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Thread: 6.5 Creedmoor range report

  1. #1

    6.5 Creedmoor range report

    Saturday, I finally had time to get to the range and shoot some with the new Ruger American Predator in 6.5: http://forums.gunsandammo.com/showth...eedmoor-(Pics)

    and do some dialing in with the DPMS LR-308 with some new ammo and do some tests with suppressor on and off.

    First, I wanted to let Zee know that on my LR-308 when I put on the suppressor, the POI shift was 1/2" down. I find that acceptable on a hunting rig.

    Next, it was time to get serious on the Ruger 6.5. All I had was one box of the Reminton 140 grain core locked that I was mostly wanting to turn into empty brass that I could load when I get the dies, and see if I could go out and use this on one of the last weekends of deer season. I fired one round at 50 yards, adjusted the scope, ran the target out to 100 yards, fired another, and adjusted the scope. Fired to confirm, and had it sighted in. Now, I snugged in on the rifle, sandbagged the toe of the stock and fired a 4 shot group. Why 4? Because thats all the magazine holds.

    group.jpg
    Holy Crap. Sub MOA. Right out of the box with the cheapest ammo I could find and the flimsy forend on a cheap bipod. The one 'flyer' was the very first shot in this group, and I'm not sure if that was me or if the stock was making contact with the barrel, or what. I fired a few more groups, and got very similar results. Then I screwed on the suppressor and fired two shots to check POI shift.

    drop.jpg

    4" drop at 100 yards. Damn, thats a lot. However, it matches the 300 yard hashmark in the scope reticle, so that is doable for hunting suppressed.

    When I removed the suppressor, it shot 2 rounds a half inch high, then settled down to put them all in the bullseye. I really think that the stock being so flimsy is causing that. I need to decide what I am doing with the stock... There are 3 options
    MDT Chassis: https://mdttac.com/products/lss-chassis-system
    Pro- Rock solid, good reviews, changes to AICS style mags
    Con- $400 and you still have to buy the tube, buttstock, grip, and mag. Makes it unergonomic to get to the tang safety

    Magpull Hunter: https://www.magpul.com/products/fire...n-short-action
    Pro- Affordable, adapts to AICS mags, comes with one mag
    Con- Trusted reports say the fore end is flimsy, and the stock is ugly

    Boyd's AT-One: https://www.boydsgunstocks.com/at-one
    Pro- Affordable, adjustable, rock solid
    Con- Heavy, and keeps the cheese ball Ruger magazines


    In summary- If you are looking for an accurate, affordable bolt gun, you should get one of these.

    I'm off to Cabela's to get some more of that Remington ammo.
    To make something simple is a thousand times more difficult than to make something complex.
    -Mikhail Kalashnikov

  2. #2
    Senior Member bisley's Avatar
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    Re: 6.5 Creedmoor range report

    Wow! That's impressive. Keep us posted when you start to stretch out the range with your own loads. They will probably be even more consistent.

  3. #3
    Senior Member Zee's Avatar
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    Re: 6.5 Creedmoor range report

    I experienced the same thing with a .30 cal suppressor last week. Put it on a .308 Win and experience minimal shift. Put it on a .260 Winchester and had a 3” drop in POI.

    Took the the can off and first shot was 1.5” high. Then, back to zero.

    Now, you having similar results has me wondering.........
    "To Hell with efficiency, it's performance we want!" - Elmer Keith

  4. #4
    Senior Member bisley's Avatar
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    Re: 6.5 Creedmoor range report

    Something to do with extra heating/cooling?

  5. #5
    Senior Member Jeff in TX's Avatar
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    Re: 6.5 Creedmoor range report

    Quote Originally Posted by Zee View Post
    I experienced the same thing with a .30 cal suppressor last week. Put it on a .308 Win and experience minimal shift. Put it on a .260 Winchester and had a 3” drop in POI.

    Took the the can off and first shot was 1.5” high. Then, back to zero.

    Now, you having similar results has me wondering.........
    Great groups, I can't wait to get the LH predator I order last week in 6.5 CM!

    If I add my .30 cal suppressor to my .243 win, my POI is 2" low. I'll dial up 8 clicks and I'm good.
    Distance is not an issue, but the wind can make it interesting!

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    Re: 6.5 Creedmoor range report

    Go get that gun bloodied.

  7. #7
    Member shooter10mm's Avatar
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    Re: 6.5 Creedmoor range report

    Hmmmm.........I put an AAC muffler on my bolt 6.5 Ruger Predator that was shooting 3/4" groups at 100 dead on, put the can on and got groups 5 inches low and right a tad. Had POI shift on a Remington 700.308 3 inches low also...... But every semi auto I run with the can is dead on?? No freaking changes at all? What the heck?
    "You miss 100% of the shots you do not take!"
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  8. #8

    Re: 6.5 Creedmoor range report

    Quote Originally Posted by Weatherby View Post
    Go get that gun bloodied.
    I may be doing that this weekend.
    To make something simple is a thousand times more difficult than to make something complex.
    -Mikhail Kalashnikov

  9. #9
    Senior Member orchidman's Avatar
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    Re: 6.5 Creedmoor range report

    Great Shooter.

