.357 mag 158gr SWC question

[Bastard]

Coating comes into play with velocity

If you leave a lead skid mark from the cylinders forcing cone to the muzzle, it's a paint to clean and remove the lead.

years ago I was on the cast bullet forums and learned the trick... cut up and wrap the pieces of a copper chore-boy around an old brush & run it through and the lead will come right out. what they didn't tell me was to make sure that when you cut it to make sure that you are either doing it outside or over the garbage can as the woven pad will come apart and you will have pieces everywhere

since they come in packs of two I have always used the other one to clean off any build up on the top strap...

[pennstater]

Max load for a 158 gr CAST bullet is 8.0 gr of Unique. Per the Lyman Reloading handbook #43.

Whoa, that is some dated data right there. #43!? OLD data. Use newer info to be safer, as loading data is measured differently nowadays.

MLC

[Caligula36]

Max load for a 158 gr CAST bullet is 8.0 gr of Unique. Per the Lyman Reloading handbook #43.

Sounds legit. Send it!

[Sailormilan2]

Whoa, that is some dated data right there. #43!? OLD data. Use newer info to be safer, as loading data is measured differently nowadays.

MLC

Newer Lyman manuals don't list Unique. I have the 50th Editon and the 4th Cast Bullet, and neither lists Unique for anything over 120 gr.

[Sandspider500]

That old 43-44 Lyman load is probably somewhere in the realm of 46,000 cup, a bit spicy. Those old manuals do still have some useful loads especially for cast bullet rifle. But reloaders should still cross reference with other manuals especially if it doesn't contain pressure data. Now, I don't know if herco powder when heavily compressed slows down it's burn rate, but there's no way I'm stuffing 11.6gr(a load from 44th) under a 160gr bullet in a 357 mag case when Lyman 48th says that 7.5 is 41,000 cup.

[sigstroker]

I found a partial can of Herco in my crap. I don't remember ever using it.

[hambam105]

A 158 grain bullet in a .357? Sounds rather High Tec?