TargetTalk

Having done some grip work on my Morini,the only other thing I'd like to try is extending the back of the palm shelf as it's now about 1cm short of my wrist joint....how close can I go and stay legal under ISSF Rules?

You are unusual! The common situation is cutting them because they are too long. In any case the palm shelf must NOT touch the ulna, generally that commonly means the flexion crease on the wrist.

8.4 EQUIPMENT AND AMMUNITION
8.4.1 Standards for All Pistols

8.4.1.1 Grips. For dimensions and details of grips see the PISTOL SPECIFICATION TABLE (8.12) and the PISTOL CONFIGURATION DRAWINGS (8.13).

a) Neither the grip nor any part of the pistol may be extended or
constructed in any way that would allow it to touch beyond
the hand. The wrist must remain visibly free when the pistol
is held in the normal firing position. Bracelets, wristwatches,
wristbands, or similar items are prohibited on the hand and
arm that holds the pistol; and

b) Adjustable grips are permitted providing that when they are
adjusted for the athlete's hand they conform to these Rules.
Grip adjustments are subject to random Equipment Control
checks to ensure that they conform with these Rules.

You can get the full version of the rule book here: http://www.issf-sports.org/theissf/rules.ashx

Hope this helps

Is this correct or not?

Well, this is good enough for a medal in the Olympics...

A simple test is with the pistol in your shooting hand and arm in shooting position,
try to tilt the pistol both up and down to see if the wrist is free to move.
you should be able to get about 45 deg up and 30 deg down.
This test takes away the argument of where the hand ends and the wrist starts.

No prizes for guessing if this shooter won Gold.

In my view this is the correct grip fit

One other thing...

Before you add something to the back of the palm shelf, measure how much you can add.
Don't forget that the pistol still has to fit in the box (300mm*150mm*50mm), and Pardinis are a tight fit once you pass the medium size grips.

So my advice is to put the pistol in the box first, measure how much you can add and only then make the alterations.

If you don't have a measuring box, make a simple one with some scrap wood.
Make sure the interior is a precise 300mm*150mm (+0 to +1mm tolerance int the box construction).
The 50mm part can easily be measured with a set of calipers, don't exceed the width of the grip and you should be ok.

Hope this helps

I don't understand. Jun Hong Kim grip is outside the rules??????

Grip adjustments are subject to random Equipment Control
checks to ensure that they conform with these Rules.

Go figure.

Yes , but that grip is at least 2cm too long.....

rmca wrote: The 50mm part can easily be measured with a set of calipers, don't exceed the width of the grip and you should be ok.

Be careful of this advice, especially if your gun is angled in the grip.

The grip might fit in the box, but the end of the barrel / compensator / front sight mount needs to at the same time.

This is a fairly common problem, notably with Steyrs and Walthers.

On air pistol I totally agree.
For .22 pistol it is not as critical...

Anyway, I said "if you dont have access to a box".
All measures are important and can get you disqualified.

Hope this helps