]*
<<locked>>
81%
39871
81%
**99
91%
[Ramshot Wild Boar]*
<<locked>>
81%
38899
79%
**28
94%
ReloadSwiss RS 14
<<locked>>
81%
25672
52%
**16
100%
[ReloadSwiss RS 52]*
<<locked>>
81%
34418
70%
**82
91%
[ReloadSwiss RS 60]*
<<locked>>
81%
28660
58%
**99
91%
[ReloadSwiss RS 62]*
<<locked>>
94%
36085
73%
**15
90%
Rottweil R 901
<<locked>>
81%
40292
82%
**25
98%
[Rottweil R 902]*
<<locked>>
81%
34679
70%
**81
94%
[Rottweil R 903]*
<<locked>>
82%
28500
58%
**56
90%
[SNPE Vectan SP 11]*
<<locked>>
83%
31691
64%
**54
90%
[SNPE Vectan SP 7]*
<<locked>>
81%
37608
76%
**49
91%
[SNPE Vectan SP 9]*
<<locked>>
81%
36201
73%
**43
93%
SNPE Vectan Tubal 3000
<<locked>>
81%
38740
79%
**30
98%
SNPE Vectan Tubal 5000
<<locked>>
81%
31575
64%
**62
97%
[Shooters World Long Rifle]*
<<locked>>
92%
38305
78%
**69
90%
Shooters World Match Rifle
<<locked>>
81%
35491
72%
**53
97%
[Shooters World Precision]*
<<locked>>
81%
32851
67%
**48
94%
Somchem S335
<<locked>>
81%
38087
77%
**36
99%
[Somchem S341]*
<<locked>>
81%
37521
76%
**66
94%
[Somchem S355]*
<<locked>>
81%
29327
59%
**66
90%
[Somchem S365]*
<<locked>>
90%
27891
57%
**72
90%
Vihtavuori N133
<<locked>>
81%
35940
73%
**84
99%
Vihtavuori N135
<<locked>>
81%
28021
57%
**26
97%
Vihtavuori N140
<<locked>>
81%
34171
69%
**77
97%
[Vihtavuori N150]*
<<locked>>
82%
25933
53%
**35
90%
[Vihtavuori N160]*
<<locked>>
90%
35041
71%
**20
90%
Vihtavuori N540
<<locked>>
81%
34185
69%
**97
97%
[Vihtavuori N550]*
<<locked>>
90%
34969
71%
**69
90%
[Winchester 6.5 StaBALL]*
<<locked>>
86%
30081
61%
**40
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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