Harvey Protxbore/429507 &a 357514???

[Willyp]

How do you cast with these molds? What does "SFM" mean,on the box??? What type of bullet comes from these ?

[BCall]

The Prot-X Bore molds cast with a zinc washer you have to put in the base. Kind of like a built in gas check. I cast some here-
http://castboolits.gunloads.com/showthread.php?t=122625

SFM is "Shoot From Mold" according to an old Handloaders digest I have. Some of the Lyman molds made for Harvey apparently needed to be sized before shooting. He also had some H&G molds that were "SFM" marked. Meaning you could shoot them straight from the mold with no sizing.

[lotech]

This can get complicated; boxes were marked Protxbore but they may have contained a Protxbore mould that required a zinc washer inserted in a groove in the mould before you pour the alloy OR the mould may have been for a "Jugular Jacketed " bullet. This was only a core, not a complete bullet. The core was inserted into a jacket and the two were swaged together. "SFM" means "shoot from the mould"; allegedly no sizing necessary, but that's not always true. The process is a lot of trouble and often of questionable worth, but if all dimensions are just right, you may assemble some pretty accurate loads.

I'm unfamiliar with your numbers, but I'll guess the smaller one is a core mould and the .44 is a Protxbore. A few people still use these and there are probably some of them on this forum who know a lot more about it than I do. Good luck.

[lotech]

Just remembered... there's a very general article about the Harvey stuff in HANDLOADER magazine, June, 2008, if you can find one.

[Willyp]

The 44 mold,has a small pour hole,so it must take the zinc washer and the 357 has a cone shaped tail end. I did find a mess of copper cups[357] with it.
This things are of no use to me. Ever wonder why you buy stuff that you don't know what it is?????????

[Willyp]

Sorry i looked at the 357 wrong ,it must take the zinc washer! I am not much of a caster.

[deltaenterprizes]

We all start at the beginning! Enjoy the trip.

[BWelch47]

Harvey boolits were popular during the 40's and 50's for target competitions. In 2005 I posted a comment on blog regarding Harvey boolits. BCall, I enjoyed reading the blog you referred to. The zinc washers allowed the lead boolits to be used w/o lubricant. A friend, that I last saw in 1975 and who is deseased, had a Harvey mould for the 45ACP. We cast some boolits and loaded with Bullseye, shot targets with good results.