Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Hunting
Long Range Hunting & Shooting
Has anyone tried or heard of anyone playing with this cartridge?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="gregsjt" data-source="post: 1454233" data-attributes="member: 88091"><p>Dude, this is going to be hard to explain in writing, I wish I had a white board!</p><p></p><p>Ok, imagine a five pointed star inside of a tube, each point of the star just touches the inside of the tube and the tube is 12" long. If you're looking staight from the end of the tube you see a star with a circle around it. Also imagine that the point that is pointing up is number 1. </p><p></p><p>Now I'm going to pull that five pointed star through the tube at a very consistent rate and I'm going to pull it through the tube the same rate every single time. So, the first time I pull the star through the tube I don't do anything to the tube while I'm pulling the star. When I get done all I have are 5 straight lines scratched on the inside of the tube, no twist. </p><p></p><p>Now, the second time I pull the star through the tube I'm going to twist the tube one full rotation around the star, if I time the twisting of the tube so that one full twist of the tube will end at precisely the same time that the star reaches the end of the tube I just created a 1:12" twist or in other words the number one point of the star will make one full rotation inside the tube in 12". </p><p></p><p>Now let's pretend that on the third time I'm going to vary the speed that I twist the tube while the star is being pulled through. So when I start I'm going to twist the tube at the same rate as the second time so by the time I hit 6" I've twisted the tube 1/2 of a roation. Then in the last six inches I twist the tube 1 full roation more. So instead of 1 full twist in 12" I made 1.5 rotations of the tube in the time it took for the star to be pulled through the tube. </p><p></p><p>I'v effectively just created a gain twist inside the tube, the first six inches is on pace for a 1 twist in 12" and the second half of the tube is a 1 twist in 6". </p><p></p><p>During that whole process the geometry of the star never changed! Meaning the lines inside the tube are spaced the same distance apart no matter how fast or slow I twisted the tube around the star.</p><p></p><p>I know this isn't exactly how they make the barrels but it's the easiest way I can think of to explain why the gain twist doesn't change the geometry of the lands and grooves. Hopefully it makes sense.</p></blockquote><p></p>
[QUOTE="gregsjt, post: 1454233, member: 88091"] Dude, this is going to be hard to explain in writing, I wish I had a white board! Ok, imagine a five pointed star inside of a tube, each point of the star just touches the inside of the tube and the tube is 12" long. If you're looking staight from the end of the tube you see a star with a circle around it. Also imagine that the point that is pointing up is number 1. Now I'm going to pull that five pointed star through the tube at a very consistent rate and I'm going to pull it through the tube the same rate every single time. So, the first time I pull the star through the tube I don't do anything to the tube while I'm pulling the star. When I get done all I have are 5 straight lines scratched on the inside of the tube, no twist. Now, the second time I pull the star through the tube I'm going to twist the tube one full rotation around the star, if I time the twisting of the tube so that one full twist of the tube will end at precisely the same time that the star reaches the end of the tube I just created a 1:12" twist or in other words the number one point of the star will make one full rotation inside the tube in 12". Now let's pretend that on the third time I'm going to vary the speed that I twist the tube while the star is being pulled through. So when I start I'm going to twist the tube at the same rate as the second time so by the time I hit 6" I've twisted the tube 1/2 of a roation. Then in the last six inches I twist the tube 1 full roation more. So instead of 1 full twist in 12" I made 1.5 rotations of the tube in the time it took for the star to be pulled through the tube. I'v effectively just created a gain twist inside the tube, the first six inches is on pace for a 1 twist in 12" and the second half of the tube is a 1 twist in 6". During that whole process the geometry of the star never changed! Meaning the lines inside the tube are spaced the same distance apart no matter how fast or slow I twisted the tube around the star. I know this isn't exactly how they make the barrels but it's the easiest way I can think of to explain why the gain twist doesn't change the geometry of the lands and grooves. Hopefully it makes sense. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
Has anyone tried or heard of anyone playing with this cartridge?
Top