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View Full Version : .50 DTC vs 1/4" steel plate..at 600 yards


EBR Works
10-19-2009, 4:00 PM
Shots taken at 600 yards. This was .50 DTC loaded with Lehigh solid brass 645gr bullets and near maximum powder charge.

Note the brass residue:

http://i59.photobucket.com/albums/g302/impactco/goldhole.jpg

The side view of an impact. Shows just how much energy is being transferred to the plate:

http://i59.photobucket.com/albums/g302/impactco/50bend.jpg

The back side. Hole in lower left is .308 175gr Sierra Match King for comparison:

http://i59.photobucket.com/albums/g302/impactco/50and30back.jpg

PolishMike
10-19-2009, 4:19 PM
A 223 round will go through that plate.

I wanna see what 50dtc will do against a 1/2-5/8" plate.

HKROB
10-19-2009, 4:22 PM
A 223 round will go through that plate.

I wanna see what 50dtc will do against a 1/2-5/8" plate.

It should go through 3/4" steel plate no problem.

CSACANNONEER
10-19-2009, 4:26 PM
It should go through 3/4" steel plate no problem.

Then why won't 50BMG APs and APIs go all the way through 3/8" mild steel at 1000 yards? Really, there have been many pictures posted with the AP cores stuck in the steel. I've even got a sample of one hiding in my storage unit.

PolishMike
10-19-2009, 4:33 PM
Then why won't 50BMG APs and APIs go all the way through 3/8" mild steel at 1000 yards? Really, there have been many pictures posted with the AP cores stuck in the steel. I've even got a sample of one hiding in my storage unit.


You sure?
Ive seen 308 go through 3/8 mild, although that was at 100yds

CSACANNONEER
10-19-2009, 4:38 PM
You sure?
Ive seen 308 go through 3/8 mild, although that was at 100yds

Well, Since I've done it along with others, yea, I'm pretty sure. If you're ever up my way, I'll show you the sample plate. If we ever get together at a 1000 yard range, you can try it for yourself. I'll even supply the rifle and ammo.

EBR Works
10-19-2009, 5:13 PM
A 223 round will go through that plate.


At 600 yards? Show me pics.

mrkubota
10-19-2009, 5:40 PM
Then why won't 50BMG APs and APIs go all the way through 3/8" mild steel at 1000 yards? Really, there have been many pictures posted with the AP cores stuck in the steel. I've even got a sample of one hiding in my storage unit.

It seems to depend on the particular components/load used.
We had a 1/2" plate at a 1000yds that *most* AP would go through with a few getting stuck on occasion. Usually, you could see more deformation in those cores, implying that they weren't hardened properly. Others were likely just launched at lower velocities.

http://www.daplane.com/50bmg/ap_target.jpg

bomb_on_bus
10-19-2009, 6:24 PM
jeez thats a pretty strange pick to see half inch diameter bullets stuck in metal like that!

must be a good conversation piece

a1fabweld
10-19-2009, 6:27 PM
A 223 round will go through that plate.

I wanna see what 50dtc will do against a 1/2-5/8" plate.

I tested SS109 on 3/8 mild steel plate @ approx 30-50 yards, through a 16" barrel, & no penetration. Left a big bubble on the backside, even had a crack you could see light through, but didn't go through. German surplus .308 went through it with a 21" barrel. Same round through a 16" barrel didn't penetrate.

HKROB
10-19-2009, 8:22 PM
Then why won't 50BMG APs and APIs go all the way through 3/8" mild steel at 1000 yards? Really, there have been many pictures posted with the AP cores stuck in the steel. I've even got a sample of one hiding in my storage unit.
I did not notice the op said 600 yds :confused: I was thinking 100 yds.

CSACANNONEER
10-19-2009, 10:21 PM
I did not notice the op said 600 yds :confused: I was thinking 100 yds.

Yea, I've miscounted "0"s before too. No worries. I'm not expert but, I've noticed a hell of a lot of difference between 100 yards and 600 yards. Also, 1000 yards is a completely different ball game. But, I'm still amazed at the lack of penetration at 1000 yards with APs and APIs.

supersonic
10-19-2009, 11:32 PM
Wow. I hope I get better results with the 647gr. black tips I am going to be loading as soon as I fire-form a batch of BMG/DTC* brass. My short-term goal is to vaporize some BOULDERS!

