05-01-2019, 09:30 AM
LRRPF52 Wrote:. . . to purpsoely try to break bolts just to see where it will happen. . . .
Great idea ! But, let's go the route:
"We shoehorned a bigger cartridge into the gun. . . . Now, impose a Grendel geometry, and you are right at the tipping point." --- Bill Alexander < https://www.65grendel.com/forum/showthre...#post75339 >
![[Image: LR55.png]](https://i.postimg.cc/QMHJZL5F/LR55.png)
< https://www.65grendel.com/forum/showthre...post227010 >
![[Image: big-bolt.png]](https://i.postimg.cc/DZND3d8T/big-bolt.png)
![[Image: CMMG-Power-Bolt.png]](https://i.postimg.cc/Kv006DVs/CMMG-Power-Bolt.png)
< https://www.tactical-life.com/firearms/r...5-grendel/ >
Let's challenge both designs:
Using the same barrel length, gas system setup and identical known hot loads, let's test a 6.5mm Grendel-chambered AR-15 against a 6.5mm Grendel-chambered CMMG Anvil: Increase the loads (noting respective velocity increases) with the express purpose of determining the breaking point of the Bolt lugs of the weaker design. Then, continue with the rifle that survived that test, to see how much increased velocity could be obtained. If some 200 fps additional velocity is possible, I think it would be fair to state that we'd opened-up a whole new ball game for an auto-loading 6.5mm Grendel --- the little cartridge that could.

