Zivikins

I have cycling issues with Fiocchi 00 buckshot 1325fps but NobelSport 1200fps 00 buckshot is fine... I noticed the Fiocchi shells are shorter by just a bit and I can fit all 7 rounds in the tube but I can only fit 6 of the NobelSport since it's a tiny bit longer. I have no issues with Fiocchi slugs, they are also a little longer than the Fiocchi buckshot and I can only get 6 in the tube. Not sure if there is a correlation since I haven't tried just loading 6 rounds of the Fiocchi buckshot yet.