doublegunshop.com - home Forums General Discussion Classic & Custom Single Barreled Sporting Rifles @ doublegunshop.com 577 / 500 load question

I have a newly purchased Martini in 577/500.
Can anyone recommend some BP loads for it?

Thank You, John

its not a 577/450?

Hello mc,
No, not 577/450. It is a sporting Martini in 577-500 #2 Express.

Hello John,

British Sporting Rifle Cartridges have the following listed for this round:- 577/500 No.2. Express.
1.
Black Powder. 130 grains, (Probably Curtis & Harveys Fg)my brackets.
Bullet weight 340 grains, lead, paper patch, round nose, copper tubed. Overall length 3.384". Case length 2.840"

2.
Black Powder 130 grains,
Bullet weight 380 grains, lead, paper patch, round nose. Same case and o/a cartridge lengths.

3.
Black Powder 130 grains,
bullet weight 300 grains, lead, paper patch, round nose, hollow point. Same case and o/a cartridge lengths.

Nitro loadings are given but using powders that haven't been made for fifty or more years.

With any old rifle, I'd suggest you stick to BP, you can't overload a cartridge with that.

Harry

Hello Harry,
Thank you very much. That will be a very good starting point.
I will see if I can make up a few to try.

Regards, John

John when I loaded for mine I used the loads in Cartridges of the World. Did fine with them.

Mike,
Thank you, I will check them also.

Best, John