I know this topic has been hashed over in a few threads here, but I had a thought regarding the use of foam backer rod.
In the beginning of my using it, I cut the foam rod to the length equal to the distance from the powder charge to the bottom of the bullet.
Then, I started cutting the rod even with the case mouth and letting the bullet compress it a little - saw no difference other than an occasional piece of foam could be found on the ground.
Now, I am considering going the other direction and trying a much shorter piece of foam against the powder, maybe .5” or so.
My rationale is that a snug fitting foam piece will do the job just as well as a long piece. Very similar to the guys using a toilet paper square rolled into a ball.
Any thoughts on this?