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Welp my new bullet works great without doing anything to the throat. I've had to change out the recoil spring and monkey with the gas adjustment to get it to run just right, but now it is almost...

And the winner is....44man.

Yup it was all the junk that had accumulated in my pot over the years that caused the problem. Now getting great flow and casting beautiful boolits.
Thanks

Yea I'm 99% sure it was a flow problem. I'll find out with my next casting session.

Most of mine came out looking like the ones on the right.

Well it was like 5-6 years of accumulation. I'll make sure to clean the pot more often. Probably got more than half a cup of that stuff out of there.

Well I cleaned out my pot and yes, there was tons of that brown crud in there. The hole was pretty well plugged too. Got that all cleaned out now, I'm expecting good flow.
What got me thinking...

I haven't cleaned out my pot ever. I bet the bottom is pretty cruddy. I've been running a small allen wrench up the hole to clear it out. I think I'll go ahead and do like you say, dump it and make...

Re designed the above boolit to make it feed better and also make it more suitable for powder coat (don't need grooves).
Tell me what you think. BTW, Accurate Molds is pretty awesome. 194622

Well I've done a little shooting with the 400 grainer and it is not quite up to snuff either. Having issues with the meplat interfering with some part of the barrel extension. I got an improved...

Yea well I guess don't hurt to try it, have done it in the past. At this point though I'm 99 percent sure the issue in this particular situation is the pour rate and and/or getting better with my...

Yea the boolits were definitely getting better towards the end of the session. We'll see how session 3 goes.

I did clean with soap and water very thoroughly before my last session and used a toothbrush. I did not do the heat-cycle thing. I also did not smoke the mold this time (as I have in the past) as I...

where is a good source of tin, and how much should I use. My base material is range scrap.

I'm not sure what the issue is, but I managed to get enough done to go forward with my testing. Initial results are better than with my old boolit as it will now go into battery, and I can get it...

I just finished my session after giving a good clean. I ended up with about half rejects, but enough that are good enough to go ahead and powder coat. It does seem like they did better once the...

How hot is too hot? I poured at 900 degrees and no wiping on the sprue plate also no frosty appearance. Still wrinkly. Had to take a break. Thanks.

So you think a 3 cavity of this size isn't too large? You know, I didn't really degrease the mold hate to say. Looked pretty clean when I got it.

I think I've answered my own question. Another mold for the scrap heap I guess. I don't think I'll be able to keep this one warm enough to NOT get wrinkled boolits. I have run a 6 cavity Lee mold...

The saga continues...
First I had my own mold made. Iron block, single cavity 374 gr .452 cal. Boolits came out great, but the ogive did not work in the throat of my rifle so had to reject that....

Okay decided not to ream the throat out. Decided to abandon my custom boolit and buy a mold off the shelf designed for the 460 S&W
193803

Deals over now. Funny thing, the powder I was looking for did not show up in the search that day. Fortunately I had added it to my cart on a previous day and it was still there. I was able to order...

Today only, Brownells. Just made an order. M4N for free shipping. 70 cent hazmat automatic.

Fingered out the solution. Gonna ream the throat out until the boolit fits.

Okay, having some problems with the AR-10. I have concluded that because of the shape of the boolit, it is jamming against the throat making causing it to not want to go into battery unless I...

Finally got enough stuff together to start testing. My mold came in and I got to work casting some boolits. Came out at 375 grains. Did a powder coat job and loaded them up into some 45 Raptor...