PRIMERS AND PELLETS

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Last Post 28 January 2022

CBA Member

mashburn posted this 20 January 2022

Hello To All,

No, I'm not dead, I'm still kicking and very much the same old coot. My question is: is there anyone out there in cast bullet land that has actually chrono-graphed the velocity of lead pellets powered by primers? My reason for asking is, the friend of mine whose cartridge conversion plate was adopted by Cimmaron Arms for their revolver with percussion cylinder and cartridge conversion cylinder combo's, sent one of his new prototype rifles, a neat little critter, that fires either pellets or cast .22 bullets with a charge of black powder. They asked him to come and visit and he and the owner spent a lot of time firing the little prototype and several other firearms. The final decision from Cimmaron was, we're going to manufacture it. Now they want him to come up with a separate breech block that will fire either .222 or.22 Hornet cases with primers and pellets.

He called me tonight and asked if I had ever chronographed such. I said no, but I can find some people on the forum who have. He's needing this information to get to work on his breech block option. If you have such information, please let me know.

Mashburn

David Cogburn

David a. Cogburn

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Spindrift posted this 20 January 2022

Good to hear from you again, David!

I've shot a little with .22 diabolo air- gun pellets in my .222 rem, powered by primer alone. I found best accuracy with weaker primers.

Win small pistol primer was better than small rifle standard primer. Small rifle magnums gave the worst accuracy.

I never chronied these loads. I can't know for sure if the Magnetospeed will work with these, but I can try to find out in the near future.

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mashburn posted this 22 January 2022

Hello Spindrift,

Thanks for the information that you provided.

Mashburn

David a. Cogburn

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CBA Member

Little Debbie posted this 22 January 2022

Many years ago I turned piece of .22 LR barrel to .340 diameter x 3 inches long and seated it tightly into a a full length sized .338 Winchester Magnum case. I then tapered the end of the barrel so it would chamber freely. I found that pistol primers gave best accuracy at 25 feet. Seating the pellet with a bit of pressure helped too. I assumed this seating pressure expanded the pellet skirt and gave a better seal. I never chronographed the pellets, but I’m guessing it’s no more than 600 fps probably less I got 2-3 inch 5 shot groups at 25 feet. I just transferred the barrel piece to a .338/06 case. With the price and scarcity of primers I haven’t shot it yet. When the weather improves (March or April) I’ll try to chronograph it.

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mashburn posted this 22 January 2022

Hello Little Debbie,

Thanks so much for that info.

Mashburn

David a. Cogburn

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CBA Member

Larry Gibson posted this 22 January 2022

Ruger #3 w/22" barrel 22 Hornet:

RWS Match w/Rem 7 1/2 primer; 367 fps

Beeman Crow magnum w/ Rem 7 1/2 primers and .2 gr Bullseye; 447 fps, w/.4 gr; 588 fps, w/.6 gr; 800 fps, w/.8 gr 942 fps...groups opened up considerably with 1.0 gr.

Still looking for 222 Rem and 223 Rem data with primers [SR and pockets reamed to take #57 shotgun primer]. Can post if I find it.

LMG

Concealment is not cover.........

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Slugflinger posted this 22 January 2022

I'm not sure how much help this will be to you but way on back around 1985 or so, I messed around with this concept a bit. At the time, I lived in a house in the country that was a hundred or so yards from the barn of a small dairy farm that closed up. After it had been closed for a few weeks, I began to notice that I had some rats stealing dog food from my beagle's bowl.

Not having an air rifle at the time, I decided to make up some pellet loads for my 10" Contender 22 Hornet barrel. The pellets were loaded backwards for fear of shearing the pellet skirt off leaving a bore obstruction. These were loaded with about .9 grains (9/10's of a grain) of Unique powder dispensed with a home made dipper using a case from a fired 22 CB cap. At the time, I didn't have a chronograph, but the loads were pretty quiet, and stopped rats in their tracks. They also didn't exit.

A couple of years ago, I finally decided to try to reproduce these loads and run them over my chronograph. Using several brands and types of pellets, they averaged from 580 fps for the slowest type, to 682 fps for the quickest. These are averages for five shots, with the crono at 15 feet.

I shot for groups at 10 yards at the same time, and some loads would put them into a ragged hole at this distance. They did however, show instability and key holed when tried at 15 yards.

These loads were very dirty, and definitely leaded the bore. A dry bore brush run through every shot or two took care of this problem.

Think! It's not illegal, Yet.

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Ken Campbell Iowa posted this 22 January 2022

when i had the flu i made a 20 ft range with paraffine bullets in a primered 222 ... carboard box with a sears catalog for backstop ... 2 inch group ... when i put a spent primer in the nose of the wax it penetrated deep into the sears catalog. ...

oh, today i looked up the CCI website .. their retail on primers is $70 .. so not just your dealer ripping you off ... just Brandon funny money ...

ken

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barra posted this 28 January 2022

I tried it in my hornet with srp and breach seated the pellet after widening the skirt a little.

The primer fouling screwed me up after a few shots so I used a soft lube.

‘That didn’t help

I used a pinch maybe 1 grn bulleye and it cleaned that fouling up .

Too loud for what I wanted and the pellets were zipping around the work shop so I ceased before I learnt a hard lesson in ricochet angles of defection.

Never got around to testing any thing more out of it.

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Larry Gibson posted this 28 January 2022

Yes, the primer fouling is a detriment after only a few shots. When using just primers, I would run a patch wet with WD40 on it through the bore every 3 -5 shots. That did solve the problem. I mostly was using A Ruger #3 and Contender in 22 Hornet and a contender in 223. The bolt guns became a PITA to do that having to remove the bolt, etc. so I quit using those with just the primer loads. As barra also mentions the use of a bit of Bullseye solved the primer residue problem but increased the noise level.

LMG

Concealment is not cover.........

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