Hw97 guru’s

[T 20]

Perfectly normal for the bracket to move.

[astraman1]

Cheers mate I thought it may but be on to the shooting tomorrow then see how it groups

[astraman1]

Well had a few shots with it and grouping is terrible first group was 10 shots and they spread over about 2 1/2 inch chrono said 16fps difference highest out the 10 shots was 564 FPS lowest was 548 put another 50 shots through and did another 10 shots group was about 2 inch and chrono says 13 FPS difference high being 570 FPS low being 557

Currently have it stripped for investigation

[averageplinker]

Is it a 97k? Has something worked loose in the silencer causing clipping? Very intriguing.

[astraman1]

Yes it’s a 97k can’t hear anything rattling around cant really see properly till get some daylight shall update tomorrow

[JLB]

You shouldn't see much difference in point of impact for 13fps if anything at all unless shooting 50 yards plus. Did it group ok before you sold it ? Try giving the barrel a good clean and see how it shoots then. I've come across this once before, and funny enough that was with a HW97 MK1, is this a MK1 ? No matter what I did it wouldn't group, so broke it for spares, put it down to a bad barrel. Let us know how you get on.

John

[astraman1]

Shooting at 25 meters yes it’s a mk1 it was shooting good before but not used it for a year or so before sale had a look down the barrel can’t see owt wrong lad who I sold it to cleaned the barrel might try releasing it

[Artfull-Bodger]

Well had a few shots with it and grouping is terrible first group was 10 shots and they spread over about 2 1/2 inch chrono said 16fps difference highest out the 10 shots was 564 FPS lowest was 548 put another 50 shots through and did another 10 shots group was about 2 inch and chrono says 13 FPS difference high being 570 FPS low being 557

Currently have it stripped for investigation

I take it your using 16 grain?

I have just built a 97 out of spare parts I had in the bits n bobs boxes, I saw very similar groups to you with Falcon accuracy, now these usually work extremely well In a HW barrel, I then tried Premiers and FTT and the FTT were doing 20mm five shot groups at 50yds!

you can physically feel the FTT heads bite into the rifling as you load whereas the Falcons fell in, so I can only surmise the barrel is a first off production run when the mandrel was new.

The bracket is always slightly loose by the way, If you have any concerns about it run a liner of tank tape on either side of the stock inletting and trim it to the slots with a scalpel, this helps the stock screws pull the rifle down into the inletting and eliminate vibration.