08-10-2018, 02:40 AM
So I have been following this for a bit and decided to take all three of my grendels and see if I could get one of them to make this happen with factory ammo and my handloads.
One lower has jp lowmass bcg and jp scs
Second lower has PF m16 profile bcg and gen 2 scs
Third lower has jp low mass bcg and Tubbs extra power carbine spring and h3 buffer
Tested this with 5,10,24 and 26 round mags made by elander,cpd,asc and the old cp company plus some 5 round pmags.
I used eld-m,sst,fusion,tnt,nbt,ttsx all factory loads plus my 85 grain Trex handloads.
I cycled 5 of each round two times through each mag in each lower and measured each round before and after.
Not one round changed messurment, no matter how I tryed it I couldn't make my gear do what you say yours is doing.
Could it be your just not getting enough neck tention and or getting enough crimp on your loads?
One lower has jp lowmass bcg and jp scs
Second lower has PF m16 profile bcg and gen 2 scs
Third lower has jp low mass bcg and Tubbs extra power carbine spring and h3 buffer
Tested this with 5,10,24 and 26 round mags made by elander,cpd,asc and the old cp company plus some 5 round pmags.
I used eld-m,sst,fusion,tnt,nbt,ttsx all factory loads plus my 85 grain Trex handloads.
I cycled 5 of each round two times through each mag in each lower and measured each round before and after.
Not one round changed messurment, no matter how I tryed it I couldn't make my gear do what you say yours is doing.
Could it be your just not getting enough neck tention and or getting enough crimp on your loads?