There is a lot of really bad information posted in these posts . A lot of conclusions based on bad data . First , If T-guy's bore is really .319 -.321 , he either did a bad bore measurement or his bore is totaly worn out to almost a smooth bore . If it is a smoothbore it will not make near the pressure a bore with rifling will . If he measured it wrong and it is really a .312 - .325 Bore , it will again make less pressure . What Greek ammo was used , a .323 dia sS bullet or a .321 dia S bullet ? That will make a differance . The Turk ammo was a copy of the German S ammo , it has a .321 dia main body bullet [ Not a .323 ] . That ammo WAS designed to be fired in the Gew-88 rifle by the Germans and they fired millions of rounds of it in their Gew-88's . The Turks did also . It will not cause "extra" bore wear . The Germans measured and marked the rifles land size during the 05 conversion and most Turk Gew-88's are still right on . These rifles had been fired with S ammo before WWI , during WWI and some after by the Turks before we got them . All of that being stated , I would not use too much Turk ammo in a Gew-88 for several reasons . There is no need for that power now , Some Turk ammo has seemed to have got " stronger" over the years of unknown storage , The rifles are now over 110 years old , and you do not know the abuse history of a rifle . Mr. Haineys ammo info is all wrong , bullet weights , sizes and velocities , also the bore sizes and throat info . Bad info in means incorrect info out . The Gew-88 and Gew-98 have different steel ?, made stronger ? . Some 88's and 98's were made at the same place within 6 months of each other , and they make the steel as strong as they could , not "rated" to a certain cartridge . The Gew-88's receiver is not brittle , it is softer than most . That means you will get a stretch or set back before you get a shattered receiver . The early German problems had nothing to do with the steel or strenght , it is clearly documented as a powder problem . The powder broke down quickly from a progressive burn to an explosion , like going from A slow burning powder to Bullseye [ more like C-4 ] . It all still comes down to what YOUR bore measures . What may be semi-safe in one rifle can be dangerous in another . A rifle with a Turk .312-.325 bore is going let you shoot some ammo that would really hurt a rifle with a .306-316 Czech bore . Also military bullet have a totaly different construction than US make bullets , so they act different and can not be loaded to the same velocities with the same pressures . The Germans NEVER intented the .323 198 grain sS ammo to be shot in a Gew-88 rifle , again if a rifle has a big Turk bore you may get away with it . Between US made jacketed bullets , cast bullets and mild-small dia Romanian surlpus ,,, you should be able to find something to work in YOUR rifle .