10-23-2018, 02:27 AM
I’ve got the heavy barrel profile 16” carbine gas J&T Distributing/DS 6.5 Grendel and it is really a good shooter. I to would prefer a midlength gas system now but I built the 16” 6.5 Grendel to match my 16” duty rifle. The only issue with the 16” carbine gas I’ve encountered is it short strokes with my reloads using 123 grain bullets and CFE223 powder. I guess the CFE223 powder is just slow burning enough it throws off the dwell time with the CG 16” barrel. I shot the same load in my 12” carbine 6.5 Grendel with no issue. Other than the one issue with CFE223 reload my J&T has been gtg. I’ve shot the same load of CFE223 in 16” midlength, 18” midlength 20” and 24” rifle gas system AR-15’s without issue.