30 XC vs .375 CheyTac
A to-scale size comparison of the 30 XC and the .375 CheyTac, drawn from SAAMI and C.I.P. cartridge dimensions and aligned at the case head.
30 XC (left) beside .375 CheyTac (right), shown at the same scale.
The 30 XC has an overall length of about 4.21″ with a 0.308″ bullet. The .375 CheyTac runs about 4.46″ on a 0.375″ bullet. That makes the .375 CheyTac about 1.1x the overall length of the 30 XC. See the full reference for each: 30 XC and .375 CheyTac.