chvyrkr. 11380 posts · Joined 2007. #3 · Nov 30, 2009. Split shots will consume alot more HPO, you'll see more performance and a more efficiant performance goin with single shots. And FYI, if you have a PHP chip, you're already runnin "custom" tunes, and Bill does reburns. So do not let tuning hold you back.
A double shot of espresso is typically 60 ml (2 oz) in volume. This is twice the amount of a single shot, which is typically 30 ml (1 oz). The exact volume of a double shot can vary depending on the coffee shop or barista, but it is generally accepted to be around 60 ml.
With the 320-grain soft-nose Woodleigh bullet, groups were about the same. Our first loads with the 275-grain Mt. Baldy gas-checked cast bullet were too hot. They kicked worse than the 320-grain loads and shot into 10 inches at 100 yards. A reduced load gave a velocity of about 1800 fps and got groups around 2 inches.
This makes a double shot espresso stronger in flavor! Finally, a single shot of espresso is an ounce of espresso with 63 milligrams of caffeine. Whereas a double shot is two ounces with a higher caffeine content of around 126 milligrams. As can be seen, their differences are mainly about the quantity and amount of the shot and its components.