THE ACCURATERELOADING.COM AMERICAN BIG GAME HUNTING FORUMS


Moderators: Canuck
Go
New
Find
Notify
Tools
Reply
  
fliers-please help!
 Login/Join
 
one of us
posted
Hello all. I have posted some recent queries on a few forums about bench and prone technique. I have tried these various suggestions but am still getting fliers. I am having some problems getting consistent groups from my 300 Win Mag big game rifle. It weighs 9.5# with scope. I have been shooting for more than 30 years and reloading for 20 years. I am generally a very good shot and successful hunter. I have taken deer at various ranges including 300, 330, 360 and 508 yards (all one shot kills) from field positions (no bench or sandbags). I have hunted varmints from preschool and have taken rockchucks out to 640 yards.

I am having some problems lately though with a recently rebarreled rifle. It had been a Winchester Model 70 in 300 Win Mag with their BOSS attachment. I finally came up with a load that shot well. It used a 200 grain Nosler Partition at 3000 fps and it was in an 8# rifle with scope (the BOSS muzzle brake reduced recoil though). I had restocked it with a kevlar stock. That load would consistently give me 0.9" 3 shot groups at 100 yards. Now my rifle is not braked and it is recoiling more. I am quite confident that I am not flinching but I do think that the recoil is causing some problems. I am quite baffled as to what I need to do to get consistently small groups. I have shot many small groups with this gun (sub 0.75 MOA with many in the 0.5 MOA range) but often get fliers that I cannot account for. I think it has to do with the recoil and how I am handling it. I mostly think it has to do with my equipment setup but I am not sure what needs to change.

The rifle has a Rimrock synthetic stock and is glass bedded and the barrel is freefloated. Everything is tight. The scope is a tried and true Leupold. I think the main problem has to do with my front rest. I have tried positioning the rifle on the front rest where the barrel attaches to the action and further forward out towards the front sling stud. This positioning does not seem to make any difference. I have tried using my non-shooting hand to pinch the rear bag to fine tune the sight alignment and I have tried holding the stock between the front and rear rests with my non-shooting hand. Still getting fliers. The bench I use is an Armor Portable Shooting Bench. It has a wood top with metal legs. I have used it for years and it is very stable. My front rest is a Hart pedestal rest with a sandbag top. I use a bunny ear rear sandbag. I think the sandbag on the front rest it too hard and may be causing the fliers. I plan to try to remove the bag and replace it with a softer bag. My handloads are high quality.

I do not think the problem is the ammunition or the gun. I think it is me (how I roll with the recoil) or the equipment (how the rifle may bounce differently shot to shot). I have tried so many different things to get consistent groups that I am starting to pull my hair out. I feel that I could profit by some professional instruction. If I could show up with my equipment and rifle maybe that professional could immediately recognize what the problem is or he could witness me shooting and see what may be going on. Also I feel that I could use some fine tuning on my prone technique. Last time I shot a long range prone group with this rifle I put 9 shots into 7.4" at 500 yards but 6 of those were in 3.4". While I recognize that that is very good shooting for most people I also recognize that the rifle and load are clearly capable of 3.4" groups at that range and I do not like seeing those other 3 shots opening the group up to 7.4". That same load from the bench put 12 shots into 5.2" at 400 yards with 10 of those in 2.75". Again I hate seeing those fliers. I am an accomplished hunter and game shot. I just have these nagging fliers with this gun. My other guns are shooting very well and consistently but they are much lower in recoil.

I think that if I could get together with someone who is shooting a similar rifle (9.5# or less 300 Win Mag or more powerful cartridge with sporter stock) from the bench and getting consistent groups (whether they be 0.3" or 0.5" or 0.75" so long as they are consistent) then in an hour or so I would probably have it figured out. Do you have any thoughts as to what I may be doing wrong? I apologize for this very long-winded story. Sincerely, Brian Carlson.

 
Posts: 224 | Location: Walla Walla, WA 99362 | Registered: 05 December 2001Reply With Quote
<heavy varmint>
posted
Brian, you sound like an acomplished shooter and I am not trying to insult you with the basics but are your fliers verticle or horizontal. Are you giving your barrel enough time to cool off between shots. My 300mag. with a sporter weight barrel would group .4, 5 shot group at 100 with 80.1 grains of H-1000 and 180gr. Sierra Game Kings if I waited at least one minute between shots but if I would shoot steady, one shot after the other it each shot would move a little further to the left than the one before. I found that my barrel would heat up with just one shot and take longer to cool than most of my other rifles. Sorry if this doesn't help.
 
Reply With Quote
<sure-shot>
posted
Your rifle: Make sure your barrel is not copper fouled especially in the throat area. If your cleaning technique has been insufficent you may have a badly fouled throat which built up over time. Try cleaning with JB paste and Sweets or CR-10.

On your bench technique: If you suspect flinching try having a friend load your rifle each time without you watching, one of those times he should leave it empty and you will know if you are flinching. One of the shoulder worn recoil pads help alot especially off the bench. Shoot a scoped rimfire often also-this will help your shooting skills greatly. sure-shot

 
Reply With Quote
one of us
posted Hide Post
I did go out and do some shooting this morning. I shot at 400 yards. Today though I tried something new. I removed the sandbag (it was quite hard) from my front rest so that I ended up with just a flat platform. Then I placed a softer bag on that platform. The first group was fired while using my non-shooting hand at the rear bag to fine tune sight alignment. It was somewhat windy and I was not using wind flags. I just waited until the breeze on my face felt the same. It was a 3.13" 3 shot group with 2" horizontal and 3" vertical. The second group was fired on a different target and I held the stock with my non-shooting hand. That group was 2.08" 3 shot with 2.08" vertical and 1.4" horizontal. The third group was in the same manner as the 2nd group and was fired at the same spot as the 2nd group. It measured 2.24" with one of the shots 1.8" further left than any of the other 5 shots fired at that spot. So 6 shot group size was 4.5" at 400 yards with one of those left of the others and one of those high from the others. 4 shots went into 1.48". The last group was 4 shots using the same technique as the first group (non-shooting hand at rear bag) and was fired at the same spot as the first group. Those last 4 shots went into 2.75" with 3 of them in 0.9". All 7 shots fired with that technique went into 4.7". The last group was 3" left of the first group. The shots fired while holding the stock with my non-shooting hand were on average 1" high of point of aim while the groups fired without holding the stock were on average 1" low. Even so all 13 shots would have been in 6". Not bad considering that I was dealing with some wind and two different holding methods. The gun is shooting well and I have a good load for it. The trick seems to have been to get rid of the hard front bag. I still am not sure if holding the stock is better than using my non-shooting hand to tweak the rear bag. If I had fired all shots using the same technique I presume that I would have had a 13 shot group size of 4.7" since the group centers were off by 2" vertical. Anyway I think I am on my way to better, more consistent shooting with this heavier kicking gun, now that I am using a softer front bag. Rufous.
 
Posts: 224 | Location: Walla Walla, WA 99362 | Registered: 05 December 2001Reply With Quote
  Powered by Social Strata  
 


Copyright December 1997-2023 Accuratereloading.com


Visit our on-line store for AR Memorabilia