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PRB ballistic coefficient?

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PRB ballistic coefficient?

Old 12-14-2007, 07:01 AM
  #1  
Fork Horn
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Default PRB ballistic coefficient?

I know I was told before but can't find it. WHat is it for a .490 .50 PRB?

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Old 12-14-2007, 07:26 AM
  #2  
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Default RE: PRB ballistic coefficient?

.068
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Old 12-14-2007, 09:02 AM
  #3  
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Default RE: PRB ballistic coefficient?

rem 700,Are you sure ? I had .056 marked down in my notes for a 50 cal and .068 for a 54 cal. I dont remember where I got them so it would be hard for me to go back and check. Lee
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Old 12-14-2007, 09:18 AM
  #4  
Dominant Buck
 
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Default RE: PRB ballistic coefficient?

B.C. OF ROUNDBALL[/b]


Here are some BC's that you can use in G1 table.

Caliber BC
.570 .066
.535 .062
.530 .061
.495 .057
.490 .056
.457 .053
.454 .052
.451 .052
.445 .051
.440 .051
.433 .050
.375 .043
.350 .040

Here is a chart for a .530 ball at 1700 fps with a front sight height of .75 inch above bore centerline and with a 50 yard zero.

Range Elevation Velocity
0 yds -0.75 in 1700 fps
25 yds 0.15 in 1448 fps
50 yds 0.00 in 1242 fps
75 yds -1.56 in 1093 fps
100 yds -4.91 in 997 fps
125 yds -10.37 in 928 fps
150 yds -18.19 in 872 fps
175 yds -28.70 in 824 fps
200 yds -42.10 in 781 fps
225 yds -58.88 in 742 fps
250 yds -79.26 in 705 fps
275 yds -103.57 in 671 fps
300 yds -132.53 in 639 fps

perhaps this will help...
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Old 12-14-2007, 09:43 AM
  #5  
Fork Horn
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Default RE: PRB ballistic coefficient?

Thanks. What is the BC of a can of PBR?
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Old 12-14-2007, 09:48 AM
  #6  
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Default RE: PRB ballistic coefficient?

ORIGINAL: cherokee75

Thanks. What is the BC of a can of PBR?
Are you refering to a can of Pabst Blue Ribbon Beer? Remember I'm from Wisconsin. We know beer in this State.
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Old 12-14-2007, 09:52 AM
  #7  
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Default RE: PRB ballistic coefficient?

ORIGINAL: cayugad

ORIGINAL: cherokee75

Thanks. What is the BC of a can of PBR?
Are you refering to a can of Pabst Blue Ribbon Beer? Remember I'm from Wisconsin. We know beer in this State.
LMAO!!![8D] Don't forget the cheese!
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Old 12-14-2007, 10:50 AM
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Default RE: PRB ballistic coefficient?

"can of PBR"

They actually make pretty good projectiles! There was a video floating around the net of a guy that had built either a Keystone or Stroh's gun (like a potato gun). Pretty cool stuff, I'll see if I can dig it up for laughs
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Old 12-14-2007, 02:23 PM
  #9  
Fork Horn
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Default RE: PRB ballistic coefficient?

How about the BC of a 350 grain Maxi-hunter?
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Old 12-14-2007, 02:47 PM
  #10  
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Default RE: PRB ballistic coefficient?

ORIGINAL: cherokee75

How about the BC of a 350 grain Maxi-hunter?
I really do not know the BC of a Maxi-Hunter. All I can tell you about them is even with a moderate powder charge, they hit and do MASSIVE damage. I have a friend that hunts with them out of an old T/C Hawkins rifle. He shoots 70 grains of powder. When he brings in a deer, the wound is always hard to believe it is made by just that small amount of lead. I asked him once why he uses them because they really do tear some massive wound channels. He said they are very accurate and he has never had to track a deer with them.

If they are accurate for you, and you want to plant a deer, then by all means use them. If you want to drop them on the spot, then aim for the shoulder bone. It will shatter that thing...

I do not use them personally. Years ago, I used to shoot a Buffalo Bullet 426 grain conical with a small hollow point tip. I shot a large buck one year with one, and had to almost throw away both front shoulders. Granted I liked the knock down, but I am meat greedy.So I gave up on the hollow point conicals for deer.
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