.338-.378 Weatherby Magazine

[BKolic]

Hey guys,

My younger brother purchased a Weatherby Accu Mark .338-.378 2 years ago and loved it. My older brother just purchsed another range certified version he got a smoking deal on. Only thing unappealing is only 3 bullets due to the size of the bullets. Does anyone know if a magazine conversion is offered?

 

[Kurz]

Only thing unappealing is only 3 bullets due to the size of the bullets.

Do you mean cartridges? If that's the case then you can get a magazine system made especially for the Weatherby -378 cartridges.

 

[BKolic]

Do you have a link bud? I looked and couldn't find it on their site. Thanks.

 

[Ares]

If that is a Mark v Accumark, CDI precision makes em for LA's using either 300 wm or 338 Lapua AICS magazines.

http://www.cdiprecisiongunworksstore.com/weatherby-mkv-long-action-standard/

Else there would be some write up on Longrangehunting, and weatherbynation forums that can lead you to a few other options.
I got no experience with the 378 weatherby case and how it would feed in those mags.

 

[Kurz]

CDI Precision is closed due to the passing of the owner.

Here's the link:

https://www.lrplongrangeprecision.com/cproduct/10/378-detachable-mag

It's a little pricey but if it's the only game in town...

 

[Lee in Texas]

Part of me wants to ask about a drop magazine for 378 WBY in a 1917 Enfield. The rest of me doesn’t want that much abuse in a short time.

 

[BKolic]

They are both Mark V Accumarks. The CDI link is still active. Did someone else resume the business?

 

[Kurz]

No, his wife hasn't paid attention to the site. She's supposedly returning work that has been accepted but not implemented. Another gunsmith is helping out with clearing up the backlog in house. My guess is that she is overwhelmed with his passing but still trying to do the right thing for his customers. This has got to be insanely tough on her...

 

[BKolic]

Yes, that is sad. My father recently passed and it is still seems unreal. I feel for her.

 

[wboggs]

What do you intend to use you rifle for?

 

[BKolic]

My brothers and I hunt big game in the fall. Sometimes it is beneficial to have more than 3 rounds available.

 

[Kurz]

My brothers and I hunt big game in the fall. Sometimes it is beneficial to have more than 3 rounds available.

I guess it depends on how you hunt. In this situation using the above DBM system, simply carry another magazine, drop the empty one and insert the new one.

 

[BKolic]

We have a 300 Weatherby with detachable mags and that is exactly what we do.

 

[DaveTooley]

I think you'll find the AI CIP mags on the short side for 33-378 round. Max COAL 3.760" and the recoil ribs would need to be milled out of the sides.

 

[warbird2006]

We have a 300 Weatherby with detachable mags and that is exactly what we do.

Did you make them? Can you share pics?

 

[Hammer]

at one time...

Weatherby made a replacement magazine and floorplate option for the Mark V rifle which increased the magazine capacity in the 378 family by one additional round.

I have used them with no problem.

Do not know if they're still available from Weatherby.

 

[wb30378]

Weatherby made a replacement magazine and floorplate option for the Mark V rifle which increased the magazine capacity in the 378 family by one additional round.

This was available through the custom shop at Weatherby at one time.
CBA2037 Drop box kit installed ( Specific calibers only ) 378-416-460 Wby, 338 Lapua