Home Forums Hunting & Shooting Hunting Rifles Question for you Weatherby guys !!

I found a weatherby Mark V fibermark in 280cal. Does the weatherbys in standard cals have freebore like the weatherby mags do ? I handload so I would think that I could make this a real shooter. Thanks

Sounds like a cool rifle in a great cartridge.

I have 3 currently in standard calibers and had a couple of more, no freebore found in any of them

there is no freebore in your 280 i have several weatherbys & the only ones with freebore are the weatherby mags

My dad has a 30-06 Mk V, it has a friggin ton of freebore! It is in my safe as we speak. The only previous bullet I could get that damn gun to shoot worth a flip was the 165 XLC. He has since ran out of those reloads, so had to work up something else.

To reach the lands, 150 TSX, 3.424. 165 NBT, 3.44. 150 AB, 3.45.

It is a lefty, made in Japan.

I thought the mark v was made in the US. Made in Japan in a major turnoff for me

Since Weatherby guns are made by contractors,they are made wherever the current contractor is located.This has included Germany,Japan and the USA.

Current MkV's are made in the USA ....

Don't turn your nose up at the used Jap MkV's .... very good shooters

Jap Mark V's are extremely well built rifles

The standard chamberings in Weatherby Rfiles are chambered to SAAMI specs. Freebore is only present in cartridges that incorporate it in the reamer design, and I am talking factory rifles here.

The .240 and .416 Weatherby Magnums do not have freebore.

JW

For those of us not very familiar with Weatherby rifles, "free bore" means that the case head spaces off the shoulder of the case and not the mouth, correct? As such, the rifling is well off the bullet which prevents a close bullet-to-rifling chamber of the cartridge?

Not entirely true ... I assume that the belted mags still headspeace on the belt (technically), although reloaders still may resize to headspace off the shoulder. Freebore is basically a longer throat than on non-WBY cartridges. There is a longer "jump" to the lands.

There is a longer "jump" to the lands.

That is correct Avagadro, Weatherbys headspace on the shoulder for nonmagnum calibers, and on the belt for magnums. All freebore means is there is a longer distance for the bullet to travel to reach the rifling. This can increase accuracy, but mostly lowers preasure.

Also, Weatherbys are now made again in the US. they were for a time made in Japan and Germany as well. ALL are built to weatherby standards and are excellent rifles!

Hope this helps

Ken

I'll take it another step. I think the Jap-made Weatherbys are the best of the bunch.

Extra freebore does nothing for accuracy, just the opposite. Bullet jumping increases the chances of the bullet getting started crooked in the barrel.

The OP is talking about a 280 and there is no freebore in that barrel. From what I understand Weatherby does a very good job of cutting chambers on their rifles. I think that would determine how much or little accuracy is affected by the freebore.

As previously stated ,Headspace is what locates the BRASS, the shoulder on smooth cases ex30.06 ,25.06,338.06.
The rim on rimmed cases ,257 WBY ,7mmRem mag ,30-378WBY.

Freebore is the distance a BULLET travels before it engages the rifling. The WBY cartridge rifles I have owned have had a lot more freebore than the WBY rifles in standard calibers I have owned.

Lots of freebore lowers pressures, as the bullet is moving before it is mashed into the rifling and sent spinning on it's way. It may not hurt accuracy, but I can't see how it would help.

A .280 rem. would likley have standard (saami) chamber specs and very little freebore.