A real oldie - - IDEAL 308334

[Ben]

This one is a bit of an oddity.
The mould will cast a very good looking bullet.
Near perfectly round at .3124"
Gas check shank is the perfect dimension for a snug fit with all my g/cs.
Catch is.......the nose.
The nose mikes a nice round .298" with my clip on WW's.
I have not shot this one very much because of the " small nose ".
This one would probably be ideal for the 7.5 Swiss rifle.
I think I'll shoot it some more , may be a waste of time , but.......

Ben

Someone ( probably MANY years ago cut some very fine vent lines in the mould. It has zero effect on the ability of the mould to produce a good bullet, free of fins )

 

[fiver]

there was a technique developed back when this mold was new, where the user would squeeze the handles and then only hold on to one handle when filling the mold.
I prefer pressure pouring them.

I agree that it should shoot pretty well in the 7.5 swiss rifles.

 

[Ian]

It's interesting how we all do things differently.

I've never had an issue with those ventless Ideal moulds since I figured out that cutting the stream volume down a little and running the mould super-hot takes care of both air purging and fill-out. I also tend to run the sprue plate a little more loose, which requires cutting the sprues much earlier than most people would to prevent bumps. Also, press down on the plate and swing it with a gloved thumb for good bases, and wait an extra breath to let the alloy "set" before opening the blocks.

To make up the few seconds lost in the slow pour and letting the base set, I hustle the bullet shucking and block closing to start filling the mould again ASAP, and not waiting for the sprue to fully set saves the time of letting the base set after sprue cut. Still keeping at 3-4 pours per minute makes good fillout.

I have to think that the ventless moulds were intended to be used with a ladle, contact-pouring per Ideal's instructions in their old casting pamphlets.

 

[Ben]

I cast with a ladle exclusively.

Ben

 

[KHornet]

I agree with Ian on the old ventless ldeal molds.
Cast them very hot, and you probably will have
little problem.

Paul

 

[Ben]

K Hornet ,

Worked well for me today ! !