Test Rounds For Accuracy

USAN

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Hunters are obsessed with accurate rifles — but often mystified as to why some are and some are not. Gunsmiths and even custom gun makers admit they are often mystified, too. Despite the best barrels and most careful rifle construction — using all of their accurizing tricks, gun makers still find rifles that won't shoot.

The average hunter doesn't have the time, resources or know-how to "accurize" a rifle, but he can easily conduct a series of tests that reveal the most accurate ammunition a rifle will shoot.

It's a well known fact that some rifles shoot poorly until fed one specific load. Something about the combination of powder charge and bullet shape/weight/construction combine to maximize accuracy. Finding this load should be every hunter's first step toward hunting and shooting precision. And here's how to do it.

solid-bench-test.jpg

Do all your accuracy testing from a solid bench with solid gun support. A critical first step is to tighten all scope mount screws to manufacturer recommended levels — usually about 18 inch pounds.

  1. First, select your three or five favorite loads/bullets and buy a box of each. To save $, just get two at a time and pit the winner against a new load later. Use the excess "inaccurate" loads for field practice. Don't be afraid to get bullets heavier and lighter than you might prefer. Game animals rarely notice the difference between 130, 140, 150 and 160-grain bullets, but your rifle might.
  2. Set up a rock-solid bench/table and enough sand bags or other rifle supports to hold the rifle dead steady as you shoot. It isn't a fair test to shoot from pillows or coats laid over your truck hood.
  3. Adjust the diopter ring on your scope so the reticle appears crisp and sharp against a clear background. If the scope has a parallax adjustment, dial that until the target at 100 yards is as sharp as possible.
  4. Calm yourself, align crosshair on target, note how much the reticle moves against the target as you breathe and squeeze the trigger ON AN EMPTY CHAMBER. When you hear the click of the firing pin falling, note where the reticle was on the target. It should not have moved. Do this dry firing many times until you SEE that you are not flinching or moving the rifle.
  5. Load a single round into the chamber and squeeze off one shot with the same precision you did while dry firing.
  6. Repeat step 4 as necessary to end any flinching. Then repeat step 5 two more times. Do not adjust your scope turrets at any time during this 3-shot test firing (as long as bullets are hitting the target.) You are watching for how closely three bullets land to one another.
  7. Repeat this 3-shot test firing with your next load. Compare the two. To be safe, shoot one or two more 3-shot groups. Select the load that is most accurate. Don't worry if one shoots lower or higher than the other. Final zeroing comes later.
  8. If both loads group within 1/2" of one another, select the winner based on bullet type/weight/construction that matches your hunting needs. You don't want to pit a thin-skinned varmint bullet against a moose or a bonded bullet against a ground hog.
  9. Understand what "hunting accuracy" is. A load that consistently keeps three consecutive shots inside 2 inches (2MOA) sounds horribly inaccurate, but that 2 MOA load will park bullets within 4 inches of your Point-of-Aim at 400 yards. On the 12" to 16" vital zone of a deer's chest, that's a killing hit every time.
  10. If unsatisfied with the accuracy your first two test loads deliver, try a new load or two.
It will cost you to test drive ammo like this, but wouldn't you rather spend $200 on ammo before the hunt than blow a $4,000 hunting trip by missing that 6x6 elk?
 
Thanks for Sharing! Ive explained this to many clients
 
Always surprised by hunters that spend a lot on guns and glass, but are so reluctant to use up a little ammo at the range to find what works best for them. And then there's my buddy Levi. He will shoot up a couple of boxes of .300 Win Mag every September just to be sure his gun is still "on". My kind of guy.
 
Yes good advice
 
2 MOA load will park bullets within 4 inches of your Point-of-Aim at 400 yards

No that is 1 MOA 2 MOA is 8" at 400 yds
 
Icq, I interpreted what was said the same as you until I reread it a couple of times. I think by saying "within 4" he means an overall spread of 8", i.e., 4" in any direction from POA.
JMO after rereading it.
Best
 
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Icq, I interpreted what was said the same as you until I reread it a couple of times. I think by saying "within 4" he means an overall spread of 8", i.e., 4" in any direction from POA.
JMO after rereading it.
Best

agreed it was confusing mixing inches and MOA
 
Very good advice. I'm a victim of flinching as when I first started shooting a friends father thought it would be amusing for me to get the Weatherby award on my forehead. Said you'll never do that again! Idiot! I thought dry firing can cause pin damage in the bolt?
 
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Very good advice. I'm a victim of flinching as when I first started shooting a friends father thought it would be amusing for me to get the Weatherby award on my forehead. Said you'll never do that again! Idiot! I thought dry firing can cause pin damage in the bolt?

Same experience with an idiot uncle giving me a 12 gauge when I was 13. I use snap caps and prefer those with a spring and brass primer Tipton
 
Same experience with an idiot uncle giving me a 12 gauge when I was 13.

Your idiot uncle may have been my next door neighbor ... I got the same treatment at about the same age from my neighbor.

No, dry firing is not harmful for modern centerfire rifles. It is for most rimfire and some older centerfire rifles.
 
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Get advise. I spend lots of time on making the right loads and finding the bullet my guns like. It cost a lot but when it comes time to hunt I know that bullet is going where I'm aiming which give more confident shots and help you relax and make better shots.
 
The thing about the magic combo is real enough. I have been struggling a bit with an older Ruger 77 in 7x57. Tried several things that all looked promising only to have them scatter next time out. Finally ended up bedding the action and floating the barrel. Still erratic with loads that shot before. Then tried a combo of Hornady 175 gr Spire Points with Re22 and bingo, it all came together. Shoots that combo into sub MOA with repeatability using from 47-51 grs. 51 was max in this rifle though its well over max in most loading books.
 
The thing about the magic combo is real enough. I have been struggling a bit with an older Ruger 77 in 7x57. Tried several things that all looked promising only to have them scatter next time out. Finally ended up bedding the action and floating the barrel. Still erratic with loads that shot before. Then tried a combo of Hornady 175 gr Spire Points with Re22 and bingo, it all came together. Shoots that combo into sub MOA with repeatability using from 47-51 grs. 51 was max in this rifle though its well over max in most loading books.

I find the Hornady interlocks are really easy to get to shoot. Really good bread and butter game getter
 
I haven't always done exactly as described but we all learn over time.
 

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Because of some clients having to move their dates I have 2 prime time slots open if anyone is interested to do a hunt
5-15 May
or 5-15 June is open!
shoot me a message for a good deal!
dogcat1 wrote on skydiver386's profile.
I would be interested in it if you pass. Please send me the info on the gun shop if you do not buy it. I have the needed ammo and brass.
Thanks,
Ross
Francois R wrote on Lance Hopper's profile.
Hi Lance hope you well. The 10.75 x 68 did you purchase it in the end ? if so are you prepared to part with it ? rgs Francois
 
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