Steel Shot Penetration Table

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Steel Shot Penetration Table

Postby davkrat » Sun Nov 29, 2009 6:56 pm

I put together a spreadsheet with some steel shot pellet sizes: BB, 1, 3, 5, and 7 at three velocities 1400, 1550, and 1700 fps. All the data is at 59 degrees F and at sea level. I put in the yardage for 600 fps. and penetration of 1.28" (ducks) 1.80" (geese). The velocity is in feet per second, the Time of Flight in seconds and the penetration is in inches. I thought some people might find it useful. There may be a few errors as I had to transcribe everything in to Excell.

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Re: Steel Shot Penetration Table

Postby ALLDRAKES » Sun Nov 29, 2009 7:45 pm

Good info........shocked at the little difference in penetration between loads at 40 yards with the same size shot just different velocity.
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Re: Steel Shot Penetration Table

Postby Ned S » Sun Nov 29, 2009 7:56 pm

davkrat, Thanks for alot of hard work. I shall make a copy. I have my own charts for the loads I shoot but at 32F and 4000 ft where most of my hunting is done. Thanks again. Ned S
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Re: Steel Shot Penetration Table

Postby davkrat » Sun Nov 29, 2009 7:59 pm

I realized when I was halfway through that I had not set the temp to 32. I did not want to start over :oops: Besides here in Cali I usually hunt around 100' elevation and most days I need sunscreen more than goose down :biggrin: So it works for me, thought it might help someone else.

After looking at these numbers it seems to me that 1 1/8 oz. of #3 driven to 1550 fps is just about a perfect duck load. Thankfully we have all the other options to mess with but it really seems hard to argue with the numbers. Lethal to just past 50 yards and 183 pellets in a load.
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Re: Steel Shot Penetration Table

Postby jhook » Mon Nov 30, 2009 4:35 pm

Nice Job! I will print this out and keep it by my bench. I have been messing with RSI 65 and it falls right in the 1550-1600 fps range and it is working good. This kind of helps explaining it's success.
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Re: Steel Shot Penetration Table

Postby davkrat » Sun Sep 26, 2010 8:46 pm

Put together another quick reference chart for penetration included lead as a comparison for you old timers :biggrin:

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Re: Steel Shot Penetration Table

Postby skb20 » Mon Sep 27, 2010 9:22 am

Davkrat --

Where did your penetration numbers come from? I'm not criticizing them, just curious on the source. Thanks.
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Re: Steel Shot Penetration Table

Postby cannon » Mon Sep 27, 2010 11:57 am

Exceedingly nice work!
Smell that? Smells like sumthin died in here.
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Re: Steel Shot Penetration Table

Postby gettingoosy » Mon Sep 27, 2010 12:43 pm

Can you do 2's for the first chart too?

Thanks!
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Re: Steel Shot Penetration Table

Postby retired » Mon Sep 27, 2010 2:30 pm

I remember years ago they had a chart that showed you how much lead you needed at give yardages for ducks a geese. Does anyone have something like that nowdays ? Retired :hi:
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Re: Steel Shot Penetration Table

Postby Norsky » Mon Sep 27, 2010 7:06 pm

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Re: Steel Shot Penetration Table

Postby davkrat » Mon Sep 27, 2010 7:16 pm

skb20 wrote:Davkrat --

Where did your penetration numbers come from? I'm not criticizing them, just curious on the source. Thanks.


I have a friend who has Lowry's program. I've sat down with it a few times and made these charts for quick reference so I don't have to wait to bother him. These are all for 59 degrees and sea level which is the default of Lowry's program and also pretty dead on where I hunt here in California. If you right click and "view image" on this last chart there is an additional table for Hevishot at 1300 fps that does not appear in the forum frames.

As for #2 shot I bet you can fairly easily "average between the next smaller and larger sizes and get a pretty good ballpark idea. After all these are nothing but ballpark findings anyways, gives you somewhere to start from.

For the leads the speed I use for ducks is 50 mph which equates to 73.333 feet per second. Just take the time of flight in seconds and multiply it by 73 and you will get your lead in feet for that shot size/type for muzzle velocity at the given yardage.

