Bolt action question - barrel heat up

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Dave3006

New member
I have a standard Remington 700 ADL in 30-06. As is typical on hunting rifles, after the barrel heats up (5 shots or so), my point of impact rises about 5 inches at 100 yards. I don't want to dump a lot of money into this gun. I have two questions:

1. Would glass bedding help?

2. Could I get a gunsmith to free float the barrel and use the same stock?

Would these things help?

Thanks.
 
Neither glass bedding nor free floating will contribute much to a light sporter barrel which heats up during a rapid fire string. Those sporter barrels are accurate (I get a nickel size group with factory ammo on my 30-06 BDL), but you can't blast away with them as if they're a heavy barrel match gun. Time must be allowed for them to cool between shots. In a hunting situation, emphasis is on stalking close enough such that one should only fire one shot (and perhaps a second to dispatch a wounded animal).
 
Both my buddy and myself have had nothing but bad luck with Remington 700's----My only suggestion is to get rid of it and buy a different brand of rifle.
 
4V50G has a good idea. You really can't bang away with the thinner bbls. Give the beast a break every few shots.

BTW, my ADL in30.06 is an awesome weapon, and is capable of shooting < 1/2 MOA groups. DO NOT GET RID OF IT!!!

my two cents.
 
A mix of experience and opinion: If the group starts stringing upward with heating, a common reason is that the front of the stock is bearing a bit too much against the barrel. This is due to differential expansion of the steel of the barrel and the wood or plastic of the stock.

While the above comments about sporter barrels are well-taken, a partial cure is to make the barrel free-floated (but very little clearance out at the end of the stock), and then shim such that about a five-pound separation-pull is needed to insert the shim.

The shim acts as do the shock absorbers on a car, damping the vibrations of the springs. It gives a better uniformity to the barrel vibrations.

I've done this a bunch of times with wood stocks; it's always made an improvement.

Hope this helps,

Art
 
Thanks to all. How much time do you have to let it cool down between shoots? It seems like it takes about 20 minutes to cool down. That is an eternity when sighting in or during load development.
 
Well, one solution is to take two or three rifles to the range when sighting in. If you alternate shots with different rifles, you don't have quite so long to wait between shots and the barrels get a chance to cool down.
 
There is a thread going on at varmint hunters?? about cooling a barrel using water while at the range.Several posters said they use various types of squirt bottles filled with water.They take the bolt out,tip the rifle down,and slowly (cools better) squirt water down barrel.One poster used a wet towel also.The debate about warping/ruining a barrel was very short lived and from what i gathered was safe to do this.Many of the people doing this are benchresters and varmint hunters shooting sub moa's.I did consider trying this myself last week,but chickened out.Anybody else do this,is it safe?? P.S. one guy even dips his barrel in a water barrel that his range keeps handy!!!!:eek:
 
Read my post on Ruger Ultra-Lite problems

I have been having a problem with a ruger Ultra-Lite in 223 for years. I finally got into the problem and, may be close to solving the problem.

Let me know if what I have found, is true for your rifle.
MADISON
 
When sighting in a rifle, I start at 25 yards, one shot at a time, until I'm dead on. That guarantees I'm on the paper at 100 yards, and fairly close to the desired point of impact. (Remember that it takes two or four times as many clicks for an inch at 25 yards as at 100 yards.)

I let the barrel cool and then shoot a three-shot group and move the center of the group. After a couple of three-shot, slow-fire groups, I let the barrel thoroughly cool down before a final check.

FWIW, I sight in .243 through .30-'06 for two inches high at 100 yards. Most stuff is roughly dead on at 200, and maybe six inches low at 300. It's certainly close enough for deer hunting.

Hope this helps,

Art
 
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