Half moon cut to extract loaded ammo

[dgarrett]

I am having a 338 Edge built on a Remington 700 Action with the 4.00 inch Wyatts box.... Is there any problems with having a half moon cut done on the action ... Just like the Weather

by's have so I can extract loaded ammo without pulling my bolt????

 

[greatwhitehntr]

It will be fine have it on all of my ultra mags that are throated long
mine are front and back

 

[Hired Gun]

With a 4" box after you cut the front the rear opening will need opened up to or it is so deep under the bridge the brass will not swing out. It will just fall off the extractor and lay there. I'm not a fan of the 4" box at all.

 

[greatwhitehntr]

With a 4" box after you cut the front the rear opening will need opened up to or it is so deep under the bridge the brass will not swing out. It will just fall off the extractor and lay there. I'm not a fan of the 4" box at all.

Could you explain more

 

[greatwhitehntr]

Do you think it is a timing issue with yours?

 

[dgarrett]

I believe only the front will be cut... My loaded round will be 3.940 oal... It is close to extracting with the bolt stop cut back. Just the very tip of the bullet isn't clearing the front opening of the action... maybe 1/16 of an inch cut would let it flip out...Reasons for the 4.00 inch wyatts over the 3.85 are to load long and chase all the extra performance I can out of the standard Edge... My goal is to be able to shoot the 300 grain Bergers at 3000fps using reloader 33... Just like the other 2 edges did using the same reamer... all in a repeater...I had to trip the bolt release on these rifles to extract a loaded round... Not a huge issue but I cussed every time I had to do it..I will know soon enough... My rifle is at Kampfields right now getting fluted skeletonized and the receiver milled to open up for extraction.... I sent a dummy round... Will report when I get it back

 

[greatwhitehntr]

You should just have them do the side bolt stop or at least while it's there and M16 extractor then you know you're good to go

 

[Edd]

Could you explain more

After you get the bottom of the action cut and the bolt stop trimmed, chamber an empty case. Then slowly pull the bolt to the rear while pushing inward on the case so the ejector plunger can't eject it. Pull the bolt all the way back against the stop. Now take your finger off the case and see if it flips out or if it jams against the inside of the rear bridge.

 

[greatwhitehntr]

I do see how that test would work on a standard Remington 700 that is a great idea.
Most of mine are on a custom action and all of my rem 700s have a M16 extractor and some of them I've had turned into a dual plunger mostly the magnums

 

[Edd]

I had to grind the inside of the rear bridge on a BAT HR action for an Ultra Mag size case. I would check it on any action I used.

 

[Hired Gun]

Could you explain more

It only does it with live ammo. By the time the nose of the bullet clears the front bridge the rear of the brass is so far under the rear bridge it can't swing out cleanly.

 

[greatwhitehntr]

I would have to assume it is done on a custom action.
and I don't run anything bigger than 300 win mag on the Remington 700 that I had blueprinted
good information thank you

 

[therifleman556]

A number of years ago (2007?) we built a pair of Lapuas on 700 actions. We actually milled out the rear receiver bridge to make the opening about 1/4" longer. In addition to this we also enlarged the "cone" shape relief that's milled inside the bridge. Worked very nicely.