impact bullet puller

[pacrat]

Disagree. The brass will not spring back more than a thousandth or two after crimping.
More crimp means just that; it won't end up looser than a light crimp.

Sorry but you just proved yourself incorrect overall, while being partially right.

The underlined is a correct statement.
that is where correctness ends.

Proper "interference fit". Often incorrectly called "neck tension". Is a neck that is .001-.002" smaller than the bullet dia.

Once the bullet "lead" is surrounded by the "brass" neck. After seating. That interference fit is what holds the bullet.

If you "over crimp" the neck of the case with the bullet in the neck. Using a taper crimp die. You are "circumferentially compressing" not only the brass neck but the lead bullet that is inside it.

So yes, when the neck "springsback" that .001" Because that is what brass does.

But lead has no such "springback" properties. It stays the same size it was compressed to, while inside the neck. Leaving it loose in the neck of the case.

[TexasJackKin]

Sorry but you just proved yourself incorrect overall, while being partially right.

The underlined is a correct statement.
that is where correctness ends.

Proper "interference fit". Often incorrectly called "neck tension". Is a neck that is .001-.002" smaller than the bullet dia.

Once the bullet "lead" is surrounded by the "brass" neck. After seating. That interference fit is what holds the bullet.

If you "over crimp" the neck of the case with the bullet in the neck. Using a taper crimp die. You are "circumferentially compressing" not only the brass neck but the lead bullet that is inside it.

So yes, when the neck "springsback" that .001" Because that is what brass does.

But lead has no such "springback" properties. It stays the same size it was compressed to, while inside the neck. Leaving it loose in the neck of the case.

^^^^^^^
This, plus if you apply too much force to form the crimp, it's easy to swell the neck behind the crimp, especially on straight walled cases making the bullet loose in the case. You might not be able to push the bullet back, but you can often spin the bullet in the case.

[nedro]

hopefully my mistake could help someone else not do what I did

For the life of me, I can't figure out why anyone would do what you did.
You are the reason we have frivolous law suites today.
You are the reason we can't have fun things.
And risking being banned, your actions were stupid beyond belief.

[Shootinginca]

why on earth would you leave the previous 2 bullets in the puller as you're pounding out the 3rd?

Wtf would compel u to do this? I'm thinking you further compressed the bullet on the upstroke and may have ignited the powder thru compression?

I have the rcbs and I've pulled 100s of rounds w it over the years. Never had an issue and I would never leave the contents in there to pull another.

[the86d]

Impact puller makes me think of those cartoons where they are tinking warheads marked as duds on an assembly line. Kennetic puller sounds more logical to me...

[divingin]

Proper "interference fit". Often incorrectly called "neck tension". Is a neck that is .001-.002" smaller than the bullet dia.

Once the bullet "lead" is surrounded by the "brass" neck. After seating. That interference fit is what holds the bullet.

I can see that being the case with taper crimping.

With a roll crimp, however (which will be the seat and crimp in a single die setup), the rolling of the brass into the bullet diameter is what will provide the resistance for the bullet to push into the case. The only spot the bullet is compressed is at the roll crimp. Assuming the roll is slightly deeper than springback, you have the "ledge" of brass preventing setback.

['ol shooter]

I can see that being the case with taper crimping.

With a roll crimp, however (which will be the seat and crimp in a single die setup), the rolling of the brass into the bullet diameter is what will provide the resistance for the bullet to push into the case. The only spot the bullet is compressed is at the roll crimp. Assuming the roll is slightly deeper than springback, you have the "ledge" of brass preventing setback.

Incorrect. The neck tension still holds the bullet. The crimp is there to prevent the bullet from moving forward under recoil. That is why it is used on revolver and most rifle brass, especially a heavy recoil round like the .300 Win Mag

[ChrisGarrett]

went to the range today shot 45acp thru a kriss vector the gun was not feeding well some of the rounds got compressed to what I thought might be an overpressure issue so came home to use the bullet puller on 5 rounds of compressed ammo. I did 2 rounds ok left the two bullets in the tube of the hammer the third round exploded in the hammer sending plastic all over luckily for me only a cut on my finger have not found the shellplate yet but suspect it is in the attic I was very lucky the scariest part is I have no idea why this happened will be looking at different bullet pullers for sure

Dear Diary,

In this thread, I learned something new today.

Glad you weren't seriously hurt.

I've used a kinetic puller quite a bit and I always remove the contents for every round, each and every time.

Chris

[tonyjr]

'ol shooter
You should have said the cartridges left in gun [ cylinder / magazine ] - sounds like you mean the fired bullet .
I know what you mean / meant . Other wise people that don't know could end up with a mess in magazine and power burns from a revolver .
On the 45 ACP , I prefer the straight crimp . On rifle and magnum pistol the roll type crimp .
But I do the straight crimp on jacketed [ I don't want buldges ] and the roll type on jacketed hollow points [ the lead gives easier than the copper at tip . ]

['ol shooter]

Right, the remaining loaded cartridges in the cylinder or rifle magazine. I also forgot to add the lever actions that use tube magazines, my two Win. 94's, in which the crimp does serve to prevent push in as well as forward movement.

[Lead Waster]

My guess is that the two extra bullets maybe hit the working round, and possibly the primer was jolted out of it's pocket? Then the next swing around you have a loose live primer rattling around with two lose and one fixed bullet and blammo!