Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Hunting > Long Range Hunting & Shooting

Long Range Hunting & Shooting Nightforce Optics


Reply

Hows this for 200 yd 5 shot group?

 
LinkBack Thread Tools Display Modes
  #8  
Old 01-31-2012, 12:54 PM
Silver Member
 
Join Date: Aug 2008
Location: Fort Worth, TX
Posts: 149
Re: Hows this for 200 yd 5 shot group?

Possibly moving in bedding also make sure your bottom metal and mag box are not in a bind putting any preassure at all on the receiver. Make sure the scope bases are not slipping. If you have an aftermarket triggerske sure no part of it is contacting the stock. Just a few things to look at.
Reply With Quote
  #9  
Old 01-31-2012, 01:07 PM
Silver Member
 
Join Date: Dec 2010
Location: Booneville, Ar
Posts: 290
Re: Hows this for 200 yd 5 shot group?

Thank's fellas, I'm considering trying some Retumbo or H1000. The Berger reload data shows a gain of about 100 fps. Have any of yal tried these powders with this round? if so what were yals thoughts? My buddy said he thinks it would be hard to improve on this load. Your thoughts? Thank's, Brad
Reply With Quote
  #10  
Old 01-31-2012, 04:47 PM
Platinum Member
 
Join Date: Dec 2009
Location: 4422′44″N 1082′35″W
Posts: 3,852
Re: Hows this for 200 yd 5 shot group?

Some people will say "hey nice group if you throw out the flier" well you simply cannot. it is there and needs to be addressed. Noone wants a rifle that shoots good most of the time. and from your post its not a cold or clean bore flier, its a random happening. All the more reason to find it and eliminate it.
Assuming all is right in your bedding and scope mounting and this is indeed a true reflection of your rifles performance you need to do some tuning. obviously the rifle is able to put several shots into a nice group, there are a few things I would do. FIRST you need to find out what is causing the Flyer, barrel harmonics? velocity? fouling? I think we can rule out fouling because you said it happens inconsistently might be 1st,3rd, 5th shot etc.. Is he shooting the groups over a proven chronograph? if so what is the ES of the group? do the fliers have a significantly higher or lower velocity than the rest of the group? if so you need to look into eliminating that from the equation, which would include NOT crimping anymore, annealing case necks, maybe switch to bushing dies if you are using brass with consistent neck thickness. Maybe a different primer.
Next Maybe it is in your barrels harmonics, each powder has its own burn rate. that burn rate has an effect on the vibration of the barrel and where it is at in relation to point of aim when the bullet leaves the muzzle. It is possible that specific powder is not the ideal match to your rifle.
Do not over look shooting rest, Boss Hoss can teach you a great deal on this if you PM him and ask him the proper way to set up your rest. Is your barrel free floated or is there upward pressure from the forearm? maybe try slipping paper between the forearm and barrel creating progressively more and more upward force see what that does to your group.
Also shoot larger groups. see what happens with a 10 shot group over the chronograph, and do it several times the more data the better. 5 shots is relatively worthless data in this situation. you need to be able to spot a pattern. So the more you shoot the better. and when you change something only change one thing at a time that way you can use the process of elimination. More than likely this will be something very minor and you will see that flier disappear and your group tighten up. the box or 2 of bullets that it might take to find the problem is a worthwhile investment in your rifles accuracy and your confidence in that rifle
__________________
Mike

Anything less than overkill is underachievement!

" Real elk guns start with the number 3 or bigger and blow two holes, one in and one out." - My Dad
Reply With Quote
  #11  
Old 01-31-2012, 06:42 PM
Silver Member
 
Join Date: Dec 2010
Location: Booneville, Ar
Posts: 290
Re: Hows this for 200 yd 5 shot group?

