I have seen reference that there are “G.F.” hs on recent production of 7mm & 8mm Mauser.
I thought initially that these may represent “Givlio Fiocchi” as these two calibres and some other new case types (7x57R, 7x64, 8x57JRS) were shown in the 2010 Italian catalog. However, this doesn’t seem to be true as all the Fiocchi production (by Norma ?) seems to use “G.F.L.” hs.
Maybe for Fiocchi USA ?? or someone else altogether. Any info greatfully received.