Just wondering, with the improved reliabilty with the Piston driven SBRs, is the 1-2 inches worth of velocity worth it when trying to decide between 10 11 or 12" SBR? (Assuming reliablity, dwell time, etc is out of the picture, only compactness vs velocity)
is the BG really gonna know if he’s hit with a mk262 rd coming from a 10" bbl or a 12.5" bbl at about 300-500m
Running a 9.25 POF pistol , just replaced the op rod , but it runs great . Better than a gasser .
Its been on am M16 lower and did nothing but make brass and noise .
It’s worth it.
And yes. If you can aim, the bad guy will know he’s hit.
huh ??
It was your rhetorical question, so perhaps you got the answer you deserve.
Will a BG know if the round has fragmented or mushroomed inside him, or will he bleed out faster due to the more effective external ballistics?
There are so many mitigating circumstances that the question is void. You should never plan on the BG knowing he was hit or dying of instant exsanguination from one or even two rounds. Pick a barrel length based on intended fragmentation range and ammo to be used. Admittedly, I need to take my own advice and do the research to choose a particular type of ammo that I want to use.
I am really confused by this post. So, you have a 9.25" POF pistol. You have had to replace a critical part for some reason (the operating rod), and yet you claim it is “better than a gasser” which I assume you to mean a traditional direct impingement AR system? I’m sorry, but I am not following the logic here.
OP, try giving this thread a read. Some very good info by some very professional sources here as to the effectiveness of MK262 out of a SBR. Bottom line, shot placement is king.
As far as my SBR experience goes , and I know this is a sample size of one, but here is some food for thought. I have an LMT 10.5" upper, LMT Auto Bolt Carrier, and SBR’d LMT lower set-up in a MK18 MOD0’ish clone configuration. The upper was $425, BCG was $115, and lower with the SOPMOD stock was about $380.
I have had the weapon for 6 months and have fired over 3500 rounds of PRVI M855, Wolf, Brown Bear, and Hornady Practice out of it. It gets run HARD in various drills and practice sessions. Usually I fire 200-500 rounds per range session. The weapon gets put away hot, dirty, and wet (the way I like it). The only maintenance I have done on the weapon is I re-lube every 800 rounds or so, but I have yet to clean the weapon. That’s right, thousands of rounds of the dirtiest ammo available, and no cleaning whats so ever.
Guess what? I have yet to experience a single failure of any sort. The weapon has been 100% reliable. I mean, it is boringly reliable. I have had to simulate/replicate failures for immediate action drills.
I follow the simple guidelines for keeping a DI AR running well. Keep it wet, and use quality magazines (P-Mags).
You’ll get a slight velocity benefit with a 12" barrel over 10.5".
I don’t think it is worth worry about, however. Both are viable barrel lengths. Focus on putting shots where they need to be
I’d recommend you use a chamber brush after Wolf/steel cased ammo, I’ve seen the sticky carbon build up in a chamber with a bore scope. Other than that lube and shoot.
I hear ya. I have seen the carbon build up have as well Todd, and I have stuck a brass case in an LMT chamber (on my 14.5" gun) after a lot of Wolf went through it without a chamber brush.
I am basically trying to run the gun with copious amounts of Wolf and Hornady Practice until I experience a malfunction. At which time I will clean, detail strip, inspect and note any areas of concern.