Stagger Feed Mag Question 7mm mag to 243

I picked up a Model 111 7mag stagger feed. I plan on putting a 243 barrel (that I already have) on it for my daughter for next deer season. I'm planning on getting a barrel nut and lug, and getting the barrel nut wrench. I made a barrel vice. I know that I need a bolt face. My questions are:

1 Am I missing anything else bolt related or otherwise?
2 Found a post in this forum that said the 7mag box magazine should work although it might take some alterations to the magazine: does this just consist of moving the lips closer together?
3. Would buying a 30-06 mag for it be the better option and would this eliminate any feed problems running 243 cases through the 06 mag?
4. Is an action wrench necessary?

Thanks
Lonnie

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Would buying a 30-06 mag for it be the better option

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This is what I did when I put my 243 barrel on my 7mm Magnum. Magazine box was not expensive.

Thanks for the input. You haven't experienced any feeding issues either?

My most extreme change was: 7mm Rem Mag -> 22-250.
All I did was the barrel and bolt face. No feeding issues at all. Then I have done a 30-06 -> 264 Win Mag, that feed terribly and changed the mag/follower with only slight help.

What I find typically is due to the mfg process, or perhaps loose standards? Is that the short cartridge *can* pop up early and jam against the face of the barrel.

Try it without mag/follower change first, tweek if needed. Worse case is you are out another $20. If that is a deal breaker, you probably can't afford to build a rifle the first time:cool:

But I say don't throw parts at a problem that may not exist.