It is easier to fit a set of post 1910 barrels to a pre 1910 action than the other way around.
The issue being that the bolts in post 1910 guns are square on both sides and have the angle cut into them as a Channel. This was done as to make a tighter action and eliminate any chance of side to side play in the action.
Now... With that change in design to the bolt, the design of the top lever mechanism was changed also. So, it is not like you can take a pre 1910
Bolt and put it in a post 1910 action. They are both completely different from each other.
Still following me?
What you would have to do is modify your post 1910
Bolt by removing the square edges so that it is angled all the way across like the earlier bolts. You can either modify your existing one or modify a spare one and put it in.
The other option is to install a wear plate to your barrels you want to fit. This is not such an easy task.
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B. Dudley
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