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 Post subject: Air rifle palm blocks
PostPosted: Tue Oct 31, 2017 11:20 am 
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Joined: Tue Mar 09, 2004 9:18 am
Posts: 495
Location: Charlottesville, VA
I am trying to make sure that the NRA precision air rifle rules and ISSF rules are not drastically different. Also, I would like to make sure the collegiate club rifle shooters and coaches understand what the rules are.

ISSF rule 7.4.2.2 for air rifle states: "A thumb hole, thumb rest, palm rest, heel rest and spirit level are prohibited. A heel rest is any protrusion or extension on the front or side of the pistol grip designed to prevent the hand from slipping. The pistol grip, cheek-piece or lower part of the stock may not be anatomically formed."

Rule 7.4.5.2 Palm Rests states: "A palm rest is any removable attachment or extension below the fore-end that aids the support of the rifle by the forward hand. Such extensions must not extend more than 200 mm below the centerline of the barrel."

Picture 7.4.4.1 shows a palm block / palm rest below the fore-end which is adjustable and removable on many of the guns of current manufacture.

7.4.2.2 and 7.4.5.2 seems to contradict one another. 7.4.2.2 says a palm rest is prohibited. 7.4.5.2 says in the first sentence that a palm rest is any removable extension while in the second sentence it implies that such an extension is allowed by stating what its maximum depth can be.

What is the current interpretation of these clearly contradictory rules? Obviously, the ISSF is allowing these palm rests. Since they are, what are the limitations. They must be within the maximum 60mm width and the new maximum 120mm depth. Can they be angled front to back? Is there any limit on the attachment point or attachment method? At the new 120mm depth one will be able to wrap their fingers around the extension; is this allowed? Can they be stippled or have grooves cut in them to help with gripping, possibly at odds with rule 7.4.2.6 "Material that gives increased grip may not be added to the fore-end, pistol grip or lower part of the stock", i.e. what is the difference in manufacturing the part to be non-slick to begin with and adding something to make it non-slick, such as gluing on a piece of elbow pad material or sandpaper?

Any help with this would be greatly appreciated.


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PostPosted: Tue Oct 31, 2017 12:24 pm 
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Joined: Sun Sep 04, 2016 10:59 am
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Location: A new global Great Britain
The "palm rest" prohibited in 7.4.2.2 is the type fitted to the pistol grip. Aka heel rest or palm shelf.

Badly worded you might say. I wouldnt dare.


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PostPosted: Tue Oct 31, 2017 1:07 pm 
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Joined: Tue Mar 09, 2004 9:18 am
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Location: Charlottesville, VA
Palm rest and heel rest are different. Palm rest goes under the fore-end of the stock (7.4.5.2) and heel rest goes on the pistol grip (7.4.2.2).


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PostPosted: Tue Oct 31, 2017 6:04 pm 
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Joined: Sun Sep 04, 2016 10:59 am
Posts: 500
Location: A new global Great Britain
PaulB wrote:
Palm rest and heel rest are different. Palm rest goes under the fore-end of the stock (7.4.5.2) and heel rest goes on the pistol grip (7.4.2.2).

Exactly, so 7.4.2.2 needs the words "palm rest" deleting. But it never will be corrected because "everyone knows what they mean"


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