On some of the older rifles, they had a set trigger. You would pull it first to set the other trigger. The second trigger would be a hair trigger. It would have a very light pull. The first trigger was supposed to keep from accidentally firing the rifle as you were aquiring the target.
If you are referring to a "SET Trigger" on a rifle. The Set Trigger releases all the normal mechanisms in the action but does not release the hammer on the rifle, but it sets up the firing trigger to act like a "Hair Trigger" just barley touch the firing trigger and the rifle goes off. It's used in hunting. It is common on black powder "Hawkins Rifles."
Best left to a trained gunsmith.
Rear trigger is "set" trigger, by pulling it 1st, it makes the main trigger a "hair" or lighter trigger
Gun books would be a place to start
The Henry lever action rifles do not have an adjustable trigger. A competent gunsmith could improve the function but to answer your question, no........
There were a few that do not have a standard trigger, but use a THUMB trigger. Do a web IMAGE search for Winchester thumb trigger rifle, and you will find it.
rifle basix makes the trigger of your dreams..
To adjust the trigger on a Marlin XS7 .308, first ensure the rifle is unloaded and safe. Remove the trigger guard to access the trigger assembly, then locate the adjustment screw, typically found at the front of the trigger. Turn the screw clockwise to increase pull weight or counterclockwise to decrease it, making small adjustments and testing the trigger pull until you achieve your desired weight. Always remember to reassemble the rifle and perform a function check after adjustments.
Do you mean "what is an automatic Rifle". Any rifle that keeps firing as long as you hold the trigger down is an automatic rifle. It will only stop when you let go of the trigger or run out of bullets
Yes, just simply buy a double trigger and double trigger guard, open up your marker, remove and replace the old trigger and trigger guard.
Type your answer here... how do I adjust the trigger on Remington 799
75 and up