Kinetic Bullets Puller = KB. Possible?

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steve4102

steve4102

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Is it possible for a inertia/kinetic bullet puller to set of the primer and cause a KB?

I read on another forum that a guy was pulling bullets with his Lyman Inertia puller and the round went off. Possible, or more internet BS??
 
With the collet shell holder that comes with kinetic bullet pullers, I believe the chance is slim and none and slim just left town.

But, some folks will use the shell holder off the press to hold the case and if I remember correctly, there is some issue of possibly setting off a primer when using those.

i could be mistaken but I only use the bullet puller's shell holder just in case.
 
I fail to see how a primer could be hit or detonated with that puller. I suppose that if hit hard enough AND if the primer was squished almost through you could possibly detonate it after the lightning bolt that was as long a shot hit you while hiding in your bunker.:p Seriously I can't see it happening for real???
 
steve, 4/3/12

Yes, a kinetic puller can fire off a primer as I have done it. I had to pull the bullets on several hundred 9mm cartridges and the crimps were pretty tight. So I used a 2" steel bar and hit the plastic kinetic puller on the bar to decrease the number of hits I needed to pull each bullet. This worked fine till about round number 180 when the puller cracked. Not having local access to another puller and not wanting to wait several weeks to mail order a new one I welded up a kinetic puller out of one-half inch metal pipe, made a collet to hold the cartridge in place at one end and put a threaded cap over the cartridge and collet. I left the far end open in case of any unexpected ballistic events. I could whack the 2" steel bar pretty hard and unseat the bullet in two or three whacks. At about cartridge 300 I gave the puller a big whack and then "boom." As I was sitting on a concrete floor with the steel bar and bullet puller between my legs the first thing I did (after unpuckering my sphincters) was check my important manly parts for damage. No blood, a good sign. I found the bullet on the floor behind me. I opened the puller and pulled out the empty case. No primer indentation at all. As near as I can figure the primer was accelerated so fast and then suddenly stopped that the explosive primer components hit the anvil and went off. So I am now back to plastic bullet pullers and hitting hardwood or hard-plastic (like a bowling ball). I was wearing ear and eye protection so no problems there.

So in summary, yes it is possible to fire off a cartridge's primer in a kinetic bullet puller but it takes a lot of force, innovation and possibly stupidity.

best wishes- oldandslow
 
This is baffling with a plastic inertial hammer used normally.
I strike the end grain of a sawn off piece off 4x4 about 6" long. I even mounted a bullet puller holster on the side of the 4x4.

After I got a chrono, I had to pull 300 9mm reloads with FED SPPs- no problems. I even got to only needing ONE well smacked hit.

I don't see how inertia could collapse the primer material into the anvil, even on sensitive FED primers.

Maybe the pipe cap on that rigged hammer screwed itself slowly tighter until there was some contact with the primer???.
 
Seems odd that you could have told after the primer blow out of the pocket. How would you have been able to tell after the primer blow its shape back out then bonced around after coming out of the pocket.
 
Lets calculate.

How many pullers of all brands have been sold over the last 10 years x how many rounds have been broken down per kinetic puller = total number of rounds broken down minus the number of rounds that have gone off = your odds of winning the lottery.:D
 
How would a press shell holder make it any more susceptible to going off? I ditched using the horrible holders that came with the puller a long time ago. I got tired of the cases falling out of them during strikes.


Brought to you by TapaTalk.
 
It doesn't make it more susceptible to going off.

But as I understand it, the three-piece collet that comes with them can rotate in the cap and release the case, and the pressure.

A solid shell holder converts the plastic head into a pipe bomb, if one does go off.

rc
 
I was thinking high primers getting pinched in the shell holder. I could picture the last round primed & left in the shell holder. The case filled & seated then it wont come out of the shell holder so they throw the whole thing in the puller(it is what I would do). Wack wack, wacboom. Bad idea using shell holders.

Shell holder or collet I bet it blows the puller apart but couldn't kill you.
 
When you are dealing with primers why not?

Everyone has had a dud primer, so why is it so hard to believe in overly sensitive primers? I will bet you had them, it is just they went bang in your pistol.

I found pictures of a guy's thumb with a hole in the side. He had been pushing a percussion cap onto a nipple and the cap went off.

If you have Frost's book "Ammunition Making", a certain number of primers are allowed to go off at the "none fire" limit, and they will ship the lot.
 
rcbs instructions indicate a few soft whacks are better than a couple of hard whacks... Perhaps now we know why -- great info, thanks guys!

edfardos

tempted to wear a reloading cup now... Out of kevlar?
 
"Lets calculate -- How many pullers of all brands have been sold over the last 10 years x how many rounds have been broken down per kinetic puller"

Good point but it's much more than that; I've been using kinetic pullers since '65 and they weren't a 'new' thing then.
 
Pullers

I have used the IMPACT OR Kinetic pullers for over 25 years & i haven't had noting to happen but using a shellholder may cause a round t ogo BOOM i read that a fella was doing this instead of using the collets that came with the puller he used a regular shell holder off the press & he said that he was pulling a 243 win round & on the third lick BOOM & his two little boys were standing there with him it takes blunt force to the centerof a primer get it to deploy thats what RCBS told me :cool:
 
Using the lyman puller myself.

Lyman tech explained to me that the housing of the puller is specially designed and created with ABS+ so that even if you hit it backwords on a rock, a .30 cal rifle round would not generate enough pressure to force the bullet itself out of the puller.

Its intentionally designed to vent the cartridge out of the collet if sufficient pressure exists. This is why you use the collet, not a shellholder :)

Lyman myth ? Maybe. Sounds legitsky to me.

I'm sure the collet math holds over to RCBS and any other brand if you believe that. Not sure about the plastic. The plastic in my lyman is significantly thicker than the RCBS, is structurally ribbed much heavier, and has a different "feel" to it.

I doubt you could KB any one of them vis-a-vis a gun detonation unless you made a pipe-bomb style home brew. ( like steel tube, threaded on steel caps, etc)
 
I use an RCBS and have been smacking it against 1/2" steel plate. It takes me no more than 3 smacks to pull any bullets. My RCBS came with instructions to hit it against a solid surface such as concrete or steel, and that wood or other less solid surfaces are less effective, and also require more force to create the necessary inertia to knock the bullet out.
 
Go to "ask the gunwriters" site and look at thread about impact ignition with inertia bullet pullers. Some very good information from reliable experts. Will at least convince you to wear safety glasses when hammering ammo.
 
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