TC Shockwave Bonded Ballistic Coefficient

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sluggo

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I'd like to know if anyone had a ballpark guess as to what ballistic coefficient I might use in the ballistics program for the 50 cal 250gr TC Shockwave Bonded bullet. Found a few boxes of these in the clearance rack at Dick's sporting goods for $7.97/box. Couldn't pass that up with a deer hunt coming in Nebraska. Threw a 2-7x Leupold on the CVA Kodiak and some BH209 and went to the range. Those babies shoot 1 hole groups at 100. I couldn't believe it. Didn't matter what the charge weight was, it was all good. 100gr dead on at 100 yards, 105gr was 1" high, 110gr was 2" high. Windage stayed the same. Very, very cool. Any thoughts on BC for these things?
 
Check out this thread in the smokeless section. Big6x6 did some real world BC calculations the summer of 2006, I doubt if they changed much. I've also quoted the initial post he made with his results. Hope this is legal.
http://www.modernmuzzleloader.com/phpBB ... te&p=32155

big6x6 said:
This morning I wanted to put to rest the actual BCs for some of the new polymer-tipped bullets....

These BCs are calculated using actual velocities taken using identical Pro Chrono chrnongraphs at zero and 100yds. All bullets were fired from the same Savage 10ML-II stainless/laminate. All velocities were measured using the same charge of 40gr SR-4759. The listed BC is an average of 3-shots/readings. I tried to keep all factors as close to being the same as possible....

The BCs are closer than you may think!




2006rangepics%20264.jpg



The "players" from left to right:
T/C 250gr Bonded Shockwave, Barnes 250gr T-MZ, Traditions 275gr T-Shock XLR, T/C 300gr Bonded Shockwave, Knight 290gr USS-PTBT, Barnes 285gr Spit-Fire.

From lowest to highest:
250gr Bonded Shockwave- 0.197
250gr TMZ- 0.207
275gr T-Shock XLR- 0.214
275gr Barnes XBP- 0.224 (added 06/28/06)
300gr Bonded Shockwave- 0.239
290gr TMZ- 0.240
285gr Spitfire- 0.251

I included the 285gr Barnes Spitfire because it has always given me some of the highest BCs around for a .45cal bullet. It still is the BC champ.
 
That's what I needed

Thank you, that is the info I was looking for.
 
Re:

I'm hearing claims the harvester scorpion pt gold 300gr has a ballistic coefficient of .255 can anyone validate that?
younghunter_86 said:
Check out this thread in the smokeless section. Big6x6 did some real world BC calculations the summer of 2006, I doubt if they changed much. I've also quoted the initial post he made with his results. Hope this is legal.
http://www.modernmuzzleloader.com/phpBB ... te&p=32155

big6x6 said:
This morning I wanted to put to rest the actual BCs for some of the new polymer-tipped bullets....

These BCs are calculated using actual velocities taken using identical Pro Chrono chrnongraphs at zero and 100yds. All bullets were fired from the same Savage 10ML-II stainless/laminate. All velocities were measured using the same charge of 40gr SR-4759. The listed BC is an average of 3-shots/readings. I tried to keep all factors as close to being the same as possible....

The BCs are closer than you may think!




2006rangepics%20264.jpg



The "players" from left to right:
T/C 250gr Bonded Shockwave, Barnes 250gr T-MZ, Traditions 275gr T-Shock XLR, T/C 300gr Bonded Shockwave, Knight 290gr USS-PTBT, Barnes 285gr Spit-Fire.

From lowest to highest:
250gr Bonded Shockwave- 0.197
250gr TMZ- 0.207
275gr T-Shock XLR- 0.214
275gr Barnes XBP- 0.224 (added 06/28/06)
300gr Bonded Shockwave- 0.239
290gr TMZ- 0.240
285gr Spitfire- 0.251

I included the 285gr Barnes Spitfire because it has always given me some of the highest BCs around for a .45cal bullet. It still is the BC champ.
 

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