Subsonic Load Specifications
>> Use the Personalized Load Calculator further below to adjust input parameters.
Load data for 90 subsonic loads in caliber .375 SOCOM with a .377 | 255gr | AlaskaBulletWorks Kodiak PP SPFN bullet based on the specified parameters like bullet length, cartridge length, and case capacity as shown 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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a load must fulfill certain criteria to be listed below - see here.
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our load data might deviate from other sources - see most common reasons here.
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all loads are based on the bullet and case dimensions shown further below - see here what to do if you deviate.
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you can set your own specifications in the "Personalized Load Calculator"
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Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric)
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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.
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 | 29% | 33% | 100% | |||
ADI APS 350 | 38% | 60% | 100% | |||
ADI APS 450 | 37% | 57% | 100% | |||
ADI AS 30 | 35% | 55% | 100% | |||
ADI AS 50N | 31% | 52% | 100% | |||
Accurate 4100 | 26% | 26% | 91% | |||
Accurate No. 2 | 27% | 40% | 100% | |||
Accurate Solo 1000 | 32% | 51% | 100% | |||
Accurate Solo 1250 | 31% | 45% | 100% | |||
Alliant BLUE DOT | 26% | 28% | 99% | |||
Alliant UNIQUE | 27% | 42% | 100% | |||
Baschieri & Pellagri 100 | 33% | 52% | 100% | |||
Hodgdon Clays | 37% | 59% | 100% | |||
Hodgdon LilGun | 26% | 23% | 93% | |||
Hodgdon Universal | 27% | 46% | 100% | |||
Hodgdon CFE Pistol | 29% | 47% | 100% | |||
Hodgdon TrailBoss | 71% | 57% | 100% | |||
Lovex S011 | 27% | 48% | 100% | |||
Lovex S020 | 27% | 44% | 100% | |||
Lovex S040 | 28% | 27% | 94% | |||
Maxam CSB 1 | 32% | 46% | 100% | |||
Maxam CSB 2 | 31% | 50% | 100% | |||
Maxam CSB 3 | 32% | 51% | 100% | |||
Maxam CSB 4 | 32% | 53% | 100% | |||
Maxam CSB 5 | 33% | 56% | 100% | |||
ReloadSwiss RS 12 | 27% | 52% | 100% | |||
ReloadSwiss RS 14 | 68% | 53% | 100% | |||
ReloadSwiss RS 20 | 28% | 42% | 100% | |||
Rottweil P 801 | 27% | 53% | 100% | |||
SNPE Vectan A0 | 31% | 44% | 100% | |||
SNPE Vectan BA 9 | 29% | 45% | 100% | |||
SNPE Vectan BA10 | 34% | 56% | 100% | |||
SNPE Vectan BA6 1/2 | 34% | 25% | 96% | |||
SNPE Vectan BA7 1/2 | 29% | 37% | 100% | |||
SNPE Vectan BA9 1/2 | 29% | 47% | 100% | |||
Somchem MS200 | 28% | 42% | 100% | |||
Vihtavuori 3N38 | 26% | 30% | 100% | |||
Vihtavuori N105 | 26% | 28% | 100% | |||
Vihtavuori N110 | 30% | 25% | 94% | |||
Vihtavuori N310 | 30% | 59% | 100% | |||
Vihtavuori N320 | 31% | 53% | 100% | |||
Vihtavuori N32C Tin Star | 49% | 61% | 100% | |||
Vihtavuori N330 | 28% | 46% | 100% | |||
Vihtavuori N340 | 28% | 42% | 100% | |||
Vihtavuori N350 | 27% | 36% | 100% |
Max Load - Barrel Length:
Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
ADI AP 100 | 25% | 27% | 100% | |||
ADI APS 350 | 25% | 36% | 100% | |||
ADI APS 450 | 25% | 35% | 100% | |||
ADI AS 30 | 25% | 37% | 100% | |||
ADI AS 50N | 25% | 39% | 100% | |||
Accurate 4100 | 26% | 26% | 90% | |||
Accurate No. 2 | 25% | 36% | 100% | |||
Accurate Solo 1000 | 25% | 36% | 100% | |||
Accurate Solo 1250 | 25% | 35% | 100% | |||
Alliant BLUE DOT | 25% | 27% | 98% | |||
Alliant UNIQUE | 25% | 37% | 100% | |||
Baschieri & Pellagri 100 | 25% | 36% | 100% | |||
Hodgdon Clays | 25% | 37% | 100% | |||
Hodgdon LilGun | 25% | 22% | 92% | |||
Hodgdon Universal | 25% | 41% | 100% | |||
Hodgdon CFE Pistol | 25% | 38% | 100% | |||
Hodgdon TrailBoss | 25% | 17% | 100% | |||
Lovex S011 | 25% | 44% | 100% | |||
Lovex S020 | 25% | 40% | 100% | |||
Lovex S040 | 25% | 24% | 92% | |||
Maxam CSB 1 | 25% | 34% | 100% | |||
Maxam CSB 2 | 25% | 38% | 100% | |||
Maxam CSB 3 | 25% | 37% | 100% | |||
Maxam CSB 4 | 25% | 38% | 100% | |||
Maxam CSB 5 | 25% | 41% | 100% | |||
ReloadSwiss RS 12 | 25% | 47% | 100% | |||
ReloadSwiss RS 14 | 25% | 17% | 100% | |||
ReloadSwiss RS 20 | 25% | 36% | 100% | |||
Rottweil P 801 | 25% | 49% | 100% | |||
SNPE Vectan A0 | 25% | 34% | 100% | |||
SNPE Vectan BA 9 | 25% | 37% | 100% | |||
SNPE Vectan BA10 | 25% | 39% | 100% | |||
SNPE Vectan BA6 1/2 | 25% | 18% | 91% | |||
SNPE Vectan BA7 1/2 | 25% | 30% | 100% | |||
SNPE Vectan BA9 1/2 | 25% | 38% | 100% | |||
Somchem MS200 | 25% | 36% | 100% | |||
Vihtavuori 3N38 | 25% | 29% | 100% | |||
Vihtavuori N105 | 25% | 27% | 100% | |||
Vihtavuori N110 | 25% | 20% | 90% | |||
Vihtavuori N310 | 25% | 47% | 100% | |||
Vihtavuori N320 | 25% | 41% | 100% | |||
Vihtavuori N32C Tin Star | 25% | 27% | 100% | |||
Vihtavuori N330 | 25% | 39% | 100% | |||
Vihtavuori N340 | 25% | 36% | 100% | |||
Vihtavuori N350 | 25% | 33% | 100% |
Start Load - Barrel Length:
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.