Precihole air rifles trigger tuning

[fantumfan2003]

Nice work and shooting Pratik.

M.

[pratik_mahale]

Posting some of today’s best groups with Nitro Piston Pegasus
RWS 7.0 grain flat head

RWS at 25 Yards.jpg

Gsmith High Impact 9.6 grain & Precipell Field Target 8.2 grain round hard

Gsmith at 25 Yards.jpg

Gsmith High Impact pellets knock down power is tremendous it just shattered the ceramic tiles

[airgun_novice]

Superb job Pratik. Planning to visit PH this Sat Morning. Will get a 500-pellet .177 FH tin. Last time the lady wasn't there and I was in a hurry, so could not wait. My only concern was that they being heavier (.53g v/s .45g of R-10 or H&N(FM)) may not perform to expectations in the AP. But what we see here is consistency and so am more than ever encouraged to definitely try it out, albeit the FH version and that too in the Pegasus. regs, A.

[pratik_mahale]

Yes I also feel they are bit heavy for AP but you can try it
Accuracy of PH pellets is superb

[brihacharan]

Hi Pratik,
> Great grouping with Precipel Field Target 8.2gr Round Heads...
> My experience with Precipel 15gr RH in ORION NP 0.22cal is extremely satisfactory...
> Goes to show their QC is quite demanding with their manufacturer
Briha

[pratik_mahale]

Theoben evolution trigger diagram

evo_trig.pdf

[Basu]

Thanks Pratik for posting the diagram of Precihole Trigger box.
I am sure the owners of Precihole will find it very handy in case they come accross any such issues.
By the way , how is the performance of PHFH ??
Is it as close as RWS ??

Basu

[pratik_mahale]

As I am not doing 10 meter target shooting never used PHFH pellets
AGN can give u proper reply on this

[brihacharan]

This trigger is factory set and we do not recommend adjusting it yourself unless you know what you are doing.
1. Do not adjust the depth of engagement to a knife-edge, this will make the trigger unsafe. However, by decreasing
the depth of engagement a small amount will reduce the amount of travel for the first stage of trigger movement.
2. 2nd stage pressure is adjustable by rotating a 2 mm Allen key - clockwise for higher-pressure etc.
3. 2nd stage let off position is factory set, but can be fine tuned if necessary by using a screw driver on the adjuster
screw slot - Clockwise for 2nd stage to be felt earlier.

> Thanks Pratik for posting this valuable information....
Briha

[pratik_mahale]

Thanks sir
I have done some more R&D with the trigger
There was some play in the Top Part Trigger (Item No. 12 in SX100 Series Spare List) & it causing more friction with the trigger housing so I use very thin washer with top part trigger ( Just like Item No. 2 Washer Barrel Piece) to eliminate the friction.
It does not reduce trigger pull weight but feel very smooth & light

[asifrazak911]

This trigger is factory set and we do not recommend adjusting it yourself unless you know what you are doing.
1. Do not adjust the depth of engagement to a knife-edge, this will make the trigger unsafe. However, by decreasing
the depth of engagement a small amount will reduce the amount of travel for the first stage of trigger movement.
2. 2nd stage pressure is adjustable by rotating a 2 mm Allen key - clockwise for higher-pressure etc.
3. 2nd stage let off position is factory set, but can be fine tuned if necessary by using a screw driver on the adjuster
screw slot - Clockwise for 2nd stage to be felt earlier.

> Thanks Pratik for posting this valuable information....
Briha

Sir, Does this mean that the second stage can be adjusted too by turning the allen and not by removing the trigger assembly and smoothing components?