no, no problem at all.
Your 38 is actually .357 dia as you have stated.
With cast bullets it is generally favorable to have your projectile sized .001 or .002 LARGER than bore dia. This is an aid to help reduce leading in the barrel. The general wisdom is to use as large a bullet as will fit in the chamber. (before ordering a sizer, you may want to 'slug' your chambers in your revolver, all of them.)This is easy done. If you already have a projectile (not a round of ammo), measure it and see if it will 'slip' through the chamber on each one of the cylinder. If it does, get a bigger one, by about .001 and try it again. Use the biggest bullet that will 'just' fit through with a hand pushed rod.
Two main factors work in creating a leaded barrel and poor accuracy.
Bullets too small for barrel and poor lube.
More importantly is the throat of each chamber in the cylinder. If you throat is .356 and the barrel is .357 you will generally have a leaded barrel. The projectile will be 'sized' down too small for the barrel and most likely creat leading.
Ideally you should have a .358 chamber and a .357 barrel.
hope this helps.
Last edited by blammer; 01/08/13.
