With all the contoversy as to proper bullet diameter for Winchester's 350 Legend it makes you wonder!
When I developed the .357 Rimless Super Max several years ago , it was based on a .223/5.56 case opened up to accept a .357-8" bullet and trimmed to 1.67". Then I found a source of 5.56 LC unformed brass. NOW, Starline makes that .223 straight brass.
Clymer made a custom reamer for me and I chambered a Green Mountain .35 Cal barrel. After a lot of tweaking and frustration I got this cartridge to chamber and cycle with a reasonable amount of reliabilty in the AR platform. Obviosly the bullet selection left much to be desired. Amost all were pistol bullets.
Now comes the 350 Legend for which Hornady is offering 170gr InterLock Spire Point bullets in .355" diameter. BIG Question here. Are the CMMG barrels .357"or .355"? Are other barrel/upper makers using different specs?
It appears to me the gun came out before all the research was done. Of course this is just my opinion.
I am going to try the InterLock .355 in my .357 RSM rifle. Who knows, it might even feed better and shoot just fine. After all I've shot 9mm 147gr HP in it with superb accuracy for what it is at 2100fps.
I bought a CMMG 350 Legend barrel a while back..................but somehow I really don't know why. Because as they say "Been There, Done That" already!