    Did you chrony the loads to see what difference in velocity you were getting with the suppressor on?

    All my rifles change their POI when I use a suppressor. After I sight them in sans suppressor I take the turret caps off, loosen the lock screws and turn the indicators to '0'.
    I then fit the suppressor and resight the rifle at the same distance, dial it 'up' and mark the dials with an 'S' so I know that it is 'on' with the suppressor attached.

    When I head out hunting without the suppressor I simply return the scope to '0'........if I am going to use the suppressor I 'dial' it up to 'S' and I am good to go.
    Still enjoying the trip of a lifetime and making the best of what I have.....

  10. #10
    Senior Member Zee's Avatar
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    Re: 6.5 Creedmoor range report

    I’m not worried that there is a shift in POI. I’m curious why we are seeing a greater shift when a 6/6.5 cal goes through a .30cal.
    "To Hell with efficiency, it's performance we want!" - Elmer Keith

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    Nice. Just picked up the 223 version of that rifle. Got some scope mounting to do...

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    Senior Member shotgunshooter3's Avatar
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    Nice!

    On the subject of a new stock: I like every chassis system I've tried that DOESN'T use an AR buffer tube. Piss poor cheek riser options on traditional carbine butt stocks, and usually LOP is way too long using traditional choices such as the MagPul PRS. As such, while the MDT is a solid option I strongly urge you to go handle a Savage Stealth before committing.

    Maybe you'll get fortunate and KRG will introduce their Bravo chassis/stock for the American.


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  13. #13
    Senior Member cpj's Avatar
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    Re: 6.5 Creedmoor range report

    The Boyd's at one can be fitted for a AICS mag.
    Quote Originally Posted by Zee View Post

    I'm here for the guns, hunting, and skirt wearing men.

  14. #14

    Re: 6.5 Creedmoor range report

    Quote Originally Posted by cpj View Post
    The Boyd's at one can be fitted for a AICS mag.
    How does that work?
    To make something simple is a thousand times more difficult than to make something complex.
    -Mikhail Kalashnikov

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    Senior Member cpj's Avatar
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    Re: 6.5 Creedmoor range report

    Quote Originally Posted by bullsi1911 View Post
    How does that work?
    You send it to the place with $200 and they send it back to you. Timc had it done.
    Quote Originally Posted by Zee View Post

    I'm here for the guns, hunting, and skirt wearing men.

  16. #16
    Senior Member cpj's Avatar
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    Quote Originally Posted by Zee View Post

    I'm here for the guns, hunting, and skirt wearing men.

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    Is your barrel free floated? Mine is touching a bit and I may be reaching for sander.

  18. #18

    Re: 6.5 Creedmoor range report

    Quote Originally Posted by cpj View Post
    You send it to the place with $200 and they send it back to you. Timc had it done.
    That quickly turns it into one of the most expensive options. BUT.... it's something I could do later, just ship them my stock and have it cut in.
    To make something simple is a thousand times more difficult than to make something complex.
    -Mikhail Kalashnikov

  19. #19
    Senior Member snake284's Avatar
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    Re: 6.5 Creedmoor range report

    Not that you don't want or need another stock, BUT, did you check to see if the factory stock is free floated? You know the drill, run a dollar bill down under the barrel to the chamber area. If it moves freely it's free floated. OK I know you know that, I'm just talking this through as I'm thinking it out. If the barrel doesn't touch the stock anywhere all the way to the chamber area, then the flimsiness of the stock shouldn't make any difference. Only if it is so flimsy that it can be inadvertently pushed with very moderate pressure and made to touch the stock while shooting. Your inaccuracy could be caused by where the stock contacts the recoil lug and where the action ring lies in the the stock it isn't a tight secure fit. But a little bedding would cure that. If the action and first two or three inches of barrel is a good tight fit, as long as the barrel doesn't touch the stock the flimsiness of the forend is not creating your problem. I've got a couple rifles with flimsy fore ends that are better than MOA, but they're bedded in around the recoil lug and action ring nice and tight and the stock does not touch the barrel anywhere.
    Last edited by snake284; 01-09-2018 at 01:34 AM.
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  20. #20

    Re: 6.5 Creedmoor range report

    Quote Originally Posted by JKP View Post
    Is your barrel free floated? Mine is touching a bit and I may be reaching for sander.
    mine touches some on the left hand side. I MAY just goof with the factory stock and wait until after SHOT show and see if anyone comes out with a better option.
    To make something simple is a thousand times more difficult than to make something complex.
    -Mikhail Kalashnikov

  21. #21
    Senior Member cpj's Avatar
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    Re: 6.5 Creedmoor range report

    Quote Originally Posted by bullsi1911 View Post
    That quickly turns it into one of the most expensive options. BUT.... it's something I could do later, just ship them my stock and have it cut in.
    Just an option for discussion. And, I need someone to guinea pig that stock.
    Quote Originally Posted by Zee View Post

    I'm here for the guns, hunting, and skirt wearing men.

