1 click for at 100yrds and 4 clicks at 25 yards "if your scope is 1/4 IN PER 100?" aND IF YOUR SCOPE IS PERPENDIGULAR TO YOUR BARREL and if you are shooting corresponding loads to the caliber of gun you are shooting?!? SOUNDS Confusing doesn't it? Ok lets go back to basic and a SOLID REST. First and formost! If you shoot a bullet at 25 yards and it is on a solid base and you are certain it is on then take the rifle and place the scope on the hole you just shoot. Now without moving the gun and or bag and or scope dial your scope to point of aim you had wish to hit. Now shoot another and dial again with the same formula as above. THEN figuire out what yardage you will shoot and repeat the process. It is just that simple if everything is tight and your gun is shooting consistantly? You will have it?

You might try that a little differently.

First thing ( you've probably already done this):make sure that the scope is mounted correctly and "fits" you well (as far as eye relief and all), make sure you have got the cross hairs alighned as straight as possible for your "sight picture".

Get some good (BIG) targets with all the graduated markings for measuring distsnce from the bull and get some of those orange sticky dots to cover up your bullet holes for additional use.

If possible before you shoot at all, take the bolt out of the rifle and the breach plug out of the muzzle loader (if possible)so you can look down the inside of the barrel.Get the gun in a steady position placed on sand bags where you don't have to touch it...just look thru the barrel and the scope. Center the barrel on a piece of white paper (or milk jug or something) at a moderate distance...you'll be able to see it thru the barrel. Then without moving the gun, move the crosshairs (by adjusting the turrets) to be as close as possible to what you see down the center of the barrel. You can keep trying till your reasonably satisfied. Replace the bolt and the breech plug properly and get ready to fire.
That is old fashioned bore sighting and it works well.

Get in the habbit of giving those scope turrets just a little tap with a coin or the handle of the screwdriver everytime after you adjust them

Make that first shot count...try to hit the bulls eye. You can practice pulling the trigger on the unloaded rifle just to get as comfortable as possible before the action begins...relax.

Paper targets are of course great for sighting, but when I just want to practice shooting with a rifle I know to be sighted in, I'd rather shoot at small objects such as cans or or metal targets...the seem more fun and help me concentrate more.