Test Grip

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brent375hh
Posts: 742
Joined: Wed Apr 17, 2013 8:04 am
Location: Minneapolis

Test Grip

Post by brent375hh »

I could not bring myself to clamp any part of my pistol in a vise, so If am going to try this the next time the shop is devoid of projects.
Attachments
IMG_20210904_160053338.jpg
dontshootcritters
Posts: 215
Joined: Mon Dec 05, 2011 4:24 am
Location: new zealand

Re: Test Grip

Post by dontshootcritters »

Just a little more sanding and it will be mint.
brent375hh
Posts: 742
Joined: Wed Apr 17, 2013 8:04 am
Location: Minneapolis

Re: Test Grip

Post by brent375hh »

dontshootcritters wrote: Sun Sep 05, 2021 4:07 am Just a little more sanding and it will be mint.
It is only to put in a vise for pellet testing.
Lenny
Posts: 208
Joined: Thu Dec 21, 2006 8:03 am

Re: Test Grip

Post by Lenny »

What size is it?
brent375hh
Posts: 742
Joined: Wed Apr 17, 2013 8:04 am
Location: Minneapolis

Re: Test Grip

Post by brent375hh »

Lenny wrote: Sun Sep 05, 2021 11:20 am What size is it?
Vise Jaw Size.
Cvb
Posts: 29
Joined: Sat Oct 19, 2019 9:32 am

Re: Test Grip

Post by Cvb »

Nice grip :)
I will make similar grip for my Toz-35 on the next week.

I think to clamp air pistol from air cylinder like about this:
https://www.targettalk.org/viewtopic.ph ... ellet+test
brent375hh
Posts: 742
Joined: Wed Apr 17, 2013 8:04 am
Location: Minneapolis

Re: Test Grip

Post by brent375hh »

Cvb wrote: Sun Sep 05, 2021 3:06 pm Nice grips :)
I will make similar grip for my Toz-35 on the next week.

I think to clamp Air pistol from air cylinder like about this:
https://www.targettalk.org/viewtopic.ph ... ellet+test
IMO the cylinder blocks would be more effort to make, and then the cylinder would have to be cranked on pretty hard to insure it not moving.
Cvb
Posts: 29
Joined: Sat Oct 19, 2019 9:32 am

Re: Test Grip

Post by Cvb »

brent375hh wrote: Sun Sep 05, 2021 3:23 pm IMO the cylinder blocks would be more effort to make, and then the cylinder would have to be cranked on pretty hard to insure it not moving.
I was thinking of trying about this kind of jaw protection with my AP:
https://www.ebay.com.au/p/1039599543
JFuller
Posts: 95
Joined: Mon Apr 23, 2007 8:42 pm
Location: British Columbia

Re: Test Grip

Post by JFuller »

[quote=Cvb post_id=311997 time=1630875383 user_id=20089]
[quote=brent375hh post_id=311995 time=1630873385 user_id=12128]
IMO the cylinder blocks would be more effort to make, and then the cylinder would have to be cranked on pretty hard to insure it not moving.
[/quote]

I was thinking of trying about this kind of jaw protection with my AP:
https://www.ebay.com.au/p/1039599543
[/quote]

These have worked very well for me, https://www.homedepot.com/p/BESSEY-Non- ... /204986223
Gwhite
Posts: 3445
Joined: Sat Sep 04, 2004 6:04 pm
Location: Massachusetts

Re: Test Grip

Post by Gwhite »

I needed to try to repair/rebuild a Hammerli AP40 cylinder a while back. The problem was hanging onto it securely so I could give a good heave on a pin spanner to unscrew the valve assembly. I 3D printed a set of vise jaws:
Vise w Cylinder & Spanner (sm).jpg
Hammerli AP40 Cylinder Vise Jaws.pdf
(128.85 KiB) Downloaded 119 times
I've also got designs to fit Steyr, Morini, & Benelli Kite cylinders. They would certainly be secure enough to ensure good accuracy for testing.

