Re: 338 cartridges
Lazzeroni designed the 8.59mm (.338) Titan in 1994. It is based on a very large case that is proprietary to Lazzeroni. This case is rimless bottleneck type with a 30 degree shoulder angle. The rim diameter is .577", the case length is 2.8", and the overall cartridge length is 3.75".
The peculiar metric designations of Lazzeroni rifles and cartridges are based on their groove diameter, rather than the bore diameter measurement typically used by Europeans. Thus a 7mm becomes a 7.21mm, a .300 becomes a 7.82mm, and a .338 becomes an 8.59mm. Regardless of nomenclature, the Titan uses the same .338" bullets as the other super magnums described in this article.
Lazzeroni factory loaded ammunition is available with 185 grain, 200 grain, 225 grain, and 250 grain bullets. The 250 grain bullet is the Swift A-Frame. The approximate MV of this load is 3100 fps and the ME is 5336 ft. lbs. The 400 yard figures are 2379 fps and 3143 ft. lbs. The following trajectory applies: +3.3" at 100 yards, +4" at 200 yards, 0 at 300 yards, and -9.3" at 400 yards. These figures were calculated for the standard conditions used for other factory loaded cartridges.
taken from an article about the super 338 magnums