[ballpowder]

After following Harold's full up .20 vartarg bench rifle, I'm curious to find what can be accomplished in .17 cal. I'm getting close to having an Unlimited class Railgun finished and would like to experiment to see what is possible.

I want to get some opinions as to which chambering people think is most accurate. Just playing around with my form dies I found that shorting the 22 BR by .400 makes a cartridge that holds about 20.3gr of H322 half way up the neck. I'm thinking about 17gr powder is going to be my starting point. The BR case shortened that much and you are in the really thick brass. I'm looking at a tight neck 17 fireball but more intriguing is the 17 fireball shortened about .125 or 1/8".

What are your recommendations???

Tim