This is
@tinktink12's Walther 10meter Olympic air rifle that she shoots in competition. I have an identical Walther LG-400 in black/silver. On the left side of the receiver of any serious air rifle you have a dry fire switch.
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On these rifles, it's the black toggle. F is for fire, T is for Training/Dry fire. When in the T position, the trigger activates as normal, but the air cylinder is disconnected, and no air is released.
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All that's needed for practice is 33ft, and some sort of backstop. We use a steel pellet trap, or a wooden box filled with Duct-Seal putty.
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This is a 12 Bull 10meter target. We keep one at the backstop marked "Do not shoot" specifically for dry fire practice. The 10 ring or Bullseye is not really a ring, but a dot about the size of a period at the end of this sentence.
I spend no less than 30 minutes a day dry firing, and 15 minutes live firing. Even more before a competition.
With larger caliber firearms, I still dry fire 20-30 minutes a day before a hunt, and live fire as often as I can get to a range.
I often dry fire not only from sticks, but standing, kneeling, sitting and prone. Do this before a hunt and you'll put it right on the money.