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Load data for .255 GS + .257 | 120gr | Remington PSP Core-Lokt

Recommended Powder(s): Alliant Reloder-16, Hodgdon Superperformance, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70

.255 GS + .257 | 120gr | Remington PSP Core-Lokt

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.257 | 120gr | Remington PSP Core-Lokt
Bullet Weight:
120gr | 7.8g
Bullet Diameter:
0.257" | 6.53mm
Bullet Length:
1.140" | 29.0mm
Caliber:
.255 GS load data
Case Length (l3):
2.165" | 55.0mm
Cartridge Length (C.O.L.):
2.811" | 71.4mm
Seated Depth:
0.494" | 12.5mm
Shank Seated Depth:
0.494" | 12.5mm
Case Capacity:
62.0 Grains of Water | 4.03 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B5144_C229
Last updated:
2025-02-02

Load data for 166 loads in caliber .255 GS with .257 | 120gr | Remington PSP Core-Lokt bullet and 83 powders such as Alliant Reloder-16, Hodgdon Superperformance, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70. 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 2208
87%
89%
100%
ADI AR 2209
97%
86%
98%
ADI AR 2213
97%
76%
95%
Accurate 2700
88%
90%
99%
Accurate 3100
97%
76%
99%
Accurate 4064
85%
89%
100%
Accurate 4350
93%
89%
100%
Accurate MAGPRO
97%
74%
93%
Alliant Reloder- TS 15.5
86%
89%
100%
Alliant Reloder-15
84%
89%
100%
Alliant Reloder-16
94%
89%
100%
Alliant Reloder-17
90%
90%
100%
Alliant Reloder-19
97%
85%
98%
Alliant Reloder-22
97%
75%
97%
Alliant Reloder-23
96%
70%
100%
Alliant Reloder-25
97%
62%
98%
Alliant Reloder-26
97%
81%
100%
Hodgdon CFE223
84%
89%
100%
Hodgdon H380
86%
90%
100%
Hodgdon H414
88%
89%
99%
Hodgdon H4350
96%
90%
99%
Hodgdon H4831
96%
71%
93%
Hodgdon H4831 SC
97%
80%
95%
Hodgdon Hybrid 100V
96%
89%
100%
Hodgdon LVR
91%
89%
100%
Hodgdon Superperformance
91%
89%
99%
Hodgdon VARGET
87%
89%
100%
Hodgdon TrailBoss
96%
54%
100%
IMR 3031
84%
89%
100%
IMR 4064
87%
89%
100%
IMR 4166 Enduron
88%
90%
99%
IMR 4350
94%
89%
99%
IMR 4451 Enduron
89%
88%
99%
IMR 4831
97%
86%
100%
IMR 4895
83%
89%
100%
IMR 4955 Enduron
97%
80%
95%
IMR 7828 SSC
97%
79%
96%
Lovex S062
85%
90%
100%
Lovex S065
92%
90%
100%
Lovex S070
93%
89%
99%
Lovex S071
97%
63%
97%
Norma 203B
85%
89%
100%
Norma 204
93%
89%
98%
Norma MRP
96%
79%
98%
Norma URP
93%
89%
100%
Ramshot Big Game
84%
90%
100%
Ramshot Hunter
94%
88%
100%
Ramshot Magnum
97%
72%
97%
ReloadSwiss RS 14
97%
56%
100%
ReloadSwiss RS 50
86%
89%
100%
ReloadSwiss RS 52
84%
89%
100%
ReloadSwiss RS 60
90%
89%
100%
ReloadSwiss RS 62
93%
90%
100%
ReloadSwiss RS 70
93%
89%
100%
ReloadSwiss RS 76
97%
60%
95%
Rottweil R 902
84%
90%
100%
