Somewhere between $10 and $600. There are hundreds of different makes and models- but you gave us no information we can use to give a meaningful answer.
Depending on condition 300-700
arund 450,000 or so, depending on calibre
Between $10 and $1000. Value of a rifle depends on make, model, and CONDITION. You gave us none of the three.
made 1942
50-150 or so
go to: Gunboards.com scroll down to JAPANESE section. you can offer your jap rifle for sale there..................
50-500
Without knowing the condition of the firearm, it could be 100-1000
Assuming you mean a British MILITARY rifle, such as the SMLE, between $100-$350, depending on condition and originality. Rifles that have been "sporterized" lose much of their value as a collector's item.
50-150 USD or so
You did not state the condition of the rifle, without that information it is not possible to give an estimate of value.
Your rifle was built in 1942 but the value will depend on the overall condition of the rifle. The best site I have found for dating rifles is oldguns.net that is where I came up with your information.