Yes that is how I interpreted it. To me it suggests that perhaps the silencer was used and that the murderer dropped the rifle end screwcap and could not find it? How do you see it?
Where to start........
OK. Right, the silencer and guts that I have see pics of appear to be what PH marketed in the 80s as a silencer for .22 rifles and air rifles...........how they decided it could be suited to both I have no idea as they have an entirely different way of operating.
However, for sub-sonic ammo it may have had some limited effect but IMO, not a lot of good..........but then what would you expect for what you can still buy these days for £25 new..........
I would imagine that its effectiveness would be reduced rapidly every time a weapon was fired through it, and by the time say 30 rounds had gone through it it would have been pretty much useless (applies to air and .22 rifles)
In all fairness to PH they did suggest it would improve accuracy for both .22 and air rifles........and it very probably did, because it acts as a muzzle weight which reduces muzzle flip when the gun is fired.
Note that these days a firearms certifcate is required to buy the same item even if it is for a non-FAC air-rifle, yet I can buy a non-FAC air rifle with one fitted as standard!!
I don't / didn't know PE, 'Gundealer'...well as an RFD, he would have been permitted to deal in any weapons and ammunition that were legal at the time including antiques. That means buy, sell, or hold licensed and unlicensed guns for individuals (and authorities if requested).
He would also have the responsibilty of reporting persons known to have illegal or unlicensed weapons.
He could not have traded guns that required shotgun or firearms certificates if he was not an RFD.
I wonder why NB or JB didn't use him to supply the Anshutz.
With regards to ammo for shooting rabbits a .22 air rifle pellet is perfectly adequate.......a tiny piece of lead, compared with a sub-sonic hollowpoint bullet (and why hollowpoint..............pointless.......geddit?)...
.......in fact a decent .177 air rifle will do the job.
So why was it necssary for a .22 rifle on the farm? Did they keep chickens and a rampaging fox need to be shot?