* BMG/DTC is my new term for all the brand new 50BMG cases I have trimmed & run through a .510DTC sizer. They are not "true" 50 DTC until they are fire-formed!:D

r08ert209cali
10-20-2009, 5:58 AM
1" thick spectra 400 yds .510dtc brass tip. Did not penetrate.
http://img214.imageshack.us/img214/9395/shoot022rk7.jpg
http://img214.imageshack.us/img214/5937/shoot019rq5.jpg
http://img214.imageshack.us/img214/8700/shoot021xn5.jpg
http://img214.imageshack.us/img214/7311/shoot020zf8.jpg

r08ert209cali
10-20-2009, 6:02 AM
same round with 3/16 mild steel bolted to 1" of kevlar got through both at 100 yds.
http://img214.imageshack.us/img214/301/shoot014zj6.jpg
http://img214.imageshack.us/img214/9910/shoot013jg9.jpg

xxdabroxx
10-20-2009, 7:12 AM
I want to join the big caliber club when i grow up.

ar15barrels
10-20-2009, 9:09 PM
It seems to depend on the particular components/load used.
We had a 1/2" plate at a 1000yds that *most* AP would go through with a few getting stuck on occasion. Usually, you could see more deformation in those cores, implying that they weren't hardened properly. Others were likely just launched at lower velocities.

http://www.daplane.com/50bmg/ap_target.jpg

I was shooting at that plate last weekend.
Most of those penetrators are still in it.
We missed you Ben.

The Director
10-20-2009, 9:48 PM
Damn, I guess when you have a 'Fitty Cal shooting at paper is passe....suddenly you need to drag out the half inch plates!

ar15barrels
10-20-2009, 9:55 PM
Damn, I guess when you have a 'Fitty Cal shooting at paper is passe....suddenly you need to drag out the half inch plates!

The problem with 50's is that even 1000yds seems too close to really call it "long range".
Of course NO optic can reliably spot holes in paper at 1000yds or more and the locations for 1000+ yd shooting with targets in pits are extremely limited.
So we go to various sizes of steel plates for long range shooting.
Then you can either see the dirt splash 2 seconds after firing or hear the hit 5 seconds after firing.

CSACANNONEER
10-21-2009, 3:15 PM
The problem with 50's is that even 1000yds seems too close to really call it "long range".
Of course NO optic can reliably spot holes in paper at 1000yds or more and the locations for 1000+ yd shooting with targets in pits are extremely limited.
So we go to various sizes of steel plates for long range shooting.
Then you can either see the dirt splash 2 seconds after firing or hear the hit 5 seconds after firing.

Or, go out of state and get some APIs. Then you can see your hits period.:D

Of course punching paper at 1000 is challenging. As far as precission goes, 50s don't do as well as 6mms do. Just look at different BR records and you will see. Hitting steel at 1000 is fun but, shooting a <.5 moa group at 1000 yards is very rewarding too.

bcrich
10-21-2009, 3:37 PM
Those sub .50 moa patches you've earned must come out of your wallet bro and be proud to wear them mr cannoneer!

CSACANNONEER
10-21-2009, 4:16 PM
Those sub .50 moa patches you've earned must come out of your wallet bro and be proud to wear them mr cannoneer!

Yea, I earned them almost a year and a half ago now. Someday, I'll quit procrastinating and find a needle and thread. Hell, I guess I better do it before SHOT '10.

HKROB
10-21-2009, 5:00 PM
So we go to various sizes of steel plates for long range shooting..

What size steel plates are you guys using for your long range stuff 600+ yards.

Saym14
10-21-2009, 8:00 PM
cool!

I wonder how much energy and bullet weight is left afterwards. enough do do further damage. what happens if there is a 2nd plate behind the first?

TKM
10-21-2009, 8:10 PM
http://www.bobrohrer.com

In his tales of the M16 (under Jouster Tales) discusses .223 rounds getting stuck in accumulated target pasters at moderate distances.

jamesob
10-21-2009, 9:30 PM
A 223 round will go through that plate.

I wanna see what 50dtc will do against a 1/2-5/8" plate.

not at 600 yds. it will make a nice little ding and scratch

bombadillo
10-21-2009, 10:20 PM
Wow to Randall and all who shot at that plate. To the spectra, that stuff is amazing. I trained to do safety maneuvers for idiots that got themselves hung up in the ropes courses through Project Adventure and spectra in 1/4" or less will comfortably hold a VW bug up in the air without even thinking twice about it. That material is just wicked.

xibunkrlilkidsx
10-21-2009, 10:52 PM
It seems to depend on the particular components/load used.
We had a 1/2" plate at a 1000yds that *most* AP would go through with a few getting stuck on occasion. Usually, you could see more deformation in those cores, implying that they weren't hardened properly. Others were likely just launched at lower velocities.

http://www.daplane.com/50bmg/ap_target.jpg

that is a ****ing trip lol