65mm paper cased reloads, help please

[coneyhunter]

Hello all, i have been given some 65mm paper hulls , pre primed and am wanting to load them with a 30 gram lead load of no 6.

 

I will be using a fiber wad and i beleive the primers inside the hulls are either Cheddite or Fiocchi.

 

i usually use red dot powder but have only ever loaded with plastic hulls.

 

what charge of powder should i use for the above load?

 

many thanks

[Underdog]

All I know is,,,,is that paper shells and fiber wads need generally a little more powder than plastic and plastic wads.

 

Red dot pressures rise quick so be aware! I would try a middle charge weight after cross referencing any available data.

 

U.

[coneyhunter]

All I know is,,,,is that paper shells and fiber wads need generally a little more powder than plastic and plastic wads.

 

Red dot pressures rise quick so be aware! I would try a middle charge weight after cross referencing any available data.

 

U.

 

Many thanks, ive been using 16 grains or RD in the plastic hulls so may try 14, tried ll of my data and sadly cant seem to find anything

[deershooter]

Felt wads normally need about 10% more powder not less

 

Deershooter

[longgun]

According to old recipes, add %5 powder for plastic to paper cartridge transition. Again add %5 powder for plastic to paper(felt, fiber, cork) wads. Or send to a ballistic laboratory and learn pressure and velocity values. I never fire a cartridge without lab tests

[Floating Chamber]

Unlike the old quality paper tube shells of yesteryear, these modern used cases have a habit of separating from the head.