Maximum Safe Radial Expansion for Brass Cased Rifle Cartridges

[Edward Horton]

"I think you should start this thread over. It's just too cluttered-up with irrelevant replies."

We now have at least two people in this posting who recommended greasing .303 cartridge case to prevent case separations.

Until recently Parashooters "Head Space 101" contained the recommendation to use resizing lubricant to fire form .303 cases to prevent case head separations. In other posts Parashooter admitted that he used caster oil and lubricated "ALL" his fired .303 cases.

"Head Space 101" was updated here recently removing the lubrication or greasing section of cartridges at Parashooters request as being "Too Controversial".

The reason I bring this up is simple, what you see here is a war of comments between the case greasers and the non-case greasers.



Here in the United States we have military grade cartridge cases and commercial grade cases. Commercial grade cases were NEVER designed to be fired in a military chamber. And now Mr. jmoore wants to take a topic from the Enfield forum and "expand" on it here and criticize my tests and findings, and now Parashooter shows up.

The problem here in the U.S. is simple, Lake City Arsenal never made "Lake City .303 cases (Like Greek HXP cases) and people are blaming the Enfield Rifle for American cases the Military Enfield rifle was NEVER designed to fire.

I find this post irrelevant after gauging and measuring 500 Greek HXP cases and not finding a single once fired case with ANY thinning or stretching in the web area. (Axially or radially)

Below are two non-American .303 cases, neither case had any thinning or stretching in the web area.



Lets try and keep the BS to a minimum gentlemen and DON'T tell me American cases are perfect. On top of this the cases below were fired in a commercial SAAMI chamber and NOT a larger military chamber. (LESS radial and axial expansion)





And Mr. Parashooter did I tell you even the United States military is telling everyone NOT to grease or oil their cartridge cases.



Irrelevant comments I think not Mr.Parashooter, what we have here is a setup with the angry sharks swimming in a circle getting ready to attack.

And Mr. Parashooter chamber pressure and cartridge case design does play a part, here is what happens to a commercial .308 case fired in a military chamber with more head space than the commercial case was designed for.





This is why military case are thicker in the base web area and radial expansion isn't worried about.

[Parashooter]

Please let it go, Ed. You're so fixated on lubrication that it seems you can't even allow a rational discussion of radial expansion, the specific subject requested on this thread, without going off on your crusade. This is not just discourteous, it's boring. I know you can do better if you will just try.

[Amatikulu]

Ok, I'll take the rap for closing this thread.

It is no longer serving a useful purpose so before it becomes unpleasant, let's end it here. Start a new thread if you want to continue the discussion but please everyone keep it away from being personal.