Rottweil R 903
88%
89%
100%
Rottweil R 904
97%
89%
97%
Rottweil R 905
97%
84%
98%
Rottweil R 907
90%
89%
99%
SNPE Vectan SP 11
87%
89%
100%
SNPE Vectan Tubal 5000
87%
89%
100%
SNPE Vectan Tubal 7000
91%
89%
99%
Shooters World Long Rifle
92%
90%
100%
Shooters World Precision
85%
90%
100%
Somchem S355
88%
89%
100%
Somchem S361
96%
88%
96%
Somchem S365
95%
89%
100%
Somchem S385
97%
84%
98%
Vihtavuori N133
84%
89%
100%
Vihtavuori N135
89%
89%
100%
Vihtavuori N140
84%
89%
100%
Vihtavuori N150
93%
88%
100%
Vihtavuori N160
90%
89%
100%
Vihtavuori N165
97%
71%
96%
Vihtavuori N540
84%
89%
100%
Vihtavuori N550
91%
90%
100%
Vihtavuori N555
97%
80%
100%
Vihtavuori N560
96%
75%
95%
Vihtavuori N565
97%
63%
92%
Winchester 6.5 StaBALL
92%
89%
100%
Winchester 760
88%
89%
99%
Winchester StaBALL HD
97%
61%
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
47616
75%
**49
100%
[ADI AR 2209]*
<<locked>>
81%
32750
51%
**84
90%
[ADI AR 2213]*
<<locked>>
88%
36956
58%
**12
90%
Accurate 2700
<<locked>>
81%
45469
71%
**67
97%
[Accurate 3100]*
<<locked>>
81%
28181
44%
**62
92%
Accurate 4064
<<locked>>
81%
50459
79%
**72
100%
Accurate 4350
<<locked>>
81%
38479
60%
**38
98%
[Accurate MAGPRO]*
<<locked>>
93%
41249
65%
**49
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
47863
75%
**66
100%
Alliant Reloder-15
<<locked>>
81%
51387
81%
**41
100%
Alliant Reloder-16
<<locked>>
81%
37521
59%
**48
98%
Alliant Reloder-17
<<locked>>
81%
42438
67%
**79
100%
[Alliant Reloder-19]*
<<locked>>
81%
32648
51%
**87
91%
[Alliant Reloder-22]*
<<locked>>
85%
32184
50%
**16
90%
Alliant Reloder-23
<<locked>>
81%
27311
43%
**88
96%
[Alliant Reloder-25]*
<<locked>>
84%
26542
42%
**56
90%
[Alliant Reloder-26]*
<<locked>>
81%
29182
46%
**93
94%
Hodgdon CFE223
<<locked>>
81%
50488
79%
**61
100%
Hodgdon H380
<<locked>>
81%
49124
77%
**99
100%
Hodgdon H414
<<locked>>
81%
43845
69%
**49
97%
[Hodgdon H4350]*
<<locked>>
81%
36260
57%
**36
94%
[Hodgdon H4831]*
<<locked>>
91%
37681
59%
**95
90%
[Hodgdon H4831 SC]*
<<locked>>
87%
37333
59%
**85
90%
Hodgdon Hybrid 100V
<<locked>>
81%
34867
55%
**39
99%
Hodgdon LVR
<<locked>>
81%
41147
64%
**90
98%
Hodgdon Superperformance
<<locked>>
81%
39436
62%
**87
95%
Hodgdon VARGET
<<locked>>
81%
47210
74%
**43
100%
Hodgdon TrailBoss
<<locked>>
83%
28674
45%
**44
100%
IMR 3031
<<locked>>
81%
52446
82%
**15
100%
IMR 4064
<<locked>>
81%
46644
73%
**23
100%
IMR 4166 Enduron
<<locked>>
81%
45629
71%
**94
98%
IMR 4350
<<locked>>
81%
37985
60%
**75
95%
IMR 4451 Enduron
<<locked>>
81%
44222
69%
**87
97%
IMR 4831
<<locked>>
81%
33344
52%
**00
97%
IMR 4895
<<locked>>
81%
52794
83%
