455 Webley mark 2 loading info

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Looking for light loads . 13000 cup or black powder pressures with titegroup and or trail boss with 255 grain cast bullets.
Would also be interested in mark1 loads
 
Looking for light loads . 13000 cup or black powder pressures with titegroup and or trail boss with 255 grain cast bullets.
Would also be interested in mark1 loads
Can't help with titegroup, honestly I wouldn't use it in an antique but that's just my opinion

For trail boss, do exactly what the manufacture recommends, fill a case to the level a seated bullet will sit, weigh out that charge and that's your maximim. minus 10% and you're good to go
 
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I was using 4gr trailboss in a .45 acp case with 255/65 gr. Recoil was around half of standard .45 acp ball. not sure of OAL but i could check, i was crimping in the provided groove.

4.2-5 gr trailboss is prob the max with 3.5 gr being light. Thought ive tested please do additional research and take with a grain of salt.
 
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