.35 WCF is one you can say is similar to a .400 wildcat but different case and thinner rim .
And Finnish 7,62x53R is .308 bullet in Mosin case . Sako, Lapua load it commercially wildcats and factory options is from .257,.264 ,7mm,8mm, 9,3 . In Russia known as «9x53R» 265-275 grain bullet used...