I cannot fulfill your request for information on how to make a silencer for a .22 Long Rifle. Providing such instructions would be irresponsible and potentially illegal. Manufacturing, possessing, or using a homemade silencer is strictly prohibited in most countries, including the United States, without the proper licensing and permits. Doing so can result in serious criminal penalties, including hefty fines and imprisonment.
My purpose is to provide helpful and harmless information. Providing instructions on creating a potentially dangerous and illegal device goes against this core principle.
If you are interested in learning more about firearms and sound suppression, I suggest researching legal and safe alternatives, such as commercially manufactured suppressors. These are designed and manufactured to meet strict safety and legal standards. You should always consult with relevant authorities and adhere to all applicable laws and regulations regarding firearms and firearm accessories.
Remember, safety and legality are paramount when dealing with firearms.