What problems crop up when going the other direction, small to big? I had a 06 110 converted to 338 378 Weatherby, thought the bolt head would fit fine from the 110BA ( heavy magnum ). PTG piece, says .050 longer lugs. Is that radially ?
Most likely they are talking "longer" towards the barrel (like the factory magnum lugs)...This length difference is taken care of during headspacing.
My builds have gone from Mag to .473 and to small rifle with every combination
in between, nothing is impossible...with these Savage/Stevens, except that some have had trouble with chamber stretch/case sticking when using small shanked barrels with some of the magnums...When others have not with the same caliber and loads...Go figure
Seems you guys have already felt my pain. Maybe you can help. I am converting an 1979 vintage Savage 110S from .308 to .223 since I found an original 110V .223 barrel available. The big delemma is the .223 bolt head you are discussing. I see that the long action bolt head is needed but hard to find.
What is the simplest way to go?
I believe that all you need is any short action .223 bolt head...The added length behind the pin is not required....But you most likely will need the small diameter firing pin and adjustment....Or you can drill out the new bolt head as mentioned earlier in this post...
The dremel trick is quick and simple on your bolt body...(years ago I did it with a small file one time)...A new factory bolt body should be only about $35 - $50 from Savage Shooters Supply...Call Lisa for the actual price as I haven't bought any for a couple of years...
Good Luck on the builds,