Search found 279 matches

by tonyc
Thu Nov 14, 2019 4:18 pm
Forum: TECHNICAL
Topic: Ftp900 reg problems
Replies: 3
Views: 449

Re: Ftp900 reg problems

It seems like the reg is not working at all, so the gun is running on cylinder pressure. You can confirm this by running the cylinder pressure lower and putting more shots through the chrono. You should see the power peak and fall away slowly - a typical unregulated curve. If you get any other profi...
by tonyc
Tue Nov 12, 2019 11:10 pm
Forum: TECHNICAL
Topic: Ftp900 reg problems
Replies: 3
Views: 449

Re: Ftp900 reg problems

Have you chronoed a full string? (rather than a few shots through the cycle). That will give you a profile which will help to determine the problems and solutions. Can you let us have your results? It seems the reg may not be working at all, so you are running unregulated at cylinder pressure. A ful...
by tonyc
Sun Nov 10, 2019 5:40 pm
Forum: Spring guns and tuning
Topic: How to identify and date TX200 Mk1, Mk2 and Mk3
Replies: 8
Views: 570

Re: How to identify and date TX200 Mk1, Mk2 and Mk3

All the TX Mk3 stocks I've handled have the "rosewood" cap. Some have AA engraved on the bottom and some don't. I've been told there's no significance to this. Some earlier Mk3 HCs have the older stocks with the plain chequering without the cap. I can't remember if I've seen caps on earlier models. ...
by tonyc
Sat Nov 09, 2019 12:54 pm
Forum: Spring guns and tuning
Topic: How to identify and date TX200 Mk1, Mk2 and Mk3
Replies: 8
Views: 570

Re: How to identify and date TX200 Mk1, Mk2 and Mk3

The one with the plain chequered beech stock could be a crossover or could be an old stock put on by a previous owner - often the case when owners want the new stock on a cherished older mark. If the barrel is unshrouded, with the moderator on the end (similar to HW97) then it's more likely to be as...
by tonyc
Fri Nov 08, 2019 9:50 pm
Forum: Spring guns and tuning
Topic: How to identify and date TX200 Mk1, Mk2 and Mk3
Replies: 8
Views: 570

Re: How to identify and date TX200 Mk1, Mk2 and Mk3

There are no official Marks for the HC. The full-length TXs had some crossover versions presumably as parts stocks were used up but the easiest identifier is the ABT ratchet notches on the cylinder - none on the Mk1, 3 regular-spaced on the Mk2 and 3 irregular-spaced notches on the Mk3. AA will tell...
by tonyc
Thu Nov 07, 2019 6:32 pm
Forum: General airgun chat
Topic: BKL mount size?
Replies: 3
Views: 686

Re: BKL mount size?

Unless you need to get clearance for something like a magazine or after-market loader, the BKL 'low' mount should be fine for a 50mm scope on an S400. I agree. I wouldn't use a medium mount as the line of sight would be too high for good cheek contact (and I like my scopes quite high). The tube wil...
by tonyc
Sat Nov 02, 2019 11:46 pm
Forum: TECHNICAL
Topic: Increase trigger weight on s400 mpr?
Replies: 9
Views: 281

Re: Increase trigger weight on s400 mpr?

Hi Tony, the spring acts on the middle sear, and I finally got myself another TDR in .22 8-) Clash in terminology... is the lever the trigger acts on a sear? There's no break point, and any wear at point of contact is not going to affect the trigger function. Whatever, I agree with TMP, I wouldn't ...
by tonyc
Fri Nov 01, 2019 8:55 pm
Forum: General airgun chat
Topic: Rowan single shot loader
Replies: 3
Views: 175

Re: Rowan single shot loader

Your enthusiasm has me interested... but I don't even need one! :roll:
£47! Can't justify it... or can I? :?
by tonyc
Fri Nov 01, 2019 8:48 pm
Forum: TECHNICAL
Topic: Increase trigger weight on s400 mpr?
Replies: 9
Views: 281

Re: Increase trigger weight on s400 mpr?

I'm not convinced there will be any more sear wear than with the original spring. The spring acts on the bottom sear, opposing the force applied by the trigger. So the only additional load is on the pivot pin through the bottom sear. I wouldn't have thought this is enough to cause any problems. The ...
by tonyc
Wed Oct 09, 2019 7:51 pm
Forum: TECHNICAL
Topic: Indexing post
Replies: 7
Views: 303

Re: Indexing post

I replaced mine too. I bent the old spring chewing up a 3D printed mag. :o
I bent the spring back and got a free replacement (modified) mag . But the advance wasn't 100% reliable and was scratching the AA alloy mags. No problems with the new post. And I've decided not to use the 3D printed mag!