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To: JF Quinnelly who wrote (16247)	1/5/1999 11:07:00 PM
From: Gauguin	Read Replies (1) \| Respond to of 71178

Hey, having you call it evolution is high praise. I would guess rifling gerbils would best be done about the gerbil hips. A head first gerbil would probably compress backward to the "hip wad". Therefore I'd say spin them about the hip bones, with minimal crushing. Say coved rifling. Within a range of say twenty thousandths, for gerbil anatomy/size variations, as long as the rifling was larger, a gerbil should exit the barrel intact in perfect rifling. Loading is, as always with irregular ammunition, a problem. Breech seems the way. Sedation or stunning. I don't know anything about firearms, and if I did, I doubt I'd discuss this.

To: JF Quinnelly who wrote (16247)	1/5/1999 11:20:00 PM
From: Dayuhan	Read Replies (1) \| Respond to of 71178

how are riflings built? The traditional method would, of course, be to cut a regular spiral groove or two in the "barrel". Some might object to that. Some might find it stimulating. Perhaps a topic for a Perversian poll?

To: JF Quinnelly who wrote (16247)	1/6/1999 6:34:00 AM
From: Ish	Read Replies (1) \| Respond to of 71178

Yeh, where is my Playboy?

To: JF Quinnelly who wrote (16247)	1/6/1999 2:19:00 PM
From: Gauguin	Respond to of 71178

I think the DOW is going to hit 11000 today, JFred. eom

To: JF Quinnelly who wrote (16247)	1/8/1999 12:29:00 AM
From: Jacques Chitte	Read Replies (1) \| Respond to of 71178

For small arms, there are three ways to rifle a barrel. The oldest method is to cut the rifling. After the hole is drilled and reamed with specialized tools - a long cutting bar called a broach is inserted and drawn through on a helical path. Each time the cutter is advanced a ten thousandth. Twenty to fifty passes later, a groove is carved. Then the barrel is rotated sixty or ninety degrees - and the process is repeated. Some companies still offer broach-cut barrels. The second way is button rifling. A reverse cast of the bore profile is machined in some very hard material, typically tungsten carbide. This is then drawn or pushed through the bore in a single pass. Very quick and leaves a finished bore surface every time. Not so easy to get a consistent twist rate though. Most premium aftermarket barrels are button rifled. The third way to make a rifled barrel is to cold-forge (hammer) a thick steel tube onto a cast of the bore - a mandrel made of tungsten carbide. The big rifle makers pretty much all use this approach. Field pieces have many deep grooves. I saw a three-inch gun with about thirty grooves a good eighth of an inch deep. This requires a large soft driving band to surround the projectile. Poli-Grip or Skippy straight from the frij should work with gerbils.