rechambering a barrel?

[a4beltfed2000]

Guys, 

    I have a strong desire to rechamber a couple of barrels. Heres the calibers that I would like to do

257 roberts
405 win
44-40
9.3mm

I do realize that some of the more modern chamberings commonly offered are considerablely better than these, but my desire rests more in the round than in the preformance in itself. Now the question is for any of you that are more familar with these than me, which barrels would you suggest for reboring these calibers.....

[kevinsmith5]

I'd be curious to here the answers here too. And for a 30-40 Krag. 30-30?

[quickdtoo]

There's no rechamberable barrel made by H&R that can be done with any of them, you'd need to do rebores,  22 Hornet or 223 for 257,  38-55 to 405 Win, probaby 22 Hornet to 44-40, and the 9.3 would best be done from a 26" 25-06 or 280, plan on spending $300 plus the cost of the donor parts, same if you had stubs made.

30-40 would be a simple rechambered 30-30.

Tim