Welcome to the Handiholics Society!
Wolf ammo - YUCK! Try some of the 45gr. Winchester bulk pack avalible at most Wal-Marts. Most folks are having great success with it.
Might try swabbing the bore with some FLITZ and a tight parch several times to nock of some of the rough spots. I have about 1500 rounds through mine - Yes, it will get better with more rounds thru it.
You can also do a search here for the "o-ring" trick. That shows some improvement in some NEF's. Also, if you are shooting from a bench, you are supporting it under the reciever rather than on the forarm.
others will chime in in short order I'm sure.
Now, repeat after me .... "My name is MIdeerhunter and I'm a Handiholic." Admitting you have a prolem is the first step to recovery. Then again, we don't know of anyone who has recovered ... it's a permanent illness .... terminal illness for the checkbook!
Jerry