"Ballistics by the inch" - free new resource.
- Thread starter Shadan7
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Jason,
The only relivance of this data is that it shows the velocity difference of a short barrel locking breech compared to a long barrel locking breech.....nothing more. The assumption that similar velocites can be achieved from a semiauto carbine are incorrect and gives the reader a false assumption that a pistol carbine would give them the velocties of a locking breech.
Shadan7,
There is no reason why your group cannot purchase or rent a Beretta carbine or Ruger carbine and run these pistol carbines along side your data. I think it is strange to say the least that you would bring in a few pistols and compare their velocites(which are not as effected by gas leak as a carbine) to your locking breech test guns and not have a single pistol carbine to show that your locking breech guns are an accurate test model. Show me "honest" data from some actual pistol carbines and if it has similar velocties to your locking breech test guns, I'll shut up. So far, I can pull up a number of pistol carbine velocity data that shows otherwise.
Lastly, it has been documented by CCI Speer that when the Gold Dot is pushed to roughly 300fps+ faster than its intended commercial velocity, it will over expand and the petals will pull back too far resulting in a projectile that will create a smaller permanent wound cavity than a bullet fired at factory intended velocities. Just some food for thought when pushing ammunition beyond its intended purpose.
The only relivance of this data is that it shows the velocity difference of a short barrel locking breech compared to a long barrel locking breech.....nothing more. The assumption that similar velocites can be achieved from a semiauto carbine are incorrect and gives the reader a false assumption that a pistol carbine would give them the velocties of a locking breech.
Shadan7,
There is no reason why your group cannot purchase or rent a Beretta carbine or Ruger carbine and run these pistol carbines along side your data. I think it is strange to say the least that you would bring in a few pistols and compare their velocites(which are not as effected by gas leak as a carbine) to your locking breech test guns and not have a single pistol carbine to show that your locking breech guns are an accurate test model. Show me "honest" data from some actual pistol carbines and if it has similar velocties to your locking breech test guns, I'll shut up. So far, I can pull up a number of pistol carbine velocity data that shows otherwise.
Lastly, it has been documented by CCI Speer that when the Gold Dot is pushed to roughly 300fps+ faster than its intended commercial velocity, it will over expand and the petals will pull back too far resulting in a projectile that will create a smaller permanent wound cavity than a bullet fired at factory intended velocities. Just some food for thought when pushing ammunition beyond its intended purpose.
Feel free.
Marcus, nowhere on our site or elsewhere where I have commented about the tests will you see *anything* which claims that we have conducted the definitive tests for all time, nor that anyone should refrain from doing similar rigorous research. In fact, we *welcome* more testing - we're willing to put it on our site and give others all the credit for their work - if it is documented and transparent, as our data is.
You're welcome to conduct your own tests - take the time, spend the money, do the work, then compile and put it online for any and all to see and use freely. Please. Do it - we'll all benefit. Until then, you'll forgive me if I don't have a lot of sympathy for your complaints that we didn't conduct the tests the way you would like to see them.
7
Marcus, nowhere on our site or elsewhere where I have commented about the tests will you see *anything* which claims that we have conducted the definitive tests for all time, nor that anyone should refrain from doing similar rigorous research. In fact, we *welcome* more testing - we're willing to put it on our site and give others all the credit for their work - if it is documented and transparent, as our data is.
You're welcome to conduct your own tests - take the time, spend the money, do the work, then compile and put it online for any and all to see and use freely. Please. Do it - we'll all benefit. Until then, you'll forgive me if I don't have a lot of sympathy for your complaints that we didn't conduct the tests the way you would like to see them.
7
An update.
From a post on our blog:
Just wanted to pass along the good news, and thank all the folks here who have helped to spread the word!
Cheers!
Jim D.
From a post on our blog:
So, we're one month in since the launch. And in that time we've had over a third of a million hits. Referrals (meaning that people clicked a link that took them to Bbti) from over 500 sites. Visitors from all around the globe (though the vast majority are from the US), and discussions about the project in at least half a dozen languages that I've come across so far.
Increasingly, I see our site being listed as a reference in discussions pertaining to ballistic performance of a given caliber, as I noted the other day in comments to this post. This is what I find most rewarding - because we did the project not in order to just shoot up a bunch of ammo, but to create a database that would be useful to people. Sure, the initial surge of interest was because of the novelty of the project - the "they did WHAT?" aspect of it. But the real value over the long term is having the information freely available for anyone who needs it.
Increasingly, I see our site being listed as a reference in discussions pertaining to ballistic performance of a given caliber, as I noted the other day in comments to this post. This is what I find most rewarding - because we did the project not in order to just shoot up a bunch of ammo, but to create a database that would be useful to people. Sure, the initial surge of interest was because of the novelty of the project - the "they did WHAT?" aspect of it. But the real value over the long term is having the information freely available for anyone who needs it.
Just wanted to pass along the good news, and thank all the folks here who have helped to spread the word!
Cheers!
Jim D.
Kudos guys, I book marked it.
You know one caliber I'd like to see... if you are not limited to pistol rounds
.223/5.56 comparing 20, 16, 14 and 11.5 inch barrels (like commonly found on AR's)
You know one caliber I'd like to see... if you are not limited to pistol rounds
.223/5.56 comparing 20, 16, 14 and 11.5 inch barrels (like commonly found on AR's)
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