Recommended Powder(s): Accurate 1680, Alliant Reloder-7, Lovex D060, ReloadSwiss RS 36, Shooters World Buffalo Rifle
Load Specifications
Load data for 116 loads in caliber .25 WSSM with a .257 | 117gr | Hornady BTSP 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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No data yet
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Use the Personalized Load Calculator to customize loads to your own specific requirements. 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 this criteria at own risk to also 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 AR 2205 | 91% | 88% | 100% | |||
ADI AR 2207 | 95% | 65% | 100% | |||
ADI AR 2219 | 95% | 60% | 94% | |||
Accurate 1680 | 95% | 90% | 99% | |||
Accurate 2015 | 95% | 47% | 95% | |||
Accurate 5744 | 89% | 89% | 100% | |||
Accurate No. 11 FS | 86% | 85% | 100% | |||
Alliant AR-Comp | 97% | 45% | 96% | |||
Alliant Reloder-10x | 95% | 53% | 97% | |||
Alliant Reloder-7 | 97% | 72% | 99% | |||
Baschieri & Pellagri 106 | 97% | 64% | 96% | |||
Hodgdon H322 | 97% | 52% | 92% | |||
Hodgdon H335 | 96% | 60% | 93% | |||
Hodgdon H4198 | 97% | 71% | 96% | |||
IMR 4198 | 96% | 61% | 99% | |||
IMR 4227 | 95% | 82% | 100% | |||
Lovex D060 | 91% | 89% | 100% | |||
Lovex D063 | 86% | 87% | 100% | |||
Lovex S040 | 83% | 87% | 100% | |||
Lovex S053 | 96% | 81% | 100% | |||
Norma 200 | 97% | 63% | 99% | |||
ReloadSwiss RS 36 | 96% | 83% | 100% | |||
SNPE Vectan BA6 1/2 | 95% | 71% | 100% | |||
SNPE Vectan SP 10 | 97% | 61% | 93% | |||
Shooters World Blackout | 86% | 87% | 100% | |||
Shooters World Buffalo Rifle | 91% | 89% | 100% | |||
Vihtavuori N110 | 94% | 90% | 100% | |||
Vihtavuori N120 | 95% | 61% | 100% | |||
Vihtavuori N130 | 95% | 51% | 96% |
Max Load - Barrel Length:
Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
ADI AR 2205 | 81% | 66% | 100% | |||
ADI AR 2207 | 81% | 42% | 98% | |||
ADI AR 2219 | 88% | 47% | 91% | |||
Accurate 1680 | 81% | 55% | 95% | |||
Accurate 2015 | 85% | 35% | 90% | |||
Accurate 5744 | 81% | 71% | 99% | |||
Accurate No. 11 FS | 81% | 71% | 100% | |||
Alliant AR-Comp | 87% | 34% | 91% | |||
Alliant Reloder-10x | 81% | 35% | 92% | |||
Alliant Reloder-7 | 81% | 45% | 96% | |||
Baschieri & Pellagri 106 | 83% | 42% | 90% | |||
Hodgdon H322 | 93% | 46% | 90% | |||
Hodgdon H335 | 91% | 51% | 90% | |||
Hodgdon H4198 | 83% | 47% | 91% | |||
IMR 4198 | 81% | 40% | 94% | |||
IMR 4227 | 81% | 54% | 99% | |||
Lovex D060 | 81% | 67% | 99% | |||
Lovex D063 | 81% | 73% | 100% | |||
Lovex S040 | 81% | 82% | 100% | |||
Lovex S053 | 81% | 53% | 100% | |||
Norma 200 | 81% | 39% | 94% | |||
ReloadSwiss RS 36 | 81% | 52% | 99% | |||
SNPE Vectan BA6 1/2 | 81% | 49% | 100% | |||
SNPE Vectan SP 10 | 90% | 49% | 90% | |||
Shooters World Blackout | 81% | 73% | 100% | |||
Shooters World Buffalo Rifle | 81% | 67% | 99% | |||
Vihtavuori N110 | 80% | 61% | 100% | |||
Vihtavuori N120 | 81% | 40% | 99% | |||
Vihtavuori N130 | 81% | 34% | 91% |
Start Load - Barrel Length:
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.