Bumping UP a cast bullet

[fiver]

it's good for sealing the end panels on the green house too.
that keeps excess moisture out of the channels in the panels.

 

[462]

I gave away more of the tape than I've used. Thought of beagling the 311284U, but decided to lap it, instead, and glad I did, thinking beagling would have made the out-of-roundness more out-of-round.

 

[popper]

Just went through this in 300 BO. Normally shoot 3085 in tight chamber carbine. BUT other 2 will take 310 easy. So how do you find fit? I slugged the 30/30 years ago, never chamber cast. I PC and it is easy. Remove your barrel. Use a fired case from the PX4, your chamber is a couple thous. larger. A 357 bullet will probably fall in. Seat an unsized PC bullet a tad long, Tap it into the chamber. Tap back out with a wood or brass rod. Look for marks on the PC where the bore/chamber scrapes. If the case won't chamber, bullet is too big. Roll size it. I use 2 10# barball weights, roll the bullet in between.
What I describe is really just a 'plunk' test and you should do it on all your loaded ammo! Just start big. Simple and cheap.
PC with ~50 and ~teaspoon of powder in #5 plastic bowl, thicker the wall the better. Sometimes I wear cotton gloves, swirl a bunch - builds up the static and up/down to 'puff' the powder. Low humidity helps a bunch - moisture absorbs the static. A little technical here but you get static from friction of the powder/bullet on the tub wall which is an insulator. Thicker wall, more insulation! After coating, knock off excess - I haven't done the dump method yet. Keep stored PC dry.

 

[abj]

Glassparman, You didn't say what your alloy was and like Fiver said it might grow a little depending on the alloy. I would shoot the ones you have first. If they turn out to lead the barrel or chamber area then start looking for solutions.
The reason I am honing in on the alloy is, I have several 9mm molds from different makers and the only way I can get one to throw that small is use pure lead. Most of my 9mm molds throw .357/.358 in a 2% tin and 4% antimony alloy and reach full diameter in 8/10 days.
Tony

 

[glassparman]

I just cast some last night with COWW. I'll let them set a day or so and see what size they are.

Mike

 

[Ben]

I think I would lap that mould to the desired size.

Yes, Lap ! !

 

[glassparman]

Well, they drop at .356. Running them through the .357 sizer just makes them look nice and adds lube. I could try a different alloy.

The grooves slugged at .357 but I guess it's time to break out the Cerrosafe and do a chamber cast just for fun to see what the throat is.

Mike