06-26-2020, 06:56 PM
JDub Wrote:I just bought one of these because I just bought a Magnetospeed and felt that my WCI brake would be blasting the crap outta the chrono.
https://www.ebay.com/itm/113315792785
I'll let you guys know how it performs. After browsing this thread, I might buy a converter and then get a .30cal SI Jcomp (which I've had great results with in 5.56).
Anyone have experience using a .30 cal comp with the Grendel?
Don't mean to hijack the thread. JDub let me know how that brake works, because I was thinking of getting one too.
I've read various tests of using a 30 cal brake on a 6.5 and it appears that you would lose only 5% efficiency.
If I agreed with you, then we'd both be wrong.