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+--- Thread: Bullet weight ???? (/thread-679.html)
RE: Bullet weight ???? - Kurt - 10-21-2013
You can really close the variances when casting.
I cast with a very tight sprue plate and I have no problem getting the base or nose whatever the mould be to fill properly. I use a .100" hole for my sprue plate. The voids are usually the slag getting into the cavity especially with very large holes in the sprue plate.
I take a rag that has lube on it and wipe the spigot on the ladle this keeps the scum that is floating on top of the alloy from sticking on it that gets poured into the cavity.
I can tell just by looking at the sprue puddle if that bullet is light or right on by the way the sprue shrinks as it cools.
RE: Bullet weight ???? - MES - 10-21-2013
You all have voiced some interesting opinions and helpful tips . That's what I was looking for. It was a very good discussion. Thanks Mark
RE: Bullet weight ???? - Bullshot - 10-27-2014
What's in the pot counts a lot.
I use range melt and get a lot more rejects than when using the pure alloy from Rotometals.
RE: Bullet weight ???? - Old Jim - 10-27-2014
(10-21-2013, 08:35 PM)Kurt Wrote: I can tell just by looking at the sprue puddle if that bullet is light or right on by the way the sprue shrinks as it cools.
That is more right-on than some folks think. If you do your pouring in a consistent manner, your cast-bullets won't vary 0.5 grains.
BTDT