User Panel
User Panel
User Panel
|
Posted: 10/11/2017 6:48:07 PM EDT
[#1]
  
|
|
|
|
Posted: 10/11/2017 7:44:03 PM EDT
[#2]
Thanks! So what I'm gaining from this is its normal for that amount of tumble/yaw
|
|
|
|
Posted: 10/11/2017 7:59:57 PM EDT
[#3]
Push it out to 100yds and see what happens
|
|
|
|
Posted: 10/11/2017 9:19:05 PM EDT
[#4]
Quote HistoryQuoted:
Thanks! So what I'm gaining from this is its normal for that amount of tumble/yaw I'll respectfully disagree with McCantu as well.............. if the bullet is sideways............. that is not just normal yaw............... PS........... Unless my computer is chopping up your pictures............ McCantu...... he is shooting "M193" not M855. |
|
|
|
Posted: 10/11/2017 10:35:15 PM EDT
[#5]
Yeah not normal at all. Wolf gold is good ammo and it should shoot well in your barrel.. Make sure your barrel and brake is tight, I do t think thats the issue but I would check to be sure. Make sure your brake is not having rounds contact it. Try switching ammo as it is possible your barrel just does not like that ammo. Next time out try some XM193 and XM855 and see how that shoots and report back.
|
|
|
|
Posted: 10/12/2017 6:45:09 AM EDT
[#6]
Going to pick up some federal xm193 today and shooting tomorrow. Will report back. Verified last night barrel and brake are still torqued to spec
|
|
|
|
Posted: 10/12/2017 7:55:17 AM EDT
[#7]
Quote HistoryQuote HistoryQuoted:
and had a perfect hole of the round sideways you have something wrong |
|
|
|
Posted: 10/12/2017 8:36:57 AM EDT
[#8]
Quote HistoryQuoted:
Not what op is describing you have something wrong |
|
|
|
Posted: 10/12/2017 1:16:25 PM EDT
[#9]
You may have copper fouling, IDK. Use a copper bore brush to scrape out hard grime, not a nylon bore brush.
I have a 18 inch DD ProV11 and it hates Hornady 55gr soft points (3 or 4 MOA). The Hornady 55gr FMJ is fine (1.5 MOA). 80.5gr Bergers shoot great (3/4 MOA). So it could be the bullet. |
|
|
|
Posted: 10/12/2017 2:06:26 PM EDT
[#10]
Quote HistoryQuoted:
Going to pick up some federal xm193 today and shooting tomorrow. Will report back. Verified last night barrel and brake are still torqued to spec |
|
|
|
Posted: 10/12/2017 2:09:24 PM EDT
[#11]
How many rounds through the barrel?
There are too many variables for us to diagnose it over the web, but a shot out or defective barrel is at the top of the list. |
|
|
|
Posted: 10/12/2017 2:10:18 PM EDT
[#12]
Quote HistoryQuoted:
Thanks for the great advice... |
|
|
|
Posted: 10/12/2017 2:27:45 PM EDT
[#13]
Quote HistoryQuoted:
Any damage to the crown? |
|
|
|
Posted: 10/12/2017 8:26:51 PM EDT
[#14]
Quote HistoryQuoted:
Going to assess it tonight, and also clean the piss out of it as well. Going to pull the brake, and fire without it to see if it changes. Also have some 77gr ppv hpbt that I'll test out tonight. Worst case I'm thinking the crown. And approx 500 rounds through it Carefully look at bore, muzzle and all that attach to the muzzle. Any chance of chrono'ing the ammo............... see if there is a huge ES................ ? ? Carefully measure the ammo you have left? Somehow an odd bullet (under size) got in??? |
|
|
|
Posted: 10/12/2017 9:18:53 PM EDT
[#15]
Quote HistoryQuoted:
Do all that............ though you'd think if the bullet was striking the brake, it'd #$%^ all the shots. Carefully look at bore, muzzle and all that attach to the muzzle. Any chance of chrono'ing the ammo............... see if there is a huge ES................ ? ? Carefully measure the ammo you have left? Somehow an odd bullet (under size) got in??? I don't have a chrono, I wish I did And was also thinking of undersized ammo. So going to shoot 75gr tomorrow |
|
|
|
Posted: 10/13/2017 11:07:08 AM EDT
[#16]
So the crown, barrel rifling, and brake are all still 100% okay. Headed to shoot now, going to use 2 other different ammo, and with and without muzzle device
|
|
|
|
Posted: 10/13/2017 11:16:18 AM EDT
[#17]
If possible .. measure the diameter of the Wolf bullets... maybe a sample size of 5 , preferably 10.
