Rail gun barrel length?

[alinwa]

I'm building 3 barrels for my Kenzler rail...... Brand new territory for me. I've never shot nor handled a rail.

Right now I'm going to leave the blanks full length, just whack off the last inch (lapping bell) but I'm guessing there is a "best balance" to equalize loading on the slide assembly?

Anyone care to comment on this?

 

[Mike Bryant]

I’ve seen them shot at all lengths. At least, leaving it full length gives you the option of cutting the threads off and rethreading and rechambering later on. I normally shoot mine at 24” or 26” and when it quits shooting competitively I replace it with a new barrel.