Expander for Pumpkin Turner

S

SGJennings

New member
Folks,

I read here somewhere that the K&M Expandrion can be used with a pumpkin turner.

Is that correct?

I ask because I already have 6mm, 7mm and 30 caliber Expandrions.

Greg J.
 
Greg ...

SGJennings said:
Folks,

I read here somewhere that the K&M Expandrion can be used with a pumpkin turner.

Is that correct?

I ask because I already have 6mm, 7mm and 30 caliber Expandrions.

Greg J.
Click to expand...

Maybe you read that here [from another thread]:

Joe Entrekin 12-29-2009 01:47 PM

The K & M Expandiron usually works well with the Pumpkin turner, also.

The Pumpkin has always been considered the best, but I would also consider Sinclair's newest equipment for expanding & turning. They have done a remarkable job of appraising the shortcomings of their equipment & re-designing to get rid of previous problems. I'm not saying K & M isn't good, it does a good job, too. :)
 
Not to hijack your thread, Greg, but I would love to hear from anybody who is using the latest Sinclair turner. It appeared to have a similar eccentric adjustment compared to the Pumpkin. What I liked (the looks of) better about the new Sinclair, is that you can see the cut better. The Pumpkin is sort of a leap of faith so far as this issue goes, but it does such a consistently good job that you build faith pretty quickly. I still would prefer to watch the cut as it happens; it helps me to regulate my feed speed (by hand) to get the best surface finish.

So far as the Expandiron for use with the Pumpkin, it worked great for me. I have the cabide mandrel in the Pumpkin. I have ended up with several K & M mandrels over the years & find some manufacturing tolerance with them, as you would expect with most anything. So let your micrometer & the feel on the turning mandrel guide you. If needed, K & M might select a better fitting mandrel for you, but I've never asked about that. Good luck & let us hear from you after you get some experience with this.
 
No problem, Joe. I was hoping you would add your voice to the thread.

In case anyone is interested, I used the 7mm as an itermediate step in expanding the 6.5 Grendel case up to 30 cal (after the range officer ran me off and I couldn't fire form.) That way it was two steps: .5mm and .62mm, respectively.

Greg J.
 
Greg, you don't need to do that in two steps. Many of the 30BR crowd go all the way from 6mm to 30 in one step. I think it is easier on the brass that way, too.
 
My 30 Expandrion won't go in my 6.5 brass... Untill I get a way to turn it down some on the end, I have to use the intermediate step.
 
K & M has a mandrel that will expand all the way from 6mm up to 30 in 1 step, call them. You could modify the one you have, but the mandrels are pretty inexpensive, so I would recommend just getting the special 6mm-30 cal. mandrel.
 
Thanks, Guys. That's why I hang out here. Well, that and for the chuckles when Goodgrouper and Mike In Co get into it....
 
Joe
I bought the Sinclair a few months ago and had to do some modifications to the unit to fit my personal taste. I removed the click adjustment ( not fine enough increments). Had to decrease the size of the expander mandrel to make the fit more snug (Would not cut necks consistent). Would I buy another Sinclair, No. Now that I have the Sinclair the way I want it, I'll keep it. I do like watching the cut.
 
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I used the K&M expander with Don's neck turner, when I broke down and got Don's expander, it was like going to power steering. Flat cuts down on muscle abuse.
 
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