375 rum improved...not the Tejas

[Doublezranch]

In my quest for making the 375 rum scoot a little faster I stumbled upon this 375 rum improved. It's called the Box Monkey Express. Does anyone have any information on this wildcat? It's very intriguing. Here is a pic of the 375 BME next to a 375 RUM.

 

[IdahoCTD]

I don't think I'd shorten the neck that much. It only looks to be about .250" long.

 

[Doublezranch]

I agree. It's really short. But keep in mind you can get away with a short neck because of all the bearing surface on those big bullets.

 

[HARPERC]

First I heard of it, Cool name-I'll tag in.

 

[Doublezranch]

I've been talking to the guy that designed it. He named it after his trucking company. He wanted something long range for elk. He is trying to do a 338 version but has not been successful. The neck is much too short for a 338 cal bullet.

 

[Doublezranch]

Here is the reamer drawing for the BME.

http://www.pacifictoolandgauge.com/...ages/chamber reamers/375RUMCustomFin33761.pdf