**74
100%
[IMR 4955 Enduron]*
<<locked>>
86%
36390
57%
**33
90%
[IMR 7828 SSC]*
<<locked>>
87%
36709
58%
**25
90%
Lovex S062
<<locked>>
81%
50111
79%
**76
100%
Lovex S065
<<locked>>
81%
41423
65%
**31
98%
Lovex S070
<<locked>>
81%
39639
62%
**15
96%
[Lovex S071]*
<<locked>>
83%
25599
40%
**83
90%
Norma 203B
<<locked>>
81%
50879
80%
**28
100%
[Norma 204]*
<<locked>>
81%
37420
59%
**95
93%
[Norma MRP]*
<<locked>>
81%
29428
46%
**64
90%
Norma URP
<<locked>>
81%
38174
60%
**31
98%
Ramshot Big Game
<<locked>>
81%
51024
80%
**48
100%
Ramshot Hunter
<<locked>>
81%
36796
58%
**15
96%
[Ramshot Magnum]*
<<locked>>
86%
31212
49%
**80
90%
ReloadSwiss RS 14
<<locked>>
81%
28079
44%
**60
100%
ReloadSwiss RS 50
<<locked>>
81%
48950
77%
**79
99%
ReloadSwiss RS 52
<<locked>>
81%
50256
79%
**41
100%
ReloadSwiss RS 60
<<locked>>
81%
41046
64%
**66
100%
ReloadSwiss RS 62
<<locked>>
81%
38247
60%
**61
98%
ReloadSwiss RS 70
<<locked>>
81%
36956
58%
**51
97%
[ReloadSwiss RS 76]*
<<locked>>
91%
31372
49%
**30
90%
Rottweil R 902
<<locked>>
81%
51982
81%
**92
100%
Rottweil R 903
<<locked>>
81%
45542
71%
**26
100%
[Rottweil R 904]*
<<locked>>
82%
34809
55%
**97
90%
[Rottweil R 905]*
<<locked>>
81%
31575
49%
**74
90%
Rottweil R 907
<<locked>>
81%
42598
67%
**51
96%
SNPE Vectan SP 11
<<locked>>
81%
46514
73%
**82
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
46804
73%
**38
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
40480
63%
**75
96%
Shooters World Long Rifle
<<locked>>
81%
41423
65%
**31
98%
Shooters World Precision
<<locked>>
81%
50111
79%
**76
100%
Somchem S355
<<locked>>
81%
45934
72%
**33
100%
[Somchem S361]*
<<locked>>
83%
37130
58%
**30
90%
Somchem S365
<<locked>>
81%
34330
54%
**82
100%
[Somchem S385]*
<<locked>>
81%
32097
50%
**57
92%
Vihtavuori N133
<<locked>>
81%
52388
82%
**10
100%
Vihtavuori N135
<<locked>>
81%
44831
70%
**38
100%
Vihtavuori N140
<<locked>>
81%
51605
81%
**56
100%
Vihtavuori N150
<<locked>>
81%
39465
62%
**75
100%
Vihtavuori N160
<<locked>>
81%
41060
64%
**57
99%
[Vihtavuori N165]*
<<locked>>
84%
29820
47%
**92
90%
Vihtavuori N540
<<locked>>
81%
51677
81%
**82
100%
Vihtavuori N550
<<locked>>
81%
41945
66%
**10
99%
Vihtavuori N555
<<locked>>
81%
29863
47%
**61
96%
[Vihtavuori N560]*
<<locked>>
89%
37173
58%
**54
90%
[Vihtavuori N565]*
<<locked>>
93%
36013
56%
**28
90%
Winchester 6.5 StaBALL
<<locked>>
81%
38682
61%
**98
100%
Winchester 760
<<locked>>
81%
43845
69%
**49
97%
[Winchester StaBALL HD]*
<<locked>>
81%
24120
38%
**46
94%

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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