Whats the ratio or DME per gallon when bottling?
When priming with DME you use 1.25 (1 1/4) C of DME and 2 C water boiled for 5 mins for the entire 5 gals.
Watch out for a boil over even with this small amount.
I have a 3 gallon batch that I am looking to prime, would 3/4 be ok for this?
Right: 1.25 / 5 = .25 *3 (gals) = .75 or 3/4 C...
Just in case you are interested in altering carbonation levels for different styles (definately not required), you could use the following link. http://hbd.org/cgi-bin/recipator/recipator/carbonation.html
Make Beer, Not War.