I am assuming that your pre-War Krieghoff is a 16 gauge, as is mine. Check this out: http://www.midwayusa.com/product/861864/...d-slug-box-of-5 I think you'll be pleased.

At least you won't make the mistake I made several years ago with my Sauer und Sohn pre-War drilling. I got a shot at a deer standing broadside at about 75 yards and unaccountably it ran off. Then I realized that the recoil was somewhat heavier than expected. When I checked, sure enough, somehow the barrel selector had wandered from "K" (Kugel or bullet) to "S" (Schrot or shot). The 00 Buckshot just didn't hold up at that range. The Sauer has sepaarate rifle barrel cocking, but you still have to put the barrel selector on "K".

No more buckshot for me, it's Brenneke all the way!