Any big difference? Is the .20BR on the edge of being overbore? Hear mostly of the .20PPC but have only seen one article in Small Caliber News on the .20BR. What is the case capacity of each? Who has experiences with the .20BR? Thanks, Larry

I have a 20PPC. Still haven't shot it much.
I've pushed the 33 grain VAMX to 4500 FPS
safely. 4300-4400 fps is more practical.

Water capacity of the PPC case is 33.2 grains
the BR case is 40 grains. Not sure how much faster you could push it with seven extra grains of powder.
I think there are a couple guys here shooting
a 20 BR.
http://www.varminthunters.com/forums/ggvg/index.html

Thanks for the input Mike. I thought that no one was going to answer my post. I guess the .20 calibers are very much still in the minority. What make of rifle are you using with the .20PPC? If it's a Remington, did you have to have the bolt (ejector) worked on? May be a sako type ejector?
Thanks, Larry

It's a Viper. Built by Stiller's Precision Firearms. There are some more details here.
http://members.home.net/2mike/3/page3.html

[url=http://members.home.net/2mike/3/MVC220F.JPG[/url]

Lets try that again.