Produced by J P Sauer & Sons, Suhl of course.

What would be considered median or normal accepted accuracy standard for this rifle and caliber? Please, I am not interested in what they advertised, but what they delievered to the average shooter. Appreciate the feedback.

You can expect 2 inch groups with Weatherby Factory ammo. With handloads a bit better maybe.

I Know that you can do better then that! Try IMR 7828. I get very good groups with this powder out of my .300, and .340 Weatherby rifles. I always got 1 1/2 or better with factory ammo out of the few Mark 5 rifles that I shot. Make sure that the stock screws are tight. If they become loose the stock will crack, and group size will open up.

The answer is it depends on what weight bullet you are shooting. Up until 1967 or so, 300 Weatherby barrels had a slow 1 in 12 twist. They did not stabilize heavier bullets. Weatherby went to a more standard 1 in 10 twist in 1967 sometime. The same is true of the 7mm.
sbsmith

Half inch or less with factory ammo. No telling with handloads, but if it doesn't shoot with 180gr Wby ammo with Spire Points, the barrel's gone. jorge

Gentlemen, thank you. One last question if I may... What is the real speed of factory ammunition in a 24" barrel?

To be sure you would have to cronograph your rifle. All my .300 WBY. Mags have or had 26 inch barrels. I would guess that with 180 grain bullets 3100 FPS-3200FPS would be in order.

My 300 Wby is a Remington 700 Classic with a 24 in. barrel. Using IMR 7828 I can get 3200+ f.p.s. with 180 gr. bullets and 3000+ with 200 gr. ones. RL 22 usually gives me a bit better accuracy but at a sacrifice of 70 to 100 f.p.s.

The most accurate load I found was with 200 gr. Nosler Accubonds and RL22.

I haven's shot factory loads in it for a long time, and I didn't chronograph them when I did, so I can't answer the question about velocity of factory loads.