Paper Patch bullet tension

[Eric Johanen]

I use Winchester brass in my 45-70 and Starline in the 45-90. I do find a slight variation in neck thickness and that can cause a few bullets to be a bit looser in the case neck. Occasionally a bullet slips the case and I have to fool around with them to get them back together. I have tightened up on the length of my neck sizer and things look pretty good for bullet tension. A very few do seat a bit tighter than the rest and I was wondering if there would be any noticeable results on the target when fired in a standard chamber cut for grooved lubed bullets? There is plenty of room for the brass to expand upon firing and I can not think of any real difference as opposed to a tight paper patch chamber only. Has anyone thoughts or done testing with this in mind? Powder charge and a .060 poly wad are compressed to seat the bullet .120 in the case so I am seating pretty shallow for the best possible bore alignment. They shoot quite well and I would like to cure the occasional bullet slips.