Casting Accurate Mold Problems

As you can see by the picture I have a problem with one cavity of my mold. I need some help on what I can do about it. I have tried heating it up an wiping it down but it has not helped. I am new to casting and I am sure there are some lessons I have to learn. The mold dropped good bullets at first but now I have small indents in one bullet of a 4 cavity mold. I am not sure how to clean a mold and start over.

Last edited by billdean; Yesterday at 10:48 PM. Reason: forgot pictures

Boolit Master Join DateApr 2009LocationiowaPosts213

If it were me I would take it apart and scrub the heck out of it, hot water with dawn does a pretty good job, use a stiff tooth brush, dry it good and maybe use a bic lighter to O so very, very little smoke, get it up to temp and have a ball.

A good heavy scrubbing with rubbing alcohol and a rag or a toothbrush often helps clean out oil or grease that you can't see with the naked eye. I like to follow the alcohol with a detergent like Dawn, as mentioned above, and hot water, and then making sure to dry the mold with a rag before starting again. Sometimes with a multi-cavity mold a particular cavity may be the one that consistently drops the poorly formed bullets in a given session. Sometimes the cause is not a dirty cavity but an improperly heated cavity, and this can be corrected by filling the cavity that is not filling out well first.

By the looks of the bases, if your using a down pour pot, try pressure casting. I have to do that to all my Accurate molds in the 45-70, to get my bases to fill out.

I start out by boiling my molds, any mold, in water with a few drops of Dawn dish soap. I'll let them sit in this water that i brought up to boiling and pulled off the burner for a good 5 min. Scrub with a nylon brush, toothbrush ect ect, rinse and repeat. I boil the water a couple of times and do this to make sure all oils get out of the pours of the mold.

I would look that cavity over with a magnifying glass.
I bet you know exactly which cavity it is because the boolits are hanging up in it.
look for a little rolled over or dinged area right on the two drive bands.

it's all an educated guess,,,, till the trigger is pulled.

the more i find out about shootin boolits, the more it contradicts everything i ever learned about shooting jaxketed.

I would look that cavity over with a magnifying glass.
I bet you know exactly which cavity it is because the boolits are hanging up in it.
look for a little rolled over or dinged area right on the two drive bands.There does seem to be a sliver right at the drive band. What would I do to remove it? All the bullets seem to hang up.

+1 on cleaning it.
I use carbe cleaner, or break cleaner.
Ok now that we got that out ofthe way.
What cal. and what grain?

Beer is proof that God loves us and wants us to be happy!
Ben Franklin

45/70 caliber. The mold is a 4 cavity. 2 are 430 grain and 2 are 350 grain. The 350 grain is giving me the problem.

Fill the 350 grainer first. ... felix

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Abbreviations used in Reloading
Pointed Soft Point "Core Lokt"

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