Q:

Adjusting tophat when you have no chrony

On my stock Talon SS it looks like you could drive a truck under the tophat…… whats a good starting point for adjusting it? I’ll have my chrony back in a couple weeks and can tune it more finely then.

Talon/Talon SS

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Viewing 8 replies - 1 through 8 (of 8 total)

What caliber are you shooting? My Condor runs at 920-930fps in .22 (Jsb 18gr). If you zero your rifle at 33yrds, do a 110yrd group, if it lands on your 5 mildot at 10x (true mildots)mag you’ll know that you’re in that velocity zone. If not it’ll give you a rough idea of what velocity your rifle is giving you. In .20 at the same velocity with Jsb 13,7s, it’ll fall on the 6th mildot(10x mag).
Hope it helps.

quote imott:

quote knifemaker:

I would start at .070″ at first. If you adjust it out to make the breach tight, the gap will be huge, as will the wasted air, not to mention too damed fast for any kind of accuracy!

I use an o-ring behind the tophat. Should I measure from the o-ring or from the brass ignoring the o-ring? What size o-ring? 😉

The best way to do it is get a Chrony and test. This will determin what your Top Hat needs to be sta at. Each gun is different. AF guns are good tough reliable guns. But precision is not their long suite. So a precise answer can’t be given. Hence the need for testing.

Sorry if I came on too strong. But many of us old timers here have learned the hard way that the folks you talk to on the phone at AF really don’t shoot the guns and don’t know shit other than starting spec’s as shipped. And we have FAR exceded factory anything. 😉 As a group, We test more in a day than AF has in its entire existance. No brag, just fact.

KnifeMaker

O ring size for the Condor stem for going behind the top hat is auto store part # R-03. The folks at AF wouldn’t be able to tell you that either! 😉

At least B.B pelliter isn’t still there fucking up guns! 👿 He is what our British members here would call a Wanker. 🙄 😆

quote knifemaker:

I would start at .070″ at first. If you adjust it out to make the breach tight, the gap will be huge, as will the wasted air, not to mention too damed fast for any kind of accuracy!

I use an o-ring behind the tophat. Should I measure from the o-ring or from the brass ignoring the o-ring? What size o-ring? 😉

quote deadeye956:

Original advice was deleted because I am a newbie and shouldn’t be sharing advice from what the manufacturer has told me.

As knifemaker has blessed us with his presence please adhere to his advice. My advice as per manufacture was wrong and I will not post any more advice without first approval from knifemaker aka airgun king.

Being new, you are being kind of abrupt.

I know that Knifemaker came on kind of strong in his post in your other thread…But none of us want you to break anything unnecessarily. We are all here to help each other. Sometimes some of us speak in a way unfamiliar to the new. Spend a little more time around here and you will find that this is one of the more friendly and extremely helpful airgun sites on the net.

Also, sometimes the manufacturer will tell you something to be on the safe side to avoid liability. After all, they are “the experts”! Those of use who have chosen to experiment with our AF rifles are more willing the share the secrets to opening the real potential of the rifles. Heck, I think that AF uses this site as an R&D dept! Look at the Condor SS and the Sound-Loc baffle they are now selling!

There are only a few “Kings” around here and NONE of them ever truly attempt to stand above the others.

PEACE :8:

I would start at .070″ at first. If you adjust it out to make the breach tight, the gap will be huge, as will the wasted air, not to mention too damed fast for any kind of accuracy!

And only fill to 2500 as a starting point with the power wheel set at about 3. This ought to put you shooting in a flat shot string.

A chrony is a MUST for proper tuning of an AF rifle.

Original advice was deleted because I am a newbie and shouldn’t be sharing advice from what the manufacturer has told me.

As knifemaker has blessed us with his presence please adhere to his advice. My advice as per manufacture was wrong and I will not post any more advice without first approval from knifemaker aka airgun king.

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