Will Theoben Rapid barrel fit on BSA Ultra?

[Rapid7Nick]

Apart from the diameter being reduced. The rapid barrels will need the transfer port worked quite a bit, as the BSA transfer port is a totally different design that uses brass bobbin and seals. So the barrel will need a recess for this.
It maybe be easier to cut off the existing transfer port and start fresh again. Also upto about half an inch of the rifling of the barrel will need to be reamed out to accept the BSA probe and seal.

Can tomorrow take a picture of BSA and Rapid together to give you an idea of what will need to be done.

In fairness 24" rapid barrels fetch strong money, you could easily sell just one rapid barrel and still have change from purchasing a barrel blank.

[averageplinker]

It maybe be easier to cut off the existing transfer port and start fresh again. Also upto about half an inch of the rifling of the barrel will need to be reamed out to accept the BSA probe and seal.

Thud, thud, thud. That is the sound of amassed rapid fans fainting at the thought of those barrels being abused

[Rapid7Nick]

Thud, thud, thud. That is the sound of amassed rapid fans fainting at the thought of those barrels being abused

I did also say sell the barrel and buy a blank.

[greenwayjames]

I did also say sell the barrel and buy a blank.

Where from? Not so easy to get now. Chambers do Walther blanks but these are almost £120 plus post to an RFD who would charge a handling fee.

[MartynB]

Where from? Not so easy to get now. Chambers do Walther blanks but these are almost £120 plus post to an RFD who would charge a handling fee.

Can't you buy directly from LW ?

Edit: Just looked on their site, there's quite a few UK dealers listed

[Rapid7Nick]

Where from? Not so easy to get now. Chambers do Walther blanks but these are almost £120 plus post to an RFD who would charge a handling fee.

A specific made up barrel for an air rifle yes, but not blanks. Have had blanks before from chambers that were delivered straight to my door and no RFD needed.

You can get Weihrauch blanks from Silco direct to your door for around half the price of LW blanks.
http://silco.co.uk/categories/WEIHRAUCH-BARREL-BLANKS/

[jirushi]

Thanks for the replies gents and sorry for my late reply. I have done some more research. The .25 barrel turned out to be a LW blank; outer diameter is 16mm, and BSA barrels are 15.4. A machinist will modify it to fit my BSA pcps, using a .25 Ultra barrel as an example. The .20 barrel is a Rapid barrel. I will sell it on, as I think it would be a shame to modify it. As you point out. And making a .20 probe and probe guide for my BSA's is possible, but I've spent enough this month on airguns and related items haha. So that's it

[averageplinker]

Have fun with your .25" project