Hello my friends!
After a big prone break,I fell down today for a 300m SCATT match.
I didn't expect any high scores,just an evaluation of my position.
I had a small pulse coming from the wrist(handstop hand)which gave me a vertical trace movement.
Could this be the cause of the vertical spread?
I must also mention that the trigger weight is a bit heavy (don't know exaxtly but much more than my small bore's)and it is the lightest setting on my 300er.(CISM standard 1.5kg trigger,with the weight spring removed.could be 200grams?)
Thank you!
Vertical spread at 300m prone SCATT
Moderators: pilkguns, Marcus, m1963, David Levene, Spencer
Re: Vertical spread at 300m prone SCATT
Most likely.tsokasn wrote: I had a small pulse coming from the wrist(handstop hand)which gave me a vertical trace movement.
Could this be the cause of the vertical spread?
What was the "F-Factor" set to?
It's been a while since I used SCATT but the recommended figure of 65 comes to mind...
As I understand it, the F-factor scales how the muzzle's velocity at the moment of release transfers to the point of impact
So a value of Zero means that the shot goes where the barrel was pointing at the moment of release like a laser, whereas a high value will flip the bullet in the direction that the barrel is moving when the shot is fired as would happen to a bullet in real life.
If the F-factor is set too high it can exaggerate the effects of pulsing - I remember doing some live firing and comparing the POI to the SCATT POI and adjusting the F-Factor accordingly. I can't remember the value I ended up with though.
Bottom line though - get rid of the pulsing.
As I understand it, the F-factor scales how the muzzle's velocity at the moment of release transfers to the point of impact
So a value of Zero means that the shot goes where the barrel was pointing at the moment of release like a laser, whereas a high value will flip the bullet in the direction that the barrel is moving when the shot is fired as would happen to a bullet in real life.
If the F-factor is set too high it can exaggerate the effects of pulsing - I remember doing some live firing and comparing the POI to the SCATT POI and adjusting the F-Factor accordingly. I can't remember the value I ended up with though.
Bottom line though - get rid of the pulsing.
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WesternGrizzly
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David Levene
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They are probably as well placed as anyone to suggest an f-coefficient for the 300m we are discussing here. It will not necessarilly be anywhere near the suggested starting point for smallbore.dlinden wrote:The Raab's recommend an F-setting for smallbore prone shooting in the range of 25-30. They import and sell the SCATT as well as coach a lot of people.