Thread: slugging a bore

I use wooden dowel and a rubber mallet so no chance of damaging the bore. The wooden dowel is cut into 200m sections so that it doesn’t warp too much, just add the next section when you’re getting close to the crown. I also stuff a rag in the action to collect the bullet as it falls out, lead is soft and you’re trying to measure to the nearest thou so want it as accurate as possible.
When selecting the dowel, try and get it as close to the bore size as possible.

Northdude, not sure why you’d want to slug a 22 rim fire seeing as almost no one reloads for it, but use a lead ball sinker slightly larger than .22, or an unsized lead .22 bullet. You can smack it end on with a hammer to get it to obturate a bit before sticking it through the bore, this should ensure it’s wide enough to reach the grooves.