The post whore thread.

[bogie]

I understand the danger of high pressure due to cases being too long, but I am almost certain I read in my manuals that the case is perfectly formed into the chamber it is fired in, then it doesn't need resizing or trimming? I guess I'll have to go re-read that section. I'm still a total noob at the reloading game.

You are right in that the case will be formed to the chamber. However the case mouth expands forward every time you fire it since it's constrained at the back by the bolt. Since there is not much constraint where the bullet meets the lands, the case will want to stretch into this area as it expands. The cases continually stretch and thin with subsequent firings.

[mcjhr]

Who was Kevin drummer?

Who is john galt?

[mcjhr]

Howdy-Ho hose!

[bogie]

Who is john galt?

I need to read the books. The movies were terrible...

[mcjhr]

Yeah, I saw both....I am the king of time I suppose

[brutal]

I have the Lyman Universal Trimmer and power adaptor. It is consistent to about +/- 0.0015". It is easy to adjust. There is a threaded adjustment with indications. I've had no complaints about this trimmer whatsoever. The power adaptor is a must if you have significant quantities of brass.

http://www.midwayusa.com/product/720...ProductFinding

This is what I've been using and I'm pleased with it for the volume I run. The universal chuck head is a plus.

[mcjhr]

You crazy guys and your half a second .30 caliber tactical assault clip magazine reloading!

[waxthis]

Stupid me. Thought this was the post whore forum.

[mcjhr]

Pose as whores forum?

[HoneyBadger]

You are right in that the case will be formed to the chamber. However the case mouth expands forward every time you fire it since it's constrained at the back by the bolt. Since there is not much constraint where the bullet meets the lands, the case will want to stretch into this area as it expands. The cases continually stretch and thin with subsequent firings.

Gotcha. That makes sense.