Can anyone lead me in the right direction on which action/bolt is required for this round?
I have the magnum .532 bolt head that I’m trying to install on the bolt.
What I have tried so far:

1) Model 11 Bottom Bolt Release Trophy Hunter XP in .308 w/accutrigger SA
2) Model 110 Savage in .243 (Factory LA rifle before SA came along I was told)
3) Stevens 200 SA in .223

Problem with #1: This model has a bell on the firing pin shaft that will not let the pin come through the head and strike the primer.
The Magnum shaft is about 3/16” (just guessing) longer then the Mod 11

Problem with #2: The Magnum shaft is about 3/16” (just guessing) longer then the Mod 110, thus not letting the pin come through
the head and strike the primer

Problem with #3: The Magnum shaft is about 3/16” (just guessing) longer then the Stevens 200, thus not letting the pin come through
the head and strike the primer.

In the picture you will notice the magnum head is longer in length and the lug is also longer, as this is the problem with all three models I tried above.

Seems the pin hits the shaft of the magnum bolt head in all three cases.

Anyone have any suggestions???

Thanks in advance!