Both sounds crazy, ES, SD and all the rest dont or wornt make your bullet shoot more accurately.
Please tell me where I said that? I can't find any such reference.
What I said was that consistent repeatable velocity is one of the keystones to good reloads. With the information from a chronograph you KNOW the spot where a load performs best, anything else & you're just guessing. With that information you can do many things & those things will in turn give you improved accuracy. Its the process that gives the accuracy, not the gadget. Thats just a tool, like the speedometer in your car.
Its not in any way a "shortcut" but an additional information source for good data to work from. There is absolutely no reason why you can't clock loads while shooting for 100, or even 200 yd groups at the same time.
Allan Quatermain: “Automatic rifles. Who in God's name has automatic rifles”?
Elderly Hunter: “That's dashed unsporting. Probably Belgium.”