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Title: ZINC BULLETS??
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MTLWRKR
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(Date Posted:02/06/2005 00:20:27)

Text to be set font_colorText to be made font_sizeHello, First time here, I am a big fan of cast bullets, and .264 bore. In the late 50's, I helped a local gunsmith move his shop. In the process I/we uncoverd some unual cast bullets the were .257 caliber with coppet plating over Zinc! they were cast in lyman pattern (do not recall the mold#)for 117 grain bullet, but they weiged 60 grains! I loaded some in a 25/20 M92(had load single as too long to feed) and if you could recover them thew were un damaged except for rifling, shot several through 6/8"scrub oak, that my 44 mag ruger would not. They were in green box(no not sierra), I think Colorado Bullet or similar. Anyone out remember them?

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The more help one has in his garden, the less it belongs to him

Buckshot2
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(Date Posted:02/06/2005 08:00:15)

Metlwrkr, Welcome to the board. It is very possible that those may have been home crafted and offered for sale. Not by any large bullet supply outfit. I have an old Shooter's Bible with an article on casting and shooting Zink and Kirksite boolits. They don't list a source for ready made Zinc slugs either.

.................Buckshot

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Father Grand Caster watches over you my brother. Go now and pour yourself a hot one. May the Sacred Silver Stream be with you always

Proud former Shooters.Com Cast Bullet alumnus and plank owner

marlinlover
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(Date Posted:02/07/2005 03:03:14)

I've got these big power tower insulators that have big balls of what seems to be cast zinc between each ceramic dish.

Who wants to do an experimental cast? I'll send one out.
greg5278
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(Date Posted:02/10/2005 17:33:06)

I don't know where your Zinc bullets came from,  but I have tried them in my shotgun. I used Zinc sheeting to melt down, I originally bought it from a gut as tin, but the melting point was too high. I cast it in my 775 grain mold, it weighed 490 grains. I sized it, and fired it with a reduced charge. It went through 3/8" HR steel plate at 50YDS. My Heat treated slugs only dent it. I researched the alloys, and spoke with several foundries about it. They said that Zamak alloy #3 would be the best for this application, it's melting point is 718 F. I have not ordered any yet, because the minimum order is 25# at 2 plus dollars per #. It must be cast in an undersize mold, or it will be too large for the bore. Greg
starmetal
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(Date Posted:02/10/2005 18:50:03)

I read an article one time where the Army said it used zinc bullets to test armor plate. They said at 3000 fps and over it didn't matter alot what the bullet was made of. I think it does, but at any rate I've heard others say that the Army did at one time test armor plate that way.

Did you read my post where I said that old carburators were made of zinc?

Joe

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Lloyd Smale
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(Date Posted:03/24/2005 00:52:34)

ive recently got ahold of about 50lbs of zinc ingots. I casted a rcbs 300swcgc out of them and they weighted 195 grains. I didnt cast all that bad but had to be run real hot. I did goof up and contaminated a batch of lead alloy with just a little of the zinc and it made it real tough to cast good bullets. I got a little nervous and stuck it in the back of the garage. Someday im going to play with it and see what kind of long distance shooting can be done with one of them. Is there anyone here whos shot them that can comment on barrel fouling with them I would guess that if they "zinced up" the barrel it would be a bugger to clean.
waksupi
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(Date Posted:03/24/2005 06:12:52)

I don't believe there would be much fouling. As a side note, zinc bullets are good for armour piercing, but due to light weight, longer range accuracy drops off fast.

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floodgate1
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(Date Posted:03/24/2005 06:58:19)

waksupi, et al.:

Jim Harvey, who designed the zinc-washer base "Prot-X-Bore" bullets mentioned a couple of weeks ago (see Jim Foral's lead article in the otherwise undistinguished 18th Edition "Handloader's Digest") claimed that as zinc is "antagonistic" to lead, a wash of zinc in the bore laid down by a few of his bullets would prevent future leading; the jury is still out on that.  But back in the '30's and '40's of the last century (GEEZ!,  that makes me feel OLD!!) when the lightweight, high-velocity zinc-based "Kirksite" alloy bullets were being experimented with, they found that you had to "keep kosher" and not mix your lead and zinc pots, dippers or moulds, or the traces of zinc would prevent free casting in lead, while a trace of lead in the zinc would cause the Kirksite bullets to crumble into a pile of crystals (due to intergranular corrosion, Joe?) after a few months.

floodgate1
eblerinnv
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(Date Posted:03/24/2005 16:07:03)

About twenty years ago some friends and meself experimented accidentaly with zinc in cast boolits.  We made a melt of 300 lbs of various scrap leads and tossed in a sixty pound weight of the type used by the water measuring guys when measuring the depth of flowing rivers and such.  We were later told it was 40 percent zinc.  I still use the same molds and pot so we didn't do too much damage there.

The boolits were a little lighter than normal and shot OK, don't remember anything special about the shooting.  The only interesting thing was that when we twisted them apart with pliers, they had a strange grainy texture revealed, and twisted slowly until giving and parting suddenly.  These boolits (311284) were also quite a bit harder than 50/50 linotype/wheelweights we were then shooting.  Shot length wise into aspen firewood chunks they would penetrate completely through 12" lengths and the other boolits did not.
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