Happiness is a BSA Supersport.

[TonyL]

I was having a look through some spares today and found a .22 carbine barrel with ZD serial no stamped on it (which makes it a Challenger barrel), gawd knows where that came from but I know what rifle it's going on

Pete

Isn't it nice when you re-find such lovely little surprises?

Now, let me guess........

[look no hands]

Isn't it nice when you re-find such lovely little surprises?

Now, let me guess........

I'll give you a clue......it begins with a 'C'

Actually I've just realised that I can make a Challenger carbine with the proper barrel and serial number

Pete

[TonyL]

I'll give you a clue......it begins with a 'C'

Actually I've just realised that I can make a Challenger carbine with the proper barrel and serial number

Pete

Sorted!

Maybe scope for a slight de-tune also, Pete.

[look no hands]

Sorted!

Maybe scope for a slight de-tune also, Pete.

Now then me old mate Tone, prey do tell, why would I want to de-tune it?

Yours confusingly.

Pete

[TonyL]

Well, unless I've guessed wrong, Pete, you'd be switching it with the .177 barrel?

So, if the power output was already healthy with the tiddler bore, switching to the more efficient .22 would raise muzzle energy too high, creating the need to de-tune and bringing with it the benefits of lower cocking effort and a sweeter firing cycle.

[Binners]

Well at least one Suoersport will be at KP tommo

[look no hands]

Well at least one Suoersport will be at KP tommo

Who's might that be?

Pete

[look no hands]

Well, unless I've guessed wrong, Pete, you'd be switching it with the .177 barrel?

So, if the power output was already healthy with the tiddler bore, switching to the more efficient .22 would raise muzzle energy too high, creating the need to de-tune and bringing with it the benefits of lower cocking effort and a sweeter firing cycle.

Sorry for any confusion Tone, I have a few Challenger/Mercury S based rifles, I've had so many over the years and have bought other stocks and parts and have made hybrids, I've also got a couple of untouched Challengers/Merc S's, I've just realised I need to change my rifle list below as my .177 hybrid now has a Merc S stock on it not the Challenger stock it once had and the .177 barrel is a Lightning barrel, so a right old mix of parts.

I think I need to take stock of what rifles I have and how they've evolved over the years.

Pete

[TonyL]

Sorry for any confusion Tone, I have a few Challenger/Mercury S based rifles, I've had so many over the years and have bought other stocks and parts and have made hybrids, I've also got a couple of untouched Challengers/Merc S's, I've just realised I need to change my rifle list below as my .177 hybrid now has a Merc S stock on it not the Challenger stock it once had and the .177 barrel is a Lightning barrel, so a right old mix of parts.

I think I need to take stock of what rifles I have and how they've evolved over the years.

Pete

Yep, it's all too easy to think that you'll remember all the guns and bits you have and details of what you've done to them rather than writing it down.......only to forget!