Get yourself a one piece rod and make sure you use a bore guide.
With any rifle I only ever go one way through with the brush, take it off, pull the rod out, put the brush back on and continue. All differences of opinion on this, but thats the way I do it.
If you do continue pulling it back through, make sure the brush has completley left the muzzle, and never try and reverse the stroke of the brush while it is still in the barrel, as that is when you will have problems.
What make brush are you using, as even a new brush shouldnt be really tight?