Revised wrist rest completed and tested, P-10F, 100 yards, IMI 115 JHP, video

[Joe L]

I went to the range on Thursday and shot the P-10F at 100 yards, using a shop towel over the top of the shop broom high tech, over engineered wrist rest.  Two problems showed up. 

The first problem was that the gun was a little too wobbly in the right/left direction, making it difficult to control the dot.  This was apparent just while aiming the pistol and resulted in an unusually wide horizontal spread for the groups.  Aiming the gun vertically was OK, maybe but not quite as stiff as with the ammo box, so my groups on Thursday were not presentable.  So, one modification I made before heading to the range this morning was to add a rubber mat across the top of the brushes, anchored securely in the front and back of the wrist rest.  Two reasons-the mat added some resistance right/left due to the curvature, and the mat added some fore/aft resistance because there were more bristles moving together due to contact with the mat than there were with the limp shop towel.

The second problem noted on Thursday was the rest height.  The shop brush was nearly an inch taller than an ammo box, and my head position behind the red dot sight was a little too upright as a result.  I removed one pair of 2x4's to reduce the overall rest height.  This felt much more comfortable at the range today, not too low, at least with this table and chair height available at my local outdoor range. 

Here is a short video showing one ten shot group using the new rest.

https://youtu.be/uvUACKT4lCw

I know this is a very special case for a discipline most folks aren't really interested in, so thanks for your indulgence.  What I can say about this experiment that I think is applicable to other shooting disciplines is this.  Precision shooting is a discipline of refining small details, just like when shooting a rifle at 500 yards.  Every detail matters. 

Enough CZ pistols.  I may have to get the MTR rifle and tuner out next week.  Have a good weekend, gentlemen. 

Joe

[Joe L]

I have revised the sound track by 4 frames in the video above to eliminate the irritating lack of synchronization between the gun firing sound and the gun movement.  In the first version, the sound came through before the gun ever moved.  This is due to the way I am recording the video files, I've had to shift the gun shot audio by several frames on previous (but recent) videos.   Its only out of sync when I use the "good" equipment!  I never had this problem with the expendable Canon $200 camcorders.

I'll edit the link in the first post to go to the corrected video once YouTube finishes the processing. 

Joe
 

[skin]

 Great video as always. You are spot on with long range pistol shooting. The further you stretch the range,  the little things become more important.
 I hunt with a pistol sometimes. A good steady comfortable rest is the most important thing. If you don't have both, you'll be disappointed. Thanks again.

[Joe L]

Thanks, Skin. 

Next trip to the range I am going to zero the P-10F at 100 yards with the IMI ammo while waiting for some more Atlanta Arms ammo.  I never shoot the gun at less than 100 any more and I have to explain the aim point target and the real target to folks.  It will be a lot cleaner just to put up a target in the center of the backer and let'er rip.  I think 7 clicks up and 3 left will be a good starting point. 

I'll leave the bullseye guns (97B"E" and 75B Kadet) at a 25 yard zero.  Might even change the P-10S but I'll hold off until I get some more AA ammo since it doesn't do so well with the IMI.  I'm down to less than 100 rounds of AA 115 JHP again, but have 1k of IMI.

Some rain in the forecast for the next few days, so range time will likely be limited.

Joe