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Load data for .38 Special + .355 | 124gr | LOS FMJ RN

Recommended Powder(s): ReloadSwiss RS 20, Somchem MS200

.38 Special + .355 | 124gr | LOS FMJ RN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.355 | 124gr | LOS FMJ RN
Manufacturer SKU:
3-355-FMJ-124RN
Bullet Weight:
124gr | 8.0g
Bullet Diameter:
0.355" | 9.02mm
Bullet Length:
0.611" | 15.5mm
Caliber:
.38 Special load data
Case Length (l3):
1.145" | 29.1mm
Cartridge Length (C.O.L.):
1.324" | 33.6mm
Seated Depth:
0.432" | 11.0mm
Shank Seated Depth:
0.432" | 11.0mm
Case Capacity:
23.1 Grains of Water | 1.50 cm³
Primer Size:
Small Pistol (SP)
Max. allowed Pressure:
21756 psi | 1500 bar
LID:
LID_B10816_C585
Last updated:
2025-02-02

Load data for 36 loads in caliber .38 Special with .355 | 124gr | LOS FMJ RN bullet and 18 powders such as ReloadSwiss RS 20, Somchem MS200. 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 AP 100]*
<<locked>>
81%
18057
83%
**83
83%
Accurate Solo 1250
<<locked>>
66%
18956
87%
**56
100%
[Alliant POWER PISTOL]*
<<locked>>
69%
19131
88%
**42
83%
Alliant UNIQUE
<<locked>>
65%
18420
85%
**86
98%
Hodgdon TrailBoss
<<locked>>
93%
11342
52%
**7
100%
Maxam CSB 1
<<locked>>
67%
18260
84%
**37
100%
Maxam CSB 2
<<locked>>
65%
17695
81%
**53
100%
ReloadSwiss RS 14
<<locked>>
91%
10008
46%
**0
99%
ReloadSwiss RS 20 👍
<<locked>>
69%
18217
84%
**06
99%
Rottweil P 806
<<locked>>
83%
19058
88%
**24
91%
SNPE Vectan A0
<<locked>>
66%
17927
82%
**33
97%
SNPE Vectan BA7 1/2
<<locked>>
72%
17999
83%
**66
90%
Somchem MS200 👍
<<locked>>
65%
19363
89%
**79
99%
Vihtavuori 3N37
<<locked>>
69%
18188
84%
**99
91%
Vihtavuori N32C Tin Star
<<locked>>
82%
19261
89%
**1
100%
Vihtavuori N330
<<locked>>
65%
19551
90%
**96
100%
Vihtavuori N340
<<locked>>
66%
18739
86%
**76
98%
Vihtavuori N350
<<locked>>
73%
18681
86%
**12
92%

Max Load - Barrel Length: 5.50''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AP 100]*
<<locked>>
77%
16346
75%
**40
81%
Accurate Solo 1250
<<locked>>
61%
16563
76%
**07
100%
[Alliant POWER PISTOL]*
<<locked>>
65%
17260
79%
**93
81%
Alliant UNIQUE
<<locked>>
61%
16375
75%
**37
96%
Hodgdon TrailBoss
<<locked>>
69%
7194
33%
**6
99%
Maxam CSB 1
<<locked>>
62%
15983
73%
**1
100%
Maxam CSB 2
<<locked>>
60%
15432
71%
**04
100%
ReloadSwiss RS 14
<<locked>>
67%
6541
30%
**9
95%
ReloadSwiss RS 20
<<locked>>
61%
14344
66%
**07
97%
[Rottweil P 806]*
<<locked>>
69%
11980
55%
**24
81%
SNPE Vectan A0
<<locked>>
62%
15882
73%
**4
95%
[SNPE Vectan BA7 1/2]*
<<locked>>
61%
13024
60%
**8
84%
Somchem MS200
<<locked>>
60%
17100
79%
**27
97%
[Vihtavuori 3N37]*
<<locked>>
62%
14547
67%
**07
87%
Vihtavuori N32C Tin Star
<<locked>>
60%
11211
52%
**7
100%
Vihtavuori N330
<<locked>>
61%
17071
78%
**50
100%
Vihtavuori N340
<<locked>>
62%
16549
76%
**24
97%
[Vihtavuori N350]*
<<locked>>
62%
13227
61%
**5
86%

Start Load - Barrel Length: 5.50''

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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