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    6.5CM AR10/SR25/AeroM5 bullet damage on feeding

    Update: sent the barrel and upper back to BHW and they cut a feed cone in the barrel free of charge. It feeds w/o damaging bullets now. Im very happy with the customer service at Columbia River arms (black Hole weaponry) , tho it should have come with one in the first place. Feeding problem...
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    6.5CM AR10/SR25/AeroM5 bullet damage on feeding

    How does it shoot? What I see is extraction damage from the extractor forcing the loaded case into the barrel extension lugs from extracting a loaded case out of the chamber. Completely normal in an ar platform. If you want to find out for yourself ;to test this you need to punch out the roll...
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    6.5CM AR10/SR25/AeroM5 bullet damage on feeding

    Gen 3 magpul pmags. AeroM5 enhanced upper. its definitely the side of the feed ramp that is still too sharp causing the gouging, you can see a little copper on the U section in one of my pictures and the tips are getting smashed on the back face of the barrel. I can smooth out the feed ramps...
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    6.5CM AR10/SR25/AeroM5 bullet damage on feeding

    So what's the best way to avoid this situation in the first place? Who makes a barrel that works that doesn't cost $700?
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    6.5CM AR10/SR25/AeroM5 bullet damage on feeding

    I polished my feed ramps and all sharp edges in the barrel extension. polished the bcg, bolt face, edges of lugs, extractor, and ejector. I'm still getting the same damage on feeding. See pics. When slow feeding, the bullet goes up the feed ramps and tip hits the back of the barrel and gets...
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    6.5CM AR10/SR25/AeroM5 bullet damage on feeding

    Those things are pretty expensive. I don't really need the extra length in the 6.5CM, tho it would be nice just in case. Are there any other mags that feed reliably and are more affordable? Has as anyone noticed feeding problems with the pmags or is it just a COL issue for the most part?
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    6.5CM AR10/SR25/AeroM5 bullet damage on feeding

    140 eld match there is a 1/8-3/16" gap between the feed ramps and the beveled edge on the inside of the receiver. Almost like the barrel extension is too short. Is that going cause a problem feeding? Should the receiver be ground to match the feed ramps? They're not even the same angle.
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    6.5CM AR10/SR25/AeroM5 bullet damage on feeding

    Im not sure what's up with that pic at the barrel extension to receiver intersection. It does look odd, I'll have to put the barrel back on tomorrow. Here are some picks of the polish barre tho. It's an aero M5 upper, should it have ramps that match the feed ramps? I don't remember seeing any...
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    6.5CM AR10/SR25/AeroM5 bullet damage on feeding

    I recently built a 20" 6.5CM with a blackhole barrel. I noticed on feeding the bullets are badly gouged and tips deformed. I contacted BHW and they said it could be a magazine issue since most mags are designed for 308. Has anyone else seen this issue? If so, what is the solution? im using...
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    Gem Pro 250?

    http://www.accurateshooter.com/gear-reviews/gempro-250-digital-scale-review/
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    Range Report Subsonic Hunting rds

    Outlaw state bullets are great, well worth the $$.
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    Range Report Anyone tried the new Hornady 6.5 147 ELD-M vs 140 ELD-M

    147 ELDM 2758fps 42.0gr H4350 140 VLD 2850fps 43.0gr H4350 26" 1:8 .260rem 147's shoot better for me than vld's in the 260.
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    Range Report Frustrating Ballistics Solution Problem

    Exactly the same, 3.6 mils. That atmospherics don't make anymore than 0.1mil difference at that range.
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    Range Report Frustrating Ballistics Solution Problem

    Zeroed today and shot a group at 270yds (longest I have) without dialing any correction on my scope. See the pics for the results. With a confirmed zero the solution was 0.9mils and I measured a drop of 0.89mils so it appears my problem is solved, at least to 270yds. We'll see what happens in...
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    Range Report Frustrating Ballistics Solution Problem

    No, I'm going to prep all my brass the same and then rezero and record all my info. Running low on H4350 and I have to save enough for an upcoming match so I'm being very stingy with my shots.
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    Range Report Frustrating Ballistics Solution Problem

    I shot a scope tracking drill today, see picture below (ignore crap group on 2 mil line). Seems to be tracking correctly but in doing so I noticed something odd. The poi shifted 0.2 down and 0.2 right. I zeroed the last time I shot and now I'm off the amount I had to shift my zero last time...
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    6.5 creedmor semi-auto bullet selection - what are you shooting?

    building a 6.5 in AR10 (20"). Im planning on shooting the Hornady ELD. What weight bullet works best in a semi auto platform to achieve the most efficient ballistics? Is the extra velocity with the 130gr worth the loss in BC over a 140 or 147. I can't find any info on velocity of these bullets...
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    Range Report Frustrating Ballistics Solution Problem

    I set up a target at 100 yds (measured with a tape) and zeroed. I dialed up 14 mills and shot another group and measured the actual poi shift vs 14mils. I was only off 0.5" over 51" (1% error). I shoot this test on a plumb line and a bubble level on my scope. my problem is that I only have a...
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    Range Report Frustrating Ballistics Solution Problem

    [No message]
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    Range Report Frustrating Ballistics Solution Problem

    [No message]
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