Hold Sensitivity With Pcp's

[mattwhite 1,993]

So with far too much time on my hands today I've been looking at all kinds of ways to improve accuracy etc. Don't get me wrong, this 100 is the most accurate pcp I've ever owned but you know how you get when you research one thing and something else crops up so....I was wondering has anyone had any experience with a hold sensitive pcp or have you noticed that holding in a particular position shifts your p.o.I.

[villaman 9,982]

Never noticed it at all and i shoot right and left handed in different positions

[mattwhite 1,993]

Never noticed it at all and i shoot right and left handed in different positions

 

Not sure I could hit a huge barn door left handed pal so fair play to you??

[secretagentmole 1,701]

If you hold it by the barrel you probably will change POI!

[steg 609]

Problem i had a while back was shooting out of the kitchen window when it was way to wet to get out. Used to rest the barrel/mod in the corner of the window frame and found poi was 1" high at 28yds. Not what i'd call hold sensitivity but i avoid resting the mod on fence posts and the likes now.

[Rez 4,961]

Had to check the date for a moment then... "Its not the first of April is it?"

[mattwhite 1,993]

Had to check the date for a moment then... "Its not the first of April is it?"

I thought it may cause a bit of "what the f#*k is he on about" but I had seen on a couple of articles, mainly from the states that people thought shouldering the rifle differently and gripping the heck out of it may be changing the poi........I'll get me coat?

[secretagentmole 1,701]

 

Had to check the date for a moment then... "Its not the first of April is it?"

I thought it may cause a bit of "what the f#*k is he on about" but I had seen on a couple of articles, mainly from the states that people thought shouldering the rifle differently and gripping the heck out of it may be changing the poi........I'll get me coat

 

 

No that will be scope error, if they have not positioned the scope properly looking through it at a slightly different angle will change the POI. That is why Adi of A&M Customs does an impression of a meerkat when testing a gun, ensuring that he is looking through the scope properly and the POI was not changing...

[mark williams 7,568]

Scope cant, or shooting with the vertical cross hair not being vertical, as in - shooting off a tilting bi pod incorrectly, shooting sticks or even from a standing/ supported position.

 

Check for scope cant Matt is my humble first thoughts and then check you are holding your rifle with the vertical crosshair, truly vertical.

 

 

atb

[steg 609]

Tenner for one of these..only bought it to check the rifle was level before setting the scope up vertical with a plumbline.

 

Kept it on ever since. ( not hurting anything )

[pianoman 3,589]

I could write a chapter on "Rifle Harmonics In The Hold" but that would bore you senseless.

 

Truth is, there is a degree of hold sensitivity with a PCP. Not as much as spring rifles have, but enough to shift a scope off the POI from an otherwise perfectly set zero if you address the rifle with an inconsistant hold from shot to shot, or a tight grip or uneven hand pressures and too much back-pressure at the shoulder or none at all. .

 

Simply enough, if you need to learn to shoot a PCP as you would a spring rifle, you'd solve so many handling accuracy issues at once.. Nice easy, light and forgiving hold. Nothing grippy or tight and stifling the firing cycle. A gentle rest of the forend in your palm or set your bipod nice and level to the ground beneath. Light hold with the controlling hand and PRESS the trigger gently and loose the shot away. Not pull it or snap it back on firing.

 

And don't squint when you shoot!

 

A PCP rifle will forgive a degree of coarse or inaccurate and indelicate handling, more so than spring rifles, which do not forgive any heavy handling. But they are not totally infallable to rough, ham-fisted handling, poor scope set-up, coarse trigger technique and so on.

[Deker 3,478]

Its nothing particularly to do with being a pcp, it can happen to any type of rifle, rimfires, centrefires and BBs, everything you can think of.

 

It will almost always be down to unusual pressure/movement on the barrel, most commonly caused by flexible stocks or other unusual pressure!

 

This is quite commonly seen when using a bipod, POI can often shift!

 

Edited May 2, 2016 by Deker

[mattwhite 1,993]

I could write a chapter on "Rifle Harmonics In The Hold" but that would bore you senseless.

 

Truth is, there is a degree of hold sensitivity with a PCP. Not as much as spring rifles have, but enough to shift a scope off the POI from an otherwise perfectly set zero if you address the rifle with an inconsistant hold from shot to shot, or a tight grip or uneven hand pressures and too much back-pressure at the shoulder or none at all. .

 

Simply enough, if you need to learn to shoot a PCP as you would a spring rifle, you'd solve so many handling accuracy issues at once.. Nice easy, light and forgiving hold. Nothing grippy or tight and stifling the firing cycle. A gentle rest of the forend in your palm or set your bipod nice and level to the ground beneath. Light hold with the controlling hand and PRESS the trigger gently and loose the shot away. Not pull it or snap it back on firing.

 

And don't squint when you shoot!

 

A PCP rifle will forgive a degree of coarse or inaccurate and indelicate handling, more so than spring rifles, which do not forgive any heavy handling. But they are not totally infallable to rough, ham-fisted handling, poor scope set-up, coarse trigger technique and so on.

Cheers Simon.

It kind of makes sense to me that "every action has an equal and opposite reaction"

Meaning that when your sending a snug fit pellet away at air rifle speeds there has to be, albeit very small, some form of movement and its managing that movement that interests me. I think most people go pcp instead of springer under the illusion that they are point and fire with no effect from recoil at all and although it's nowhere near the response a springer gives you, it will still react.

You only need to watch a slow motion release of a pellet from a pcp through scope cam to see the jump.

[mattwhite 1,993]

Its nothing particularly to do with being a pcp, it can happen to any type of rifle, rimfires, centrefires and BBs, everything you can think of.

 

It will almost always be down to unusual pressure/movement on the barrel, most commonly caused by flexible stocks or unusual pressure!

 

This is quite commonly seem when using a bipod, POI can often shift!

 

Im with you on that Deker.

I was testing this last night and noticed with the bipod the groups were tight but not as tight as rested into a bean bag.

[mark williams 7,568]

Becoming a very interesting post Matt,

 

Yep, I`m with Simon`s reasoning.

Most of the lads on here know I much prefer static hunting from a hide off shooting sticks or bi pod.

When you think about it, the yokel or V on a tripod shooting stick is nigh on "constant", unchanging, compared to the human, hand held, shot placement. Unless, as you say, off a bench and bean bag, which doesn`t happen much out in the fields.

So springer, or pcp shot and zeroed from sticks is an extremely efficient "constant, unchanging hold" - ​for me.

 

 

 

atb

 

 

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