Author Topic: OK Veral, how about this?  (Read 1349 times)

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Offline mag41vance

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OK Veral, how about this?
« on: March 26, 2005, 02:07:03 PM »
Question about a concern. I have some .360 sized GC LBT bullets for shooting in my .357max.
I crimp these in a Lee crimp die. It is somewhat difficult to ram the cartridge into the die because of the .360 bullet diameter. I have to exert quite a bit of force in order to get the bullet into the die. My concern is; Is it possible that the gas check could be forced off of the bullet inside the case due to the excessive pressure required to penetrate the die?
I believe this die must have an ID of around .376” at the opening which is pinching the case in effect resizing the cartridge.

What are your thoughts on this theory / concern?
no x now!

Offline Veral

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OK Veral, how about this?
« Reply #1 on: March 27, 2005, 12:05:55 PM »
Your last question was for my thoughts     THEORY, concern.

I will never give my theories to anyone.  When I get one I prove or disprove  it by experimentaion.  When I learn the facts I tell anyone interested, and never disclose my theories.

There is no concern about gas checks being pushed off inside the case, due to the heavy sizing being done by the Lee factory crimp PISTOL dies, but bullets are often loosened, because the sized cases spring back from sizing more than the bullets,  which ruins performance due to lost case neck grip.  In my experiance with one of those dies, only part of the bullets were loosened out of a lot of sized ammo.  For this reason I definately reccomend against ever using the Lee Factory crimp Pistol dies.  If bullets are too large to chamber, fix the bullets before loading.  And pull the bullets on any ammo which doesn't chamber easily.

So, if loaded ammoy chambers easily with the .360 diameter, shoot it.  Oversize cast bullets DO NOT increase pressure compared to bore size.  If it doesn't follow the above directions.
 
The Rifle dies are another matter entirely, as they crimp only, and can be adjusted to crimp to any degree desired, with or without the bullets having a cannulure.  They are useful in many situations, and especially for most levergun ammo when bullet seating depth needs to be adjustable.
Veral Smith

Offline mag41vance

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OK Veral, how about this?
« Reply #2 on: March 28, 2005, 12:09:50 AM »
That is very interesting.

 Much obliged
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