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Rem .223 AR15 trying to reduce total indicated runout

Frig man!!!! Those are some awesome groups. Heck with he brass! I'd shoot that baby with all the Lapua I could muster. Can't really ask for more than that. SImply awesome!!!!!!!!!!!!!!!!!!!!

Alex
Yes, interesting, but off the subject.
 
this is a.home built .223 wild. just never could get it where i wanted it to be. quit messing with ARs. too hard on brass and it is so much easier to get the accuracy out of a bolt gun



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Yeah those darn ARs will never benefit from bolt gun benchrest reloading techniques. Great shooting man.
 
Do this, take one of your carefully sized and prepared cases, then load it however you like into your ar
Then extract it and measure the Runout.
Yup, this afternoon the zero run-out loads turned into .001-002 runout loads after a single cycle. I didn't bother to check the practice rounds with greater runout. Still, the lower runout rounds printed beautiful waterlines at 200yds (it was a little breezy) and the higher runout rounds shot patterns 3/4moa plus.
this is a.home built .223 wild. just never could get it where i wanted it to be. quit messing with ARs. too hard on brass and it is so much easier to get the accuracy out of a bolt gun Mr. C, I like your sense of humor but I think I will try your other suggestions first. I have a great performing bolt F/TR rig to satisfy the 1000yd stuff. This AR is a safe queen looking for a purpose(varmint, short-range F/TR?). I have the PMA neck turning tool to play with (new cutter angle pending) and AcraLaps for die honing. Plenty to think about and digest.
 
Do this, take one of your carefully sized and prepared cases, then load it however you like into your ar
Then extract it and measure the Runout.
Yup, this afternoon the zero run-out loads turned into .001-002 runout loads after a single cycle. I didn't bother to check the practice rounds with greater runout. Still, the lower runout rounds printed beautiful waterlines at 200yds (it was a little breezy) and the higher runout rounds shot patterns 3/4moa plus.
this is a.home built .223 wild. just never could get it where i wanted it to be. quit messing with ARs. too hard on brass and it is so much easier to get the accuracy out of a bolt gun Mr. C, I like your sense of humor but I think I will try your other suggestions first. I have a great performing bolt F/TR rig to satisfy the 1000yd stuff. This AR is a safe queen looking for a purpose(varmint, short-range F/TR?). I have the PMA neck turning tool to play with (new cutter angle pending) and AcraLaps for die honing. Plenty to think about and digest.

brass prep is so important in consistency to accuracy. prep it like a bench gun. i too use the PMA eck turning tool.

first thing about your experiment. was that runout increased during the loading cycle or on extraction. i actually single load with a bobsled when i am trying to shoot tiny groups.

second thing there may be more going on with the low runout brass then meets the eye. more consistent neck thickness? case volume?

.223 is a small case. sorting by weight or case volume helps. extremely accurate powder charges help a lot.

there are a lot of tricks to assembling an accurate AR. a premium barrel, a heavy walled upper and an excellent trigger are most.important. here is a link from a guy that knows what he is talking about.
http://bulletin.accurateshooter.com/2015/05/what-makes-an-ar-accurate-whitley-offers-answers/

consistency is what is so frustrating with ARs. the only one i ever had that was consistently accurate was the one Robert Whitley built.
 

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