Smokeless load for 450 atoms/476 Enfield

[y2k]

Looking for a smokeless load, preferably bull’s-eye powder is that’s what I use for 45 ACP for the 450 Adams/476 Enfield revolvers I know they’re two different caliber but I have access to each revolver

 

[jethunter]

Looking for a smokeless load, preferably bull’s-eye powder is that’s what I use for 45 ACP for the 450 Adams/476 Enfield revolvers I know they’re two different caliber but I have access to each revolver

What brass are you using for each cartridge?

 

[y2k]

455 brass

 

[jethunter]

455 brass

I assume that is 455 Mkll brass. You can use regular 455 webley load data with that brass in 476. I have used 3 gr bullseye with a 250gr soft lead bullet with starline 455 MKll brass, in both 476 and 455 webley. I don't have any 450 Adam's loads using 455 brass.

 

[y2k]

Later production Adams revolvers will chamber the 455 cartridge

 

[jethunter]

Later production Adams revolvers will chamber the 455 cartridge

Some 450 revolvers do chamber 455, yes.
And as i said, I don't have any data for you for that.

 

[y2k]

I was thinking about 2.8 grains of bull’s-eye

 

[y2k]

With a 230 grain lead 452 diameter bullet

 

[y2k]

Should a guy use a cardboard spacer between powder and bullet that low of a charge there’s a lot of empty space in the casing

 

[jethunter]

Should a guy use a cardboard spacer between powder and bullet that low of a charge there’s a lot of empty space in the casing

Ive never tried that with bullseye, don't know if that would make it better or worse. It's a small charge for that case. Take something with you to the range to knock bullets out if they stick in the bore.

If it were me, I'd use a lighter bullet and trim the brass down some.