Home Forums Hunting & Shooting Hunting Rifles This has me stumped.

Good God! Not even in my wildest dreams would I have thought a box of ammo would go for that much.

Oh, there's worse: https://www.midwayusa.com/product/9...-416-rigby-400-grain-partition-box-of-20

Here's a clue:

.308 WINCHESTER!!

Sell it and buy a Kimber

$50 for one cartridge.
http://www.shop.ammo-one1.com/product.sc?productId=350

Got one a rare gorgeous 308 Win. A Sako Finnwolf which I bought 4 years ago New!. It shoots great 165 accubond at less than 1/2" !


How does that help?

Don't have my load book handy Fotis, IIRC mine were 3.800" and put three into a third of an inch in calm conditions.

Gunner thank you I may try that but I do not think going from 3.65 to 3.8 will shrink a 3.5" group into sub MOA---though I could be wrong. Plus your barrel is custom if I remember well.

While I hesitate to get involved in these accuracy mysteries, I'll present an example of how bedding and action screw torque can effect accuracy. The example below is a Savage Precision Target Action stock, a single shot with three pillars for the action screws. Only the action major diameter is bedded, with all three pillars precision fit to the action, and the epoxy bedding placed it such a way that it is exactly flush with the top of the pillars. Nothing else touches the action, barrel nut or barrel. except the rear of the recoil lug, Bottom and sides of the recoil lug are free floated. The entire rear tang of the action from the rear pillar on, including the trigger, is free floated and does not bear on the stock. Likely on a magazine rifle this will not be possible as two screw actions require a rear tang screw.



The following picture shows the effect on grouping by action screw torque. Note that the targets are read from bottom left to right then top left. The scope was adjusted to provide closer point of impact during the test, and we are only interested in the group size. Numbers are relative to action screw torque set by a precision torque gauge starting with the front screw rearward, in inch-pounds. xx front-xx middle-xx rear. Best performance was with the front and middle screw set at 35 in lbs, and the rear screw at 30 in lbs. Tightening more opened groups, and is not shown.



Now we come to one other factor, primers. The example shown below points out the difference made by two finalists in a test of various primers.



The same rifle, polygonal rifled barrel and load were fired for both groups. I assumed that the Federal 205M primer would be the better performer, but was astounded by the Winchester Small Rifle primer. While none of this may correlate to a .338-378 Weatherby, the assumption is that these factors do effect accuracy. My largest caliber is a .375 Epstein Magnum, which develops somewhere around 4,500 ft lbs of muzzle energy using a Hornady 270 grain bullet at 2,754 fps. This rifle was built by RCBS using a Shilen barrel and a Mark X action. How the rifle is held, on the rest, and the degree of compaction of the sandbags, multiplied by the flinch factor all effect accuracy. Some of my rifles will not group Accu-Bond bullets as tightly as others, but if your groups continue to cause misery, I recommend having it checked by the factory.

Yes, but with standard WBY free-bore, so was a buds, identical to your rifle, seat em long and drive em hard with Retumbo is what both our rifles liked, good luck to ya Fotis.

Fotis, as I said earlier, I would most definitely try a factory round before I went any further. It will yield lots of info and give you a reason to return the rifle to Weatherby and let them worry about it. No need to buy more powder and bullets. Spend the money on a half a box of factory stuff.

............Before you become involved with any bedding/torque issues and go in that direction to solve this issue, I would first experiment with different powder and bullet brand load combos using 225 grain bullets. Your rifle seems not to care for IMR 7828 behind the 225 ABs..........If you are getting bad groupings with all 225 gr AB loads using a wide variety of powders then dump the 225 gr ABs.

Squeeze---111 gr of H1000 with the 225 NAB did the same more or less

will try 250 AB's 225 Sierra pro hunter and 210 PT

You just have not stumbled upon the right load combination yet.

My 300 Wby took 430 rounds to settle in. Frustration was putting it lightly. It now stacks 180's in tight holes.

With a hunting rifle I expect and want to hit the game with my first shot at it from the cold barrel,

If a more shots are needed then of course a 'group' is also wanted,

Thus I keep records of all shots and am prepared.''

Here is a target shot with a favorite rifle:

Aluminum bedding blocks really are a joke... more so than the brand.

What are the other "good" reasons you have to avoid Weatherbys?

Bed a set of dual dovetails on it. Lap them. Try at least one other "proven" scope. By that I mean pull it off a known shooter in the safe.

mwarren.\::

Besides coming from the factory with inferior bedding? (not confined to WBY, admittedly)

Well, let's see, overly hyped, overly expensive for what you get, overly heavy (some), overly flashy (some), Brand ammo outrageously expensive for no good reason, Mags burn too much powder for too little gain in velocity (which is less important than accuracy, anyway), hard recoil (Mags), Customer service sucks (at least the 2 times I've tried it on customer behalf), doesn't kill any better than far less expensive brands

If I wanted to waste another 30 seconds thinking about it, I could probably come up with one or two more.

Roy and PT Barnum were soul brothers.

If someone were to offer me 3 brands of guns in comparative spots in brand product line - Say Savage (which I don't much care for), Winchester 70, (which I have never owned) and Weatherby, I would take the Weatherby, sell it to some sucker, and buy the other two with the proceeds.

YMMV, and welcome.

If someone were to offer me 3 brands of guns in comparative spots in brand product line - Say Savage (which I don't much care for), Winchester 70, (which I have never owned) and Weatherby, I would take the Weatherby, sell it to some sucker, and buy the other two with the proceeds.

YMMV, and welcome. smile