Long Range Rifle/Scope/PRS question(s)

Discussion in 'Rifle Country' started by Walkalong, Dec 21, 2018.

  1. Legionnaire
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    Legionnaire Member

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    So I have some scope questions. Rather than extend this thread, I'd appreciate responses be posted here (link). Thanks.
     
  2. MarshallDodge

    MarshallDodge Member

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    Good to know that Walkalong had success with RL15. I have 12 pounds of it and only 4 of Varget.

    Anybody read up on the new RL15.5?

    I think that I am going Dasher as I am hearing about feeding issues both here and from others about 6GT. I was also considering 6BRA but it seems like those need to be pushed harder.

    What mags are you guys using for Dasher?
     
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  3. Varminterror

    Varminterror Member

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    Dasher, BRA, or GT, any of them can have the same feeding issues. GT is less likely than the other two, since it’s a longer cartridge.

    Personally, I find it to really be a matter of tuning your mags to feed. I’ve ran Dasher out of standard mags without choking, and the GT is only easier... or any of them can choke, even out of blocked mags. Center feed, blocked mags are the least likely to choke with any of them, but it’s really a matter of making sure your feed lips are holding the round at the appropriate angle during the feed stroke.

    I like AW mags and MDT 12rnd mags for PRS. The AW mags are short, so I can get low and close, and when I need extra rounds for certain stages, the MDT 12 round mags feed smoothly. AICS mags are the gold standard. ARC will choke on dust. Pmags will choke on air - absolute no go for me.
     
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  4. Walkalong

    Walkalong Moderator Staff Member

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    The mags with the back spacer are intended for the 6 BR class of cartridges, 6 BR, 6BRA, 6 BRX, etx. 6GT uses standard AICS type mags. Mt buddy Jeff had trouble with his first AICS "type" mag (Don't remember which brand), but he had "tweaked the feed lips. He bought an Accurate brand AICS type mag and his 6 GT has feed flawlessly from it in his Axiom action in an MDT chassis.

    My AICS .308 mag with the Primal Rights spacer runs Dasher 100% in my Impact, as does my MDT 12 round Dasher mag. Holds 12 in the same height as ten in the standard AICS mag/spacer kit.

    AICS/Primal Rights Dasher kit Mag
    AICS .308 Mag With Primal Rights 6 Dasher Spacer Kit.JPG

    MDT 12 Rd Dasher Mag
    MDT 6 Dasher Mag Pic 1.JPG

    I'm not a big believer in playing with feed lips.
     
  5. MarshallDodge

    MarshallDodge Member

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    @Walkalong - The bottom mag is a single stack or AW?

    6x47L feeds beautifully from the Magpul mag in both of my rifles but I have never run them hard.
     
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  6. Varminterror

    Varminterror Member

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    The bottom in his post is a 12 round MDT magazine. It’s a center feed stagger stack, like all short action AI pattern mags. AW mags are stagger feed, so the top round only touches one mag lip at a time, not both, as pictured.
     
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  7. Varminterror

    Varminterror Member

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    L —> R: Blocked AW, blocked 12rnd MDT, standard ARC, standard AICS. You can see, all of them are wide body mags, such they are stagger stack - AW more staggered than the rest - but only the AW mags are stagger feed. The others are all center feed. Easier loading AW mags, pop in like AR mags, while center feeders have to be slipped front to back like a Pistol mag. But if you drop an AW mag, occasionally all of the rounds spray out, since it doesn’t have the top round securely held by both lips.

    41DBF7F1-5D9D-487E-A6AF-2BE1D289452D.jpeg
     
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  8. MarshallDodge

    MarshallDodge Member

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    Good pics, thanks.

    I would think that extending the feed lips forward would help.
     
  9. Walkalong

    Walkalong Moderator Staff Member

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    As @Varminterror posted, MDT 12 rounder, slight stagger under the center fed top round to make it the same height as a standard AICS 10 round.
     
  10. GoldieMI
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    GoldieMI Contributing Member

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    I have the AICS with Primal Rights Spacers in mine- Green Followers is what I just got from PR - so easy for me to identify...since they are the only green follower magazines I own.
    still waiting for MDT to ship the 12 Rounders, I ordered in Jan, they are forecasting Mid May on the last update.
     
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  11. MarshallDodge

    MarshallDodge Member

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    Thanks guys for all the input.