  22. #22
    Senior Member snake284's Avatar
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    Re: 6.5 Creedmoor range report

    Quote Originally Posted by bullsi1911 View Post
    mine touches some on the left hand side. I MAY just goof with the factory stock and wait until after SHOT show and see if anyone comes out with a better option.
    Whether you buy another stock or not, you should work through the problems and eliminate them as you go, because the inaccuracy may not be caused by the stock. Or it could be something as simple as stock bolt torque.
    Daddy, what's an enabler?
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  23. #23
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    Quote Originally Posted by bullsi1911 View Post
    mine touches some on the left hand side. I MAY just goof with the factory stock and wait until after SHOT show and see if anyone comes out with a better option.

    Already sanded mine some. It is now barely floated but I think I will probably get more aggressive with the sanding.

  24. #24
    Senior Member JasonMPD's Avatar
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    Re: 6.5 Creedmoor range report

    Quote Originally Posted by Zee View Post
    I experienced the same thing with a .30 cal suppressor last week. Put it on a .308 Win and experience minimal shift. Put it on a .260 Winchester and had a 3” drop in POI.

    Took the the can off and first shot was 1.5” high. Then, back to zero.

    Now, you having similar results has me wondering.........
    Using sub-calibers to your suppressor can allow for high velocity gas bypass of the bullet near the blast baffle. That can affect bullet stability a small bit. It’s not always the culprit, but can have some effect.
    “There are three kinds of men. The one that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves.” – Will Rogers

  25. #25

    Re: 6.5 Creedmoor range report

    Quote Originally Posted by cpj View Post
    Just an option for discussion. And, I need someone to guinea pig that stock.
    I saw some reports online that there is no bedding at all in the boyds AT one stock. Not sure how that will work with the Ruger V-blocks, so I just emailed to see if thats true, and if there will be any option in the future to switch from the American magazines
    To make something simple is a thousand times more difficult than to make something complex.
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  26. #26
    Senior Member cpj's Avatar
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    Re: 6.5 Creedmoor range report

    Quote Originally Posted by bullsi1911 View Post
    I saw some reports online that there is no bedding at all in the boyds AT one stock. Not sure how that will work with the Ruger V-blocks, so I just emailed to see if thats true, and if there will be any option in the future to switch from the American magazines
    It will have the same metal blocks as the factory stock. Just like they do with the Savage Axis stock.
    Quote Originally Posted by Zee View Post

    I'm here for the guns, hunting, and skirt wearing men.

  27. #27
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    Re: 6.5 Creedmoor range report

    That Boyd's AT One may be in my future...firing up the Dremel on the factory stock this afternoon.

  28. #28
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    Re: 6.5 Creedmoor range report

    I won't describe it here but there is an easy trigger mod that you can find online. Brought mine down from 4 lbs (lowest the adjustment screw would provide) to 2.5 lbs. Of course any mod is at your risk...(pun intended).

  29. #29
    Senior Member cpj's Avatar
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    Re: 6.5 Creedmoor range report

    Quote Originally Posted by JKP View Post
    I won't describe it here but there is an easy trigger mod that you can find online. Brought mine down from 4 lbs (lowest the adjustment screw would provide) to 2.5 lbs. Of course any mod is at your risk...(pun intended).
    Same one I did on my American rim fire, I believe. Pretty sure the triggers are the same between center and rim fire. Made a nice trigger, takes 5 minutes, and can be put back to factory specs easily. No permanent modifications needed.
    Quote Originally Posted by Zee View Post

    I'm here for the guns, hunting, and skirt wearing men.

  30. #30

    Re: 6.5 Creedmoor range report

    Quote Originally Posted by shooter10mm View Post
    Hmmmm.........I put an AAC muffler on my bolt 6.5 Ruger Predator that was shooting 3/4" groups at 100 dead on, put the can on and got groups 5 inches low and right a tad. Had POI shift on a Remington 700.308 3 inches low also...... But every semi auto I run with the can is dead on?? No freaking changes at all? What the heck?
    A suppressor and barrel are always machined true but not to one another. A few thousands deflection from machining out of eccentricity adds up down range.

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