Thank's Mike, I have run my shots through a chronograph alot. With 54gr of H4831sc I am averaging 3035fps and velocity diffrences are in the 10-30 fps area. though this has made no diff on the flyer as it may be the fastest, slowest or middle of pack. It also did this regardles if the neck was crimped or not. Your also right about 5 rounds not being enough. I have shot 20 or 30 rounds with cleaning and cooling in between only to find the same problem. 14-15 shots waded up with the remaining shots as flyers.
This rifle was rebuilt this summer with a new Kreiger #5 barrel, trigger work, floated barrel and beded action. Ive only run H4831sc and H4350 in it and believe I will try some Retumbo. Maybe that will work. I have always run winchester brass and did use some Remmington 9 1/2 primers but am now using the federal match primers initially to cut down on velocity diffrences which were unaffected by the change in primers but now as they are more availiable where I purchase my reloading gear. Brad
Reply With Quote
  #12  
Old 05-18-2012, 01:34 PM
RTK RTK is offline
Silver Member
 
Join Date: May 2012
Location: Left coast, kalifornia
Posts: 330
Re: Hows this for 200 yd 5 shot group?

What was the final outcome Brad
Reply With Quote
  #13  
Old 05-18-2012, 03:27 PM
Platinum Member
 
Join Date: Feb 2011
Location: Halfway between Lubbock and Dallas
Posts: 4,598
Re: Hows this for 200 yd 5 shot group?

Quote:
Originally Posted by RangerBrad View Post
Hey fellas, a friend that has reloaded for about 18 years has been helping me put together a load for my 25-06. He has my rifle and e-mailed me this pic yesterday. He has tried a few diffrent loads but came back to my original 54gr of H4831sc behind a 115gr berger VLD crimped. Don't know what happened to the flyer but I thought the rest looked good. What say yal? Thank's, Brad

Throw out the flier and it's pretty nice Brad.

You say it's consistent in producing fliers so if it were me I'd be focused on trying to figure out why.

Is the flier consistent as far as 1st, 2nd, 3rd.. . Shot?

I've fount with them for years on different rifles and usually it comes down to a scope/mount issue.

I had an old steel case weaver (beast of a scope) that did this to me on three different rifles until the interior lens finally cracked. Turned out it had been slightly loose since it came from the factory which eventually led to the final failure.

Unequal pressure on the bolt lugs is another problem I found on some rifles. Once diagnosed and fixed (lots of lapping) that problem too was solved.

Another on a 220 swift turned out to be related to inconsistencies in the neck thickness on the brass I was using.

Fliers that are less than 1 MOA don't bother me but outside of that they drive me friggin nuts.
__________________
Without the First and Second Amendments the rest of The Constitution is Meaningless.
Reply With Quote
  #14  
Old 05-18-2012, 03:39 PM
Silver Member
 
Join Date: Jun 2008
Location: Texas
Posts: 347
Re: Hows this for 200 yd 5 shot group?

I'd say,that's purty darn good!At 200yards,for me it's easy to be off an inch just lining up the crosshairs on the target.If you are shooting those kind of groups,I wouldn't worry.If you are,you are a hell of a better shot than me.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Hows this for 200 yd 5 shot group?
Thread Thread Starter Forum Replies Last Post
Best 3 shot group so far thehulk Long Range Hunting & Shooting 10 02-02-2012 10:57 AM
546 YRD 3 shot group ....... bigbuck General Discussion 16 07-14-2010 08:56 AM
333 Yard 3 shot Group.......... bigbuck General Discussion 5 06-28-2010 09:51 AM
Cold bore shot group vs Warm bore shot group Alan Griffith Rifles, Bullets, Barrels and Ballistics 24 06-07-2010 11:58 AM

Current Poll
How Many Different Cartridges Do You Reload For?
ZERO, all factory ammo - 8.06%
360 Votes
1 - 2.77%
124 Votes
2 or 3 - 14.59%
652 Votes
4 or 5 - 20.41%
912 Votes
6 or 7 - 14.86%
664 Votes
8 or 9 - 8.64%
386 Votes
10 or more - 30.68%
1,371 Vote
Total Votes: 4,469
You may not vote on this poll.

All times are GMT -5. The time now is 02:07 AM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC