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  1. #16
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    Quote Originally Posted by Jerry R View Post
    The problem I have with this whole situation is, the can works (on this pistol) with super-sonics ... no stringing, and good groups. Only the subs string. One of the other shooters suggested turbulence due to projectile speed; but not enough to cause a baffle strike. Interesting problem, and I'm not sure it can be "fixed". I may have to stick with supers on the 8.5" and use the subs on the 11.85" (which groups well, without stringing - same type mount.)
    I missed this before. Seems like that barrel may just not like subs. Why that's the case could be explained by your other shooters, as that's beyond my knowledge, but that might be the issue.

  2. #17
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    Quote Originally Posted by gatordev View Post
    Seems like that barrel may just not like subs.
    Actually, groups great with subs ... without the can. Target is nothing but groups of the subs with and without the can. This is way above my pay grade too.
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  3. #18
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    Quote Originally Posted by Jerry R View Post
    Actually, groups great with subs ... without the can. Target is nothing but groups of the subs with and without the can. This is way above my pay grade too.
    I got nothin'.

  4. #19
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    The hexagonal baffle apertures are...baffling...me lol

    AACs baffles on the inside are manufactured odd and angled due to the process they use, which isnít finalized with a round wire EDM...the Mini 4 I have in jail looks mostly round but has some small angles I can see once I zoom in and brighten it

    Iíd email their C.S. and maybe see if theyll pay for you to send the upper + can in

  5. #20
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    Opened a ticket with AAC. Initial question from them was twist rate, and comments on stabilization. I detailed the events, added the target photo and video link in my reply. This was their response:

    Name:  2019-11-01_14-09-22 AAC Response.jpg
Views: 48
Size:  38.5 KB

    I explained that we tried three different weights, which were three different brands, and told them to close the ticket.

    Oh, well.
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  6. #21
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    I suspect it is just harmonics. As I've gotten into reloading over the past couple of years I've been surprised to learn how much POI can shift laterally with different loads (i.e., a few inches of lateral shift from changing only the charge by a grain or two)

  7. #22
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    Sounds like a magic combination of weight, twist rate and velocity, all interacting in a bad way. As mentioned, harmonics and damping effect by adding the silencer can lead back to the barrel as the main agonist in this combination of poor ballistics. I haven't seen a benefit to having a barrel under 10" (Increased concussive force, increased muzzle flash, increased unburnt powder, etc.), other than the blackout powder allegedly burns off within 8" and I haven't seen velocity-related complaints from the guys shooting 16" .300 B.O.
    There's no "Team" in F**K YOU!

  8. #23
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    Quote Originally Posted by Joelski View Post
    increased unburnt powder, etc. other than the blackout powder allegedly burns off within 8"
    Side note: This one is an 8.5" barrel, and the BCG has a crap-ton of un-burnt powder on it.
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  9. #24
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    Jesus their CS aint what it used to be

    Sold out to big business

  10. #25
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    Quote Originally Posted by Jerry R View Post
    Side note: This one is an 8.5" barrel, and the BCG has a crap-ton of un-burnt powder on it.
    What powder? My 190 subs are dirty, but all the AA1680 seems to burn. This is on an 8.3” with an Omega.

  11. #26
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    Quote Originally Posted by cjd3 View Post
    What powder?
    Unknown ... all factory ammo so far. Lot of brass saved though
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