Search found 291 matches

by tonyc
Fri Jan 17, 2020 9:41 pm
Forum: TECHNICAL
Topic: Hft500 fps
Replies: 6
Views: 170

Re: Hft500 fps

Jammy13 wrote:
Fri Jan 17, 2020 6:43 pm
I don't have a Hft500 but find with the 400 and 500 series rifles an increase of just over 3ftlbs from JSB 8.44gr to JSB 10.34gr.
0.3 surely?
0.4 on mine, maybe 0.5 on the longer barrelled S400 Classic.
by tonyc
Thu Jan 16, 2020 10:28 pm
Forum: TECHNICAL
Topic: Hft500 fps
Replies: 6
Views: 170

Re: Hft500 fps

I get the best grouping (and total peace of mind legally speaking) with Exacts around 11.2 - 11.3 ft.lb ie the low to mid 770's fps. I don't have a Hft500, but same as above for my Ultimate Sporter, which gives 11.6-11.7 ft lb with JSBH (as high as I'd want to go), so I'd guess you'll be getting ar...
by tonyc
Mon Jan 06, 2020 8:47 pm
Forum: Spring guns and tuning
Topic: Tx200
Replies: 2
Views: 458

Re: Tx200

I find the TX a bit problematic as the cheek piece is a bit too low to give my preferred mil-dot intercepts. For a hunting setup on the HC at 10.8fpe I use 30m, giving a maximum hold under of 1/2 mil dot at maximum magnification 9x. This is my default zero for all my .177 rifles but most have a high...
by tonyc
Sat Jan 04, 2020 12:02 am
Forum: TECHNICAL
Topic: Rowan adjustable trigger
Replies: 0
Views: 276

Rowan adjustable trigger

I've just fitted a Rowan adjustable trigger to my S400f. I've fitted several before so I'm not looking for advice... more out of interest, I wondered how other users set theirs. I like a light trigger with a long reach and a fairly short 1st stage. So I adjust all 4 screws well away from the origina...
by tonyc
Sat Dec 28, 2019 4:53 pm
Forum: TECHNICAL
Topic: After a new barrel
Replies: 6
Views: 286

Re: After a new barrel

You don't say how much spread. If this is consistently very bad, and nothing obvious is loose and pellets not clipping the silencer, send it back to AA. If it's just odd fliers or consistent groups but just a bit larger than previously, have you tried different pellets?
by tonyc
Fri Dec 20, 2019 10:24 pm
Forum: Jokes and Jest
Topic: brexit
Replies: 2
Views: 199

Re: brexit

Now I know they put the wrong message on the Vote Leave bus... we could have wrapped this up with an overwhelming majority 3 years ago! :mrgreen:
by tonyc
Thu Dec 19, 2019 5:06 pm
Forum: General airgun chat
Topic: my old air arms s410
Replies: 7
Views: 482

Re: my old air arms s410

I'll stick with the TX200HC, but I have been tempted - a 95 or 99 maybe.
I think AA have gone off track with the TDR. My only gripe with the S410 is the bolt action so what I'd like is the old shorter TDR with a 510 action.
by tonyc
Wed Dec 18, 2019 8:34 pm
Forum: General airgun chat
Topic: my old air arms s410
Replies: 7
Views: 482

Re: my old air arms s410

Roger5 wrote:
Wed Dec 18, 2019 4:40 pm
They certainly are, in fact the only PCPs that I would have, springers I prefer Weihrauch, where's the soap
I know you like tinkering, Rog... a case of necessity with HW, isn't it?! ;)
by tonyc
Tue Nov 26, 2019 11:48 pm
Forum: TECHNICAL
Topic: Weaker valve spring
Replies: 4
Views: 289

Re: Weaker valve spring

I can't help you on this one - no knowledge of this gun and regulator. As a general observation, I'd say you need to look out for loss of air efficiency as you reduce reg pressure.
by tonyc
Sun Nov 24, 2019 6:01 pm
Forum: TECHNICAL
Topic: Weaker valve spring
Replies: 4
Views: 289

Re: Weaker valve spring

Simplistically, yes, but there are other effects, especially if you are intending to make other modifications. You are changing the relative force on the valve from plenum pressure and spring pre-load, so the power curve will change. There are tuners who will tell you AA design for the S4/5xxx serie...