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
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrell Life 338 rum vs 300 rum
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="BountyHunter" data-source="post: 336528" data-attributes="member: 12"><p>Here is an article on a spreadsheet to estimate barrel life from the daily blogs on 6mmbr.</p><p> </p><p><strong>GUN TECH--Barrel Life Estimating Software: </strong>Reader MikeCr has created a neat little <a href="http://www.websitetoolbox.com/tool/view/mb/file?username=6mmbr&id=82966" target="_blank"><span style="color: #0000cc">Excel spreadsheet</span></a> that predicts accurate barrel life based on powder charge and powder "heat of explosion". Download the file, input your powder charge and the propellant heat index (from the built-in) table, and the spreadsheet will give you a good idea of how much useful life you can get from your barrel, assuming you don't overheat the barrel and that you clean properly. This is a great way to compare one cartridge vs. another. Obviously, this can't be foolproof as many different factors are involved in barrel wear, but it's still a handy reference. Mike notes: "There has been alot of discussion lately related to cartridge design and resulting barrel life. This is a really important factor to consider amongst a myriad of choices. Barrel life is controversial, and subjective. There is no clear cut standards for comparison. But a few years ago, I put together a spreadsheet based on Bart Bobbits' rule of thumb. It worked pretty good, only occasionally failing some tests when validated against posted barrel lives. According to Ken Howell, I had to account for pressure. And Henry Child's Powder temperature testing provided another piece needed. So, I've tweaked it here and there to pass more tests, for calibers from .223 Rem to 300UM." Note: the calculator works best with pressures above 50K psi, and medium to max loads. For low pressure loads, barrel life may be exaggerated.</p></blockquote><p></p>
[QUOTE="BountyHunter, post: 336528, member: 12"] Here is an article on a spreadsheet to estimate barrel life from the daily blogs on 6mmbr. [B]GUN TECH--Barrel Life Estimating Software: [/B]Reader MikeCr has created a neat little [URL="http://www.websitetoolbox.com/tool/view/mb/file?username=6mmbr&id=82966"][COLOR=#0000cc]Excel spreadsheet[/COLOR][/URL] that predicts accurate barrel life based on powder charge and powder "heat of explosion". Download the file, input your powder charge and the propellant heat index (from the built-in) table, and the spreadsheet will give you a good idea of how much useful life you can get from your barrel, assuming you don't overheat the barrel and that you clean properly. This is a great way to compare one cartridge vs. another. Obviously, this can't be foolproof as many different factors are involved in barrel wear, but it's still a handy reference. Mike notes: "There has been alot of discussion lately related to cartridge design and resulting barrel life. This is a really important factor to consider amongst a myriad of choices. Barrel life is controversial, and subjective. There is no clear cut standards for comparison. But a few years ago, I put together a spreadsheet based on Bart Bobbits' rule of thumb. It worked pretty good, only occasionally failing some tests when validated against posted barrel lives. According to Ken Howell, I had to account for pressure. And Henry Child's Powder temperature testing provided another piece needed. So, I've tweaked it here and there to pass more tests, for calibers from .223 Rem to 300UM." Note: the calculator works best with pressures above 50K psi, and medium to max loads. For low pressure loads, barrel life may be exaggerated. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrell Life 338 rum vs 300 rum
Top