Posted: 8/24/2025 11:20:08 AM EDT
|
Ok, here is the good, the bad and the ugly. All shots were at 150 yards. ?I did one test load at max book this morning but got side tracked and had to come back after 2 hours to start. Varget 180 Tipped Gameking 308 Win 2.88" OAL Big Horn Origin 20" PVA barrel Shellshock Nas3 Casings ?CCI #200 Large Rifle Primers #1- 46.2 grains (cold bore) 2688/2713/2722 size after 2.0155/2.0190/2.0190 #2- 46.4 grains 2738/2729/2743 size after 2.0180/2.0195/2.0185 #3-46.6 grains 2763/2758/2747 after 2.0178/2.0130/2.0195 #4-46.8 grains 2738/2737/2740 2.0180/2.0135/2.0185 #5-47 grains 2756/2745/2764 after 2.0130/2.0135/2.0185 The casings are absolutely NOT re-sizeable. I tried to neck size 1 and the base tore off leaving the broken case stuck inside my die. It was well lubed. The website says in one spot that they are reloadable but then in their FAQ section it says they are not which I did not know about until today. For non-reloaders these are pretty nice but for me its a NO. My Alpha brass works just as well and some have 15 firings on them. I also missed a picture of group #4 so will.post it up later Attached File Attached File |
|
Attached File Attached File Here is the base that tore off in my die Attached File And the reloading thing Attached File |
|
Actually looking back he's 2 grains over max load. I'll try this same thing with 175 gr match kings and see how they perform. Update- they work very well. I was about to hit 2750 out of my 20" GAP10 with the same 47 gr charge of Varget. No pressure signs to speak of. This is ~250 fps faster than FGMM and 225 faster than PRVI 168 gn with a heavier slug. Groups opened up a bit but were still sub-moa. |
There is nowhere left to go... this is it.
Joined:
May 2004
Posts:
16326
EE: 100% (191)
USA
| I have read/seen many pos that using the sig cases in higher quantities will cause a ring to form the in chamber where the steel/brass junction is. A gouge type of ring. |
"They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety."
Ben Franklin
Ben Franklin
|
Originally Posted By chevrofreak: I did this recently as well. I paid significantly less than the NAS3 cases. https://www.ar15.com/media/mediaFiles/74212/1000015859-3692243.jpg Yeah that’s why I went with the fury cases. They were dirt cheap and I wanted to see how fast I could push M2 AP bullets in my 308. Also have a 16” 6.5 creedmoor and I wanted to see how fast I could push a 147gr bullet. Wish I had the data in front of me but it’s still packed away somewhere from a recent move. Since you have used both which do you like more and do you think one is better than the other for over sammi loads? |
|
Originally Posted By VeritatisUnus: I have read/seen many pos that using the sig cases in higher quantities will cause a ring to form the in chamber where the steel/brass junction is. A gouge type of ring. That wouldn’t surprise me but I also assume at these higher pressures you are just going to wear out a barrel way faster. I haven’t shot enough of them yet but I would guess at 80k psi you are going to halve your barrel life. |
|
Originally Posted By bigtex84: Yeah that’s why I went with the fury cases. They were dirt cheap and I wanted to see how fast I could push M2 AP bullets in my 308. Also have a 16” 6.5 creedmoor and I wanted to see how fast I could push a 147gr bullet. Wish I had the data in front of me but it’s still packed away somewhere from a recent move. Since you have used both which do you like more and do you think one is better than the other for over sammi loads? I've used the Shell Shock stuff in other calibers, but not .308 because I just wasn't willing to pay that price for them. I also haven't fired any of my converted cases yet. |