The designs I made are very specific to the vise I have, but the critical cylinder gripping geometry is very simple. You just need to add space for the silicone rubber sheet to the cylinder diameter.
Rover
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Joined: Sat Nov 15, 2008 4:20 pm
Location: Idaho panhandle

Re: Test Grip

Post by Rover »

Cvb wrote: Sun Sep 05, 2021 3:56 pm
brent375hh wrote: Sun Sep 05, 2021 3:23 pm IMO the cylinder blocks would be more effort to make, and then the cylinder would have to be cranked on pretty hard to insure it not moving.
I was thinking of trying about this kind of jaw protection with my AP:
https://www.ebay.com.au/p/1039599543
$34 AUS??? Get an old inner tube and get busy!
brent375hh
Posts: 742
Joined: Wed Apr 17, 2013 8:04 am
Location: Minneapolis

Re: Test Grip

Post by brent375hh »

Since some of you thought I was making a grip, here is the final result of my efforts. Since I have a case of RWS 4.49, I didn't want to pellet test. I varied velocity until I got the best groups with what I already had.
Attachments
IMG_20211031_073829146_compress61.jpg
william
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Joined: Mon Mar 01, 2004 12:31 pm
Location: New Hampshire, USA

Re: Test Grip

Post by william »

So here we are, almost 2 months later, and all you've learned is what velocity your vise likes with the specific batch of pellets you currently have. Next time you buy pellets, it's all down the drain.

Ya shoulda just listened to Rover (whatever he said).
brent375hh
Posts: 742
Joined: Wed Apr 17, 2013 8:04 am
Location: Minneapolis

Re: Test Grip

Post by brent375hh »

william wrote: Sun Oct 31, 2021 9:37 am So here we are, almost 2 months later, and all you've learned is what velocity your vise likes with the specific batch of pellets you currently have. Next time you buy pellets, it's all down the drain.

Ya shoulda just listened to Rover (whatever he said).
Thanks for all the positive and inspiring comments as always.
You probably wonder why all the major manufacturers test their guns too. They should all just come with a note that says Rover thinks it's good enough with RWS basics, and his follower agrees.
william
Posts: 1470
Joined: Mon Mar 01, 2004 12:31 pm
Location: New Hampshire, USA

Re: Test Grip

Post by william »

brent375hh wrote: Sun Oct 31, 2021 9:42 am Thanks for all the positive and inspiring comments as always.
You're entirely welcome. I'm not here to be positive or inspiring, or to encourage what my 10th grade history teacher appropriately called "mental masturbation."
brent375hh
Posts: 742
Joined: Wed Apr 17, 2013 8:04 am
Location: Minneapolis

Re: Test Grip

Post by brent375hh »

william wrote: Sun Oct 31, 2021 10:00 am
brent375hh wrote: Sun Oct 31, 2021 9:42 am Thanks for all the positive and inspiring comments as always.
You're entirely welcome. I'm not here to be positive or inspiring, or to encourage what my 10th grade history teacher appropriately called "mental masturbation."
I think the RWS testing facility could use you as a greeter to all the athletes that come to test there.
B Lafferty
Posts: 459
Joined: Mon Feb 12, 2018 11:23 am

Re: Test Grip

Post by B Lafferty »

william wrote: Sun Oct 31, 2021 10:00 am
brent375hh wrote: Sun Oct 31, 2021 9:42 am Thanks for all the positive and inspiring comments as always.
You're entirely welcome. I'm not here to be positive or inspiring, or to encourage what my 10th grade history teacher appropriately called "mental masturbation."
I have to say that I can only recall one post of yours here that added in even the most remote way to reason based discussion. Believe me, please, when I say compassionately that I see in you a rather circumscribed, trauma affected psyche that actually has far more to offer than what you are able to display here. Be well, William.......
"No mud; no Lotus."-- Thich Nhat Hanh
B Lafferty
Posts: 459
Joined: Mon Feb 12, 2018 11:23 am

Re: Test Grip

Post by B Lafferty »

brent375hh wrote: Sat Sep 04, 2021 4:05 pm I could not bring myself to clamp any part of my pistol in a vise, so If am going to try this the next time the shop is devoid of projects.
There must be a being somewhere on the planet for whom that would be a near perfect grip.......an executive at the Vice cable channel, perhaps?
"No mud; no Lotus."-- Thich Nhat Hanh
Rover
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Joined: Sat Nov 15, 2008 4:20 pm
Location: Idaho panhandle

Re: Test Grip

Post by Rover »

" They should all just come with a note that says Rover thinks it's good enough with RWS basics, and his follower agrees."

At last!!! The perfect Pivot Man for the circle jerk we've been waiting for.
brent375hh
Posts: 742
Joined: Wed Apr 17, 2013 8:04 am
Location: Minneapolis

Re: Test Grip

Post by brent375hh »

I am happy with the end result for a 5 shot group.

Knowing your equipment is performing, at least for me, is better than being reasonably sure that it is good enough.
Attachments
Screenshot_20211031-142811.png
Last edited by brent375hh on Sun Oct 31, 2021 6:57 pm, edited 1 time in total.
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