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Author Topic: What causes "donut holing" in a shot pattern?  (Read 1942 times)

Offline rickevans

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Re: What causes "donut holing" in a shot pattern?
« Reply #30 on: July 06, 2012, 09:54:27 AM »
"I am missing closer than ever..." is the quote I am usng form now on.
R. C. (Rick) Evans
TMA# 232 Expires 7/5/22
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Offline Captchee

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Re: What causes "donut holing" in a shot pattern?
« Reply #31 on: July 06, 2012, 11:01:43 AM »
Quote from: "Loyalist Dave"
Thanks for the photos.  I'm gonna need to find a guy at the ATF lab with a high speed camera and convince him it's important to test this and get a photo of the wad actually passing through the shot.  (The lab is right down the street from me).  

GAH!     :rt th

LD

 OR , better yet , start collecting the writings from the likes of Greener and Pope .
 be on the look out for old Lyman shotgun books  even if they are about breech loaders . the reason is that many of these also carry large sections on BP  both cartradge and muzzleloading .
 they will give you tons of useful date to work with and consider .
 i cant seem to find the photos i wanted  but here is a couple for you as well as a slow motion clay shoot  video . now most of the shots in this vedio are with shot cups from modern  guns . but there are are a coupel without cups  around  the ,49 mark and  further into the video .
 but notice also , how long the shot gup stays with the shot  even when it opens up

 yet another fun video . granted modern guns . but take notice of the diffrence between the use of shot cups and thos with just wads and wads with cups


some other fun photos




annnnnnnnnnd  :hairy

Offline Stormrider51

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Re: What causes "donut holing" in a shot pattern?
« Reply #32 on: July 07, 2012, 11:15:16 AM »
I'm impressed by how far those shot cups flew before falling away.  The opening petals or arms must create an incredible amount of drag and I'd have thought they would fall away within a few feet of the muzzle much as a patch does from a round ball.  Still sitting around waiting for USPS to deliver my smoothie.  Then I can start some patterning tests.

Storm
Life is an adventure.  Don't miss it.
Member #632

Offline Gambia

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Re: What causes "donut holing" in a shot pattern?
« Reply #33 on: July 08, 2012, 12:13:18 AM »
Quote from: "Stormrider51"
I'm impressed by how far those shot cups flew before falling away.  The opening petals or arms must create an incredible amount of drag and I'd have thought they would fall away within a few feet of the muzzle much as a patch does from a round ball.  Still sitting around waiting for USPS to deliver my smoothie.  Then I can start some patterning tests.
Storm
Any tests scheduled for tomorrow or are you still waiting?
William

Offline Stormrider51

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Re: What causes "donut holing" in a shot pattern?
« Reply #34 on: July 08, 2012, 12:59:18 AM »
William,
Just sent you an email.  I was hoping the smoothie would arrive today but no such luck.  Looks like it will be Monday.  Plus I still need to come up with some shot.  Regardless, you are welcome to come out to cast some balls.

Storm
Life is an adventure.  Don't miss it.
Member #632

Offline Gambia

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Re: What causes "donut holing" in a shot pattern?
« Reply #35 on: July 08, 2012, 03:03:14 AM »
I may take you up on the offer, talk to you later on this morning after I catch some ZZZZZZZZZZZ'sss; 2:02am here right now; more coffee anyone?