Hope it helps you guys out. I like to do "math for fun". My wife thinks I am INSANE!!!!!!! :thumbsup:
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Re: Steel Shot Penetration Table

Postby Dryfly5300 » Sun Sep 09, 2012 9:59 am

Thank you:

Trying to get a first barrel load for 10 gauge pedersoli muzzle loader.
Seems like #1 steel or #2 with 1 1/2 oz with MZ of 1026 will be the ticket.
When I shifted from breech loaders I had to find data on lower MV steel loads.
Second barrel IXT and or hevi 13, but it is darn expensive.

This has been very helpful
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Re: Steel Shot Penetration Table

Postby BBK » Sun Sep 09, 2012 10:59 am

Dryfly5300 wrote:Thank you:

Trying to get a first barrel load for 10 gauge pedersoli muzzle loader.
Seems like #1 steel or #2 with 1 1/2 oz with MZ of 1026 will be the ticket.
When I shifted from breech loaders I had to find data on lower MV steel loads.
Second barrel IXT and or hevi 13, but it is darn expensive.

This has been very helpful


You will be good to about 25 yards with that load.
Why do I shoot 3.5" for geese? Because they don't make a 4" yet!
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Re: Steel Shot Penetration Table

Postby goosemiller » Sun Sep 09, 2012 11:42 pm

You will be good to about 25 yards with that load.[/quote]


Upon what do you base this "expert" opinion?
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Re: Steel Shot Penetration Table

Postby BBK » Mon Sep 10, 2012 10:32 am

goosemiller wrote:You will be good to about 25 yards with that load.


Upon what do you base this "expert" opinion?



Upon where did you lose your sense of humor :yes:

But seriously, I wonder how far it would be lethal with a MV of 1000fps. Since most velocities printed on boxes (in usa) are at 3', MV is usually 25-50fps faster. So in reality most of us are shooting loads at 1500-1600fps MV. So a load at 1000fps MV would be about 950 FPS in our standards.

Anyone remember the old federals that had the speed problem? they were marked 1250 fps but ran at 1100fps (taken at 3'). Hit a bird with that past 25-30 yards and they just jerked a little like you hit them with a baseball.

Anyone with the shotshell ballistics program, can you run a #2 load starting at 1026fps and see how far it would be lethal?
Why do I shoot 3.5" for geese? Because they don't make a 4" yet!
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Re: Steel Shot Penetration Table

Postby derbyacresbob » Mon Sep 10, 2012 7:19 pm

These penetration tables shows me that the target distance is more important than speed. I have known this for quite a while but it really shows up on these tables.

Round pellets do not hold there speed like bullets do no matter what the round pellets are made of. The faster a round pellet starts out the faster it will slow down.

The 1400 fps #3 steel at 40 yards is only going 75 fps slower than the 1700 fps #3 steel steel pellet is going at 40 yards. That is a bunch of recoil for not much speed gain at 40 yards.

The 30 yard penetration for the 1400 fps #3 steel pellet is 1.8" and the 1700 fps #3 steel pellet penetration at 40 yards is 1.7".
These tables really show that 10 yards closer is much more important than HI SPEED and the recoil that comes along with HI SPEED.
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Re: Steel Shot Penetration Table

Postby goosemiller » Mon Sep 10, 2012 8:08 pm

BBK wrote:
goosemiller wrote:You will be good to about 25 yards with that load.


Upon what do you base this "expert" opinion?



Upon where did you lose your sense of humor :yes:

But seriously, I wonder how far it would be lethal with a MV of 1000fps. Since most velocities printed on boxes (in usa) are at 3', MV is usually 25-50fps faster. So in reality most of us are shooting loads at 1500-1600fps MV. So a load at 1000fps MV would be about 950 FPS in our standards.

Anyone remember the old federals that had the speed problem? they were marked 1250 fps but ran at 1100fps (taken at 3'). Hit a bird with that past 25-30 yards and they just jerked a little like you hit them with a baseball.

