Re: Fouler same powder and bullet as real load?
Yes, use the same load as a fouler. Diff powders and diff bullets will leave the bore in diff conditions. IE firing your test loads for groups right after firing a diff load will very often cause a 1st shot flyer with the loads you intend to group check. This happens to me all the time, which is one good reason 3 shot groups are useless to some extent during testing. 4-5 shot groups are far more useful when developing loads. It doesn't happen all of the time, but more often than not.