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View Full Version : Found a strange mold today, marked "JEM", made of brass. Ever heard of JEM?



hornady308
09-17-2013, 11:27 PM
Picked up a 44 cal brass mold today that is marked JEM. I'm not familiar with this company and was wondering if anyone else has seen a similar mold. It came from a fellow who did a lot of casting in the 1960's, 70's and 80's.

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Artful
09-18-2013, 12:32 AM
I remember hearing of them back in the day - was mainly for singleshot schuetzen rifle shooters - If I remember correctly

btroj
09-18-2013, 07:23 AM
Might belong to one of the wonderful spellers here. It was a great casting mould and he wanted to remind himself he had a real "GEM".

I love sarcasm in the morning.

Thumbcocker
09-19-2013, 02:50 PM
Marlin?

Maven
09-19-2013, 03:08 PM
I love sarcasm in the morning." ...btroj

Then you'll appreciate this:

hornady308
09-19-2013, 04:58 PM
Actually, it isn't sarcasm in this case. It is reality. Just do a google search for "jem bullet mold" and see the results for yourself. By the way, there is a company call JEM that makes cake molds. Fantastic....

hornady308
09-19-2013, 05:00 PM
Marlin?

Sounds good! This is just the sort of "theory" I need to maximize resale value should I ever decide to get rid of the mold on ebay.

Chilmonty
09-19-2013, 09:46 PM
That's a Lee Tumble Lube in .44 mag mold. :kidding:

JK, I have no idea what it is. Actually does look like a TL bullet though.

hornady308
09-26-2013, 04:49 PM
Update: I threw a few bullets from this mold today using coww and the bullets came out weighing 350 grains and mic ~ .429. Any idea what cartridge this is for? I guess I could give them a try in my 14" Contender barrel in 44 Mag, but I wouldn't think the twist rate would be adequate.

45-70 Chevroner
09-27-2013, 05:57 AM
It may have been special made for a Marlin 444, and it looks like it might have been an even heavier boolit as it looks like it was cut off on the base and then the little piece of metal was added to seal the base.

Janoosh
09-27-2013, 06:28 AM
I believe Artful is correct. Looking at the mould, one can see it's a nose pour with a plate to insure a straight, smooth base. Perhaps a 44/77 or others for a mid-range cartridge. I don't know who made it.

Artful
09-27-2013, 06:28 PM
It was back in the 70's and I never really got into schuetzen rifle shooting sport (costly stuff even back then. But it does ring a bell in my "way back" part of the brain.

Outpost75
09-27-2013, 06:53 PM
Your mold was made by James E. McLemore, who is in Indiana. He made a faithful copy of the H.M. Pope Automatic Adjustable Mold, which was a self ejector with moveable base plug and nose pour.

jgt
09-27-2013, 09:18 PM
I have a mold made by NEI in the early eighties that cast a Keith style gas checked bullet that is marked 350 grn but with gas check and lube weighs in at a whopping 378grns. It was designed by the Ohio Shooters which was a scheutzen group. It is not much good for a 444 because of the driving band and crimp groove fitting poorly in a Marlin throat. These are shootable in 44 magnums but take up so much room in the cartridge that it leaves little room for powder. I used 680 and 4227 in my Redhawk with mine and it would penetrate a thirty inch log and drive about eighteen inches into a gravel band behind it. It didn't kick much as it was only going about eleven hundred fps. I would keep it if it was mine.