    Despite the 10-15MPH varying winds today, I took the Bergara out for some fun.

    At 25 yards- 5 shot group with a cold bore shot, Aguila Super Extra Lead
    20210417_130805.jpg

    2nd group
    20210417_130800.jpg

    Federal Gold Match
    20210417_130755.jpg

    And then I moved the target to 50 yards, all Federal Gold Match
    20210417_131713_compress63.jpg

    20210417_131704.jpg

    Not a great showing at 50 but considering the wind was blow so hard that the target backer was fluttering, I'll take it as a good start :cool:
     

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  12. Walkalong

    Walkalong Moderator Staff Member

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    Sweet! I don't have any match grade .22 LR right now, and won't until the prices get back to normal.
     
  13. GoldieMI
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    GoldieMI Contributing Member

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    Shoot the PRS match today (my first)
    Lake City Michigan - MTC
    28 Degrees - snowing - and 12-15mph winds
    39th out of a field of 56th but more importantly: had fun and got 42.5% of my hits. The Dasher did well today all the way out to 1048 yards
     
  14. taliv

    taliv Moderator Staff Member

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    That’s awesome Goldie!! Congrats
     
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  15. Walkalong

    Walkalong Moderator Staff Member

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    That’s awesome!

    Snow? :D
     
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  16. GoldieMI
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    GoldieMI Contributing Member

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    Wasn't in the forecast lol....but Mother Nature woke up in a bad mood.
     
  17. Varminterror

    Varminterror Member

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    Been wild this spring. We got dusted with snow at the end of last week and overnight lows in the 20’s, and we’re expecting a high of 87 today.

    Big change in density altitude between practice sessions a couple days apart!
     
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  18. Walkalong

    Walkalong Moderator Staff Member

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    My buddy Jeff and I are going to shoot at Blakely Sat. I gave (loaned) him 130 Alpha Dasher cases to shoot his new Dasher at Altus, but his Whidden dies still aren’t here, so guess who had to size them. I went ahead and chamfered/deburred them as well.
    D001171B-D77A-4788-889D-C50042F5AA5C.jpeg 65773150-256B-484E-8071-4F1C7F5F496A.jpeg
     
  19. Walkalong

    Walkalong Moderator Staff Member

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    We are a great deal more apt to see this than snow.
    Range Day with PT-132.jpg
    7-10-2011 @ 4 PM.jpg
     
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  20. C-grunt

    C-grunt Member

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    Ive said it many times. Ill take my 118 degrees with 8 percent humidity over 95 degrees with 50 percent humidity any day of the week.
     
  21. MarshallDodge

    MarshallDodge Member

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    That humidity seems on the low side :D

    A 6mm Dasher prefit barrel, 300 cases, and dies are on the way to me from another PRS shooter who has gone to 6GT :cool:

    I have a good amount of RL15, 8208, and SW Precision to load with. I'll probably start with the Precision using 110 SMKs and go from there.
     
  22. Walkalong

    Walkalong Moderator Staff Member

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    A few years back we went with kids to a baseball tournament in Texas in August, it was just that, like an oven, vs the sauna here. Not dripping sweat like you do here. It evaporated too fast.
    Well, actually... yep, it gets a lot worse. :)
     
  23. Walkalong

    Walkalong Moderator Staff Member

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    I checked zero and got my velocity at 78 degrees after work today, all I had was cool weather velocity (2840 @ 60 degrees) It ran 2904, 2906, & 2906 at 78 degrees today. I trued my BC at 1000 yards, and I am ugrading the Kestrel (66% done) after inputting the new temp/velocity in the Kestrel App on my phone. I hope it doesn't wipe out my gun profile this time, like it did before. When I started the transfer, it said it might. Oh joy. :)
     
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  24. taliv

    taliv Moderator Staff Member

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    65 fps faster for 18 deg temp change? Ouch
    Never seen a powder that bad. I suspect something else is going on
     
  25. Walkalong

    Walkalong Moderator Staff Member

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    Dunno, struck me that way too, but I know it has bit me in the butt before. I figured out how to add both temp/velocities straight into the Kestrel and turn the MV on. Upgrading the Kestrel wiped the saved gun out. Overall I feel better about my dope now. Truing the BC has to help, I have been a little high at around 1K and out the last two times out with the new powder lot/charge/lower velocity (or was it?) Might bump the 60 degree FPS up, might not.
     
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