Smith357
Member
I'm looking for starting load data for .303 blanks to used for tennis balls fired from an Enfield rifle Grenade launcher. I have some modern commercial blanks that are working well launching the ball 100+ yards but they cost 75 cents each. I opened up one of the blanks and it had about 12 grains of a fast burning flake powder. (square greyish green flakes to be exact) I'm guessing a pistol powder was used due to the lack of pressure in a blank case to completely burn a slower rifle powder.
Also what is the best way to seal a blank, the crimped ends on the commercial blanks is blown out and will need to get trimmed off. I'm thinking about some cotton or cardboard wadding and some wax.
Also what is the best way to seal a blank, the crimped ends on the commercial blanks is blown out and will need to get trimmed off. I'm thinking about some cotton or cardboard wadding and some wax.