I have a .358 Norma mag.
Shooting currently 225 grain Barnes X in 2800 fps.
Barrel length is 21" as i am using the gun as my walking with the dog gun och driven hunts.
Have previusly used 300 grain Barnes orignal bullets when they where made and those was shot at 2550 from the previus barrellength of 26".

Regards H�kan

Roger:

It's true that the various 9mm rifles sometimes exhibit different bore and groove diameters, but that was before normalization. It's not really a purposeful two-tier solution I believe.

As to the 8mm field, the gradual replacement of the "I" size bullet by the "S" size bullet in the hunting field was a process that went over several decades. The original preference for tight barrels in civilian use was in the quest of accuracy (some gunsmiths going to lands as tight as 7,70 or 7,75 mms). Only after World War II, this gradual development came to an end, and the "I" cartridge was fully replaced by the "S" variant in hunting use. One of the many reasons certainly was that the majority of existing hunting rifles did not stay in Germany after 1945/46 :-),

The last special purpose "I" bullets were a production lot of Brenneke TIGs that were sold as remainder from Waffen-Stark in N�rnberg until several years ago. If market demand were there, Mr. Mank from Brenneke will gladly produce another run. Do you know a US wholesaler who will order a batch of 100,000 or so ?

Regards,
Carcano

I should have been more specific. Why did the Military switch from the .318 to the.324?? roger