The Firing Line Forums - View Single Post - Another new to me old gun day- Arisaka 38 carbine

ernie8 · November 10, 2019, 02:32 PM

Early T-38 rifle do not have " worn bores " , they were made that way . The groove size was .268 to .270 They switched groove size , and rifling style in the early 30's . Raising a standard die [ made too small to begin with ] for a rifle with an extra over sized chamber will not work as the fired case is still swollen too much to not be sized down .

November 10, 2019, 02:32 PM	#20
ernie8 Senior Member Join Date: October 9, 2018 Posts: 217	Early T-38 rifle do not have " worn bores " , they were made that way . The groove size was .268 to .270 They switched groove size , and rifling style in the early 30's . Raising a standard die [ made too small to begin with ] for a rifle with an extra over sized chamber will not work as the fired case is still swollen too much to not be sized down .