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Allow time for them to load. For the do-it-yourself gunsmith, this book, Gunsmithing Rifles by Patrick Sweeney offers an abundance of quality, useful information in the form of specific instruction for home shop projects. There are no chapters that would not be of value to the average rifle enthusiast.
There is a great section on refreshing hunting rifles. This includes correcting poor rifle accuracy, refinishing wood and metal parts, drilling and tapping scope mounts and metallic sights.
The information continues on into action/bolt lapping, rechambering, changing a bolt handle, installing a new safety. An inexpensive book that provides detailed coverage of trigger replacement and tuning, by rifle manufacturer.
The fourth point I would like to make is instead of taking a cleaning kit to the range with you for a rifle shooting session use a hoppes bore snake, quick, easy and efficient.
The fifth point I would like to make is this, a rifle is a precision built piece of equipment capable of taking out long distant targets for the average person we'll say 350 yds. with a tiny projectile for most users under 1/2" in. in diameter. Where as a shotgun has a pattern of about 30" in. at about 40 yds. with many projectiles (shot) and yet all you ever read and hear about is proper shotgun fitting.
Now before you retaliate with the statement a shotgun is pointed and not aimed which by the way is not true but only for instinctive shooters of which there are very few with Tom Knapp as the best known.
The reason that is not true, as when you are fitted properly with your shotgun; when that gun hits your shoulder you should be looking directly down the rib on the barrel at your intended target with bead on barrel as front sight and your eye as the rear sight. (Hence aimed not pointed.)
Which brings me to my point, a rifle needs to be fitted to an individual, even to a higher degree than any short range shotgun. I have over the years altered more rifles to fit individuals than shotguns and the results were always the same, very satisfied big game hunters who were able to make shots on larger animals simply because when their rifles hit their shoulders they were looking at their quary in their scopes and did not have to look around for them.