I have been beating my head against the wall trying to get rid of runout. Well I have managed to put up a high success rate of .002 or better. I will be making a video in Nov after hunting season.
Here is the written version.
There are things you can do ahead of time to reduce runout....this pertains to seating the bullet.
Equipment:
RCBS CaseMaster guaging tool
RCBS Gold Medal Match die
Press
Brass, powder, bullet etc.
Small jewlers mallet, I used the flat part of my chamfer tool
Oh and most importantly PATIENCE
Step 1:
Run your brass up into the die making sure the neck,shoulder and body, hit the center of the sleeve. You may have to adjust your shell holder or placement if the base of the brass in the shell holder, or both. ( I had to adjust mine every time) Run the brass all the way up to center it. Let it down far enough to fit the bullet into the window. Do not drop it all the way down. Keep the neck in the sleeve.
Step 2: Drop the bullet into the window. Run the bullet into the brass or brass into the bullet, however you want to say it. Seat the bullet so the neck just grabs the base of the bullet. 1/16 to 1/32 of an inch and lower the ram.
Step 3: Take the cartridge out of your shell holder and place it in the RCBS case master guaging tool. Set the tool up so it measure runout at the beginning of the ogive. Spin it to find out how much runout exists.
Step 4: Spin the bullet to find the topside of the runout. Hold the brass firmly in place with your fingers and tap on the tip of the bullet with a jewlers mallet or something flat. Spin the bullet again to measure runout, repeat this process until you have .001-.002 of runout. It is important that the bullet is started straight and true.
Step 5: Put the cartridge back in the shell holder. Get down underneath your press to watch the bullet go into the sleeve. THIS IS THE MOST IMPORTANT PART. Make sure the bullet and neck are centered in the sleeve. If they are not....all the work you have done can be lost right here. When you have double, triple, and quadruple checked the centeredness by raising and lower the ram and spinning the shell holder or base of the brass to center it. Proceed to seat the bullet.
I loaded up 30 rounds tonight of 300 Win Mag and 90% of them had .002 or better for runout.
This may be confusing, like I said, the video will be coming to youtube in about a month.
Happy reloading.
