Didn't you ask a similar Q a short while ago??
This unit here that KJD has for sale is a great package, excellent price and is a 2 shot RWS Rapier.
http://ausvarmint.kjd84.com/forum/viewt ... f=5&t=7999
If you want more shots in the magazine (8) go for the Rapiers big brother
The RWS Excalibur
They look almost the same and handle the same as what KJDs pics show except the Excalibur has space for the bigger rotary magazine in the breech.
Lewis has one for sale in his latest list
http://ausvarmint.kjd84.com/forum/viewt ... =18&t=8344
In this list are 3 of the AGs I would suggest you get for "Rat popping" if you don’t grab KJDs.
RWS/FX Excalibur .22 8 shot
Theoben SLR98 .22 7 shot
Beeman/Theoben Super 12 .20
I shot "rats with wings" for ages/years (several) at times to a semi-pro level until I got sick with this bloody Cancer.
I used an RWS Excalibur initially at close to max power as most of the work was outside on large factory sites or orchards (farms) or in very large machinery sheds.
As I got more known I started to get more calls from smaller places to get rid of “Rats” and other pests from warehouses and from around cooling towers or large commercial heat exchangers in or on roofs.
I was a bit concerned about through shots as some of the shoots were as close as 15-20 feet not yards. I evaluated my main shoots at the time and found that I was getting more smaller places but much smaller bird/animal count shoots than when I first started out.
I'd be called in for 3 “Rats” in a truck garage and those sorts of things in amongst big jobs with scores of “Rats” as well as rabbits and cats all on the same large site.
I spoke to Lewis and he suggested that I get a quality gas ram set to about 17-20 FPE for close work
OR
We turn the power down a bit to stop me making holes in roof/wall tin after close range pass throughs.
I was concerned about not having enough power for the longer than 30 yard shots. Lewis helped me with the maths as I didn’t have the Chairgun2 pc program at the time. We trialed the initial drop in FPE to the mid 20’s and I was amazed at the large increase in shot count with no drop in lethality at all.
So
Lewis turned down the Excalibur to 20 FPE ( about same power as SLR98) and I was much more comfortable doing the close in work (even down to 10 feet) but I was not restricted out to ranges up to and exceeding 40 yards on all birds and small furry ferals and vermin.
The Theoben SLR98 .22 7 shot will do the same function as my turned down Excalibur did without the need to tired to a scuba tanks, filler etc—It’s a gas ram powered lever operated multishot rifle. I have been chasing one for years and now that they are more available I am without $$ to buy one.
Beeman/Theoben Super 12 .20 is an older model of the Theoben Rapid- 12 shots and the rifle of choice for a friend of mine who is a certified vermin controller in the Mallee region of Vic. It works a treat and has given him zero issues and he has had weeks where he shoots upwards of 350 birds in and around the fruit packing sheds up his way.
He does fox and rabbit control work for Govts/Councils etc up that way and uses the Rapid instead of a .22 LR more times than not.
The scope question- no you don’t need a dedicated air gun scope because of the Springer type recoil issues- but it’s much better to have one for the much closer focusing and parallax issues that centre fire scopes don’t cater for that can become an issue with the closer ranges encountered by air gun users
My suggestion- buy a G&R scope as they are like the Rolls Royce of air gun scopes- if they are too $$$- look at the Hawkes that Potter sell I like the one that is on TrevorT's springer when I got to shoot it. Very clear optics and precise click movements.
You mentioned the FX Monsoon semi auto- To me the technology is too new to have all the bugs worked out of it yet- and by its nature it will be a lot more maintenance intensive to keep it running at its best. I know that 10 meter target semi autos are temperamental beasts and require TLC to keep them working properly.
Do you want that sort of grief with a working rifle- do you want to have to dedicate the maintenance time to it, which could be used shooting instead.
The other major, major, major draw back is the shop you have to deal with to get an FX- its more fun smashing your own fingers with a hammer than dealing with that shop.
Especially when you have Lewis’s 100% no worries guarantee as your other option
Hope this helps you make a decision
P