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Slamfire · January 24, 2012, 09:59 AM

I shoot with buds who compete with the 6.5 Grendel in their AR15 rifles.

They best of them shoot outstanding small groups.

Based on the number of malfunctions I have seen, the 6.5 Grendel is not as reliable in feed as the .223 in the AR mechanism.

One real issue is lug cracking. The AR15 bolt is designed to function with .223 loads. The Grendel has a bigger base and I am certain puts more load on the bolt. The fatique lifetime of the bolt is significantally less than a .223. One bud already has had a cracked lug, and he told me of others who have cracked lugs.

For competitors, this is just the cost of using the round, like rebarreling. They just replace the bolt.

January 24, 2012, 09:59 AM	#9
Slamfire Senior Member Join Date: May 27, 2007 Posts: 5,261	I shoot with buds who compete with the 6.5 Grendel in their AR15 rifles. They best of them shoot outstanding small groups. Based on the number of malfunctions I have seen, the 6.5 Grendel is not as reliable in feed as the .223 in the AR mechanism. One real issue is lug cracking. The AR15 bolt is designed to function with .223 loads. The Grendel has a bigger base and I am certain puts more load on the bolt. The fatique lifetime of the bolt is significantally less than a .223. One bud already has had a cracked lug, and he told me of others who have cracked lugs. For competitors, this is just the cost of using the round, like rebarreling. They just replace the bolt. __________________ If I'm not shooting, I'm reloading.