And do you have photos of the sideways bullet strikes ? It is possible they are undersized slightly and aren't getting "gripped and then stabilized" properly by the barrel. You guys might like enjoy this ( on a side note...slow bullets yawing on target. ) https://rifleshooter.com/2017/09/shooting-groups-with-tumbling-bullets/ |
|
|
|
Posted: 10/13/2017 3:27:40 PM EDT
[#18]
Quote HistoryQuoted:
Thanks for the great advice... 
|
|
|
|
Posted: 10/13/2017 4:36:22 PM EDT
[#19]
Update
Cleaned the barrel this morning, and removed the brake. Shot at 25m on cardboard to start with 77gr hpbt ppv ammo and had no tumbling rounds with or without the brake on. Moved back to 100m and had zero issues. Put the wolf back in, and again had no issues out of 60 rounds. So I'm either thinking the barrel was heavily copper fouled, which is hard to think considering only about 300 rounds have been through it. Or like you guys mentioned, the Bullet size was on the small side and wasn't catching the rifling. I'll try and get some measurements here in a bit Thanks for all the input! |
|
|
|
Posted: 10/13/2017 5:13:06 PM EDT
[#20]
Quote HistoryQuoted:
Update Cleaned the barrel this morning, had no tumbling rounds with or without the brake on. 
|
|
|
|
Posted: 10/13/2017 7:09:22 PM EDT
[#21]
Quote Historypretty much!
Haven't ever had a barrel foul up in so few rounds. Have 2k through my BCM barrel |
|
|
|
Posted: 10/14/2017 10:39:57 PM EDT
[#22]
I have a hard time believing it was fouled bad enough to make rounds keyhole after only 300 rounds.
Anyway, good luck, hope you have it fixed. |
|
|
|
Posted: 10/15/2017 9:48:46 AM EDT
[#23]
The bore would have to be rough as sand paper to cause it to foul that bad ... you would feel it when you cleaned it.
|
|
|
|
Posted: 10/15/2017 3:05:32 PM EDT
[#24]
Maybe just a new barrel breaking in or burrs in rifling causing instability. After more rounds and a good cleaning it may have smoothed things out. Could just be that ammo was out of spec like a small bullet or OAL was too short.
|
|
|
|
Posted: 10/16/2017 10:48:29 AM EDT
[#25]
I would think it was a problem with the bullet, but if it was, it seems like we would have heard of it, there's a ton of Wolf Gold floating around.
I still don't think fouling or burrs could cause tumbling. OP, were you on a designated range, or shooting across a pasture? I've had trouble before when I let the grass and weeds get out of control on my "range". 
|
|
|
|
Posted: 10/23/2017 7:49:23 PM EDT
[#26]
<pure speculation> Taking off the brake could have knocked off crud that was encroaching on the crown and causing random rounds to tumble. It could also have knocked out gunk collected within the brake that was also somehow impinging on the bullet/barrel gas. Or the brake could have been somehow installed oddly...
If taking off the brake and “just cleaning” the barrel (even “thoroughly” cleaning it) fixed the problem, that’s a good thing. But it also says you should pay attention to how often you clean that barrel, because something caused it to goof up after X rounds. |
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