Anyone with the shotshell ballistics program, can you run a #2 load starting at 1026fps and see how far it would be lethal?


BBK, Are you not the one whom professes to prefer the slower, larger shot and payloads over the light, fast stuff?? If you use the starting point of 20 yards from the above tables for 1 1/2 oz. of #1's at a velocity of 953 as your muzzle fps, that load should be good to 40 yards. Even in an open choke, that load would likely pattern very tightly and a killing pattern should not be a problem.
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Re: Steel Shot Penetration Table

Postby Frank Lopez » Mon Sep 10, 2012 8:26 pm

goosemiller wrote:If you use the starting point of 20 yards from the above tables for 1 1/2 oz. of #1's at a velocity of 953 as your muzzle fps, that load should be good to 40 yards.


For ducks, yes. For geese, it's closer to the 25 yard mark BBK noted.

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Re: Steel Shot Penetration Table

Postby BBK » Mon Sep 10, 2012 9:36 pm

I'll take payload over velocity to a point. I would not shoot anything under 1300fps. The only exception is the old federal classic 1275 or 1250, whatever it was. I still shoot some of that (not the 1100 stuff, this does clock over 1250). And even with that, its just shots out to 25-30 yards.
Why do I shoot 3.5" for geese? Because they don't make a 4" yet!
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Re: Steel Shot Penetration Table

Postby Columbia Basin Local » Tue Sep 11, 2012 4:05 pm

This is really some nice work but, it left me confused as to why the differences in the yardages of 600 fps and 1.28'' of penetration are so different for the larger shot size.The #3's seem to be a balancing point of the chart. I've heard the 600 fps and the 2'' rule both used as a bench mark for minimum energy needed for duck kills. Which is a more accurate figure for the benchmark for shot above #3.
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Re: Steel Shot Penetration Table

Postby J J Mac » Tue Sep 11, 2012 6:43 pm

Columbia Basin Local wrote:This is really some nice work but, it left me confused as to why the differences in the yardages of 600 fps and 1.28'' of penetration are so different for the larger shot size.The #3's seem to be a balancing point of the chart. I've heard the 600 fps and the 2'' rule both used as a bench mark for minimum energy needed for duck kills. Which is a more accurate figure for the benchmark for shot above #3.

First read this. http://www.duckhuntingchat.com/shotgun-shell-ballistics.php
I like 1.5" ballistic gelatin penetration for big ducks. Penetration in ballistic gelatin correlates with momentum density (momentum/cross sectional area) which for constant density can be simplified to D V where D is shot diameter and V is velocity.
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Re: Steel Shot Penetration Table

Postby Dryfly5300 » Wed Sep 12, 2012 9:28 pm

Maybe I should have mentioned I was thinking of 1 1/2 oz 2's and 1's for early season wood ducks.
I have shot alot of wood ducks with 3 inch 3's in breech loaders at higher speeds.
Not sure who would hunt geese with #1 steel even with a breech loader, but I if they really decoyed well and were small geese maybe.
Should mention I have hunted ducks and geese a lot, MN, SD, ND, Manitoba, Saskatchewon, Hudson Bay... dad owned a larger game farm growing up...

I will post how this load and others work, I expect to have good enough early season hunting to be able to experiment some.
Took me a more than a couple days patterning , and shooting more trap than I have shot since my dad sold the game farm, to get this gun where I was comfortable with it. Still don't shoot it nearly as well as my modern guns, but more will be reveled.

Have a good, to very good dog, so won't lose many/any crips.

The load information was helpful, will go test it in real world hunting.

Thanks.
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Re: Steel Shot Penetration Table

Postby BBK » Wed Sep 12, 2012 9:39 pm

<--- that guy shoots #1 at geese. Dropped a few over 12# last year absolutely dead, didnt move a foot. :yes:
Why do I shoot 3.5" for geese? Because they don't make a 4" yet!
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Re: Steel Shot Penetration Table

Postby zpstl321 » Thu Sep 13, 2012 7:08 am

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