|
|
06-29-2016, 12:17 PM
|
|
|
Join Date: May 2014
Location: Calgary
Posts: 1,747
|
|
Quote:
Originally Posted by Xiph0id
I've read about the long freeborn. Why?
|
Someone like 260 might be better to answer that, but my understanding is the longer freebore is designed to eliminate or smooth out the pressure spike of a big magnum.
Colin
__________________
Check out my new book on Kindle - After The Flesh.
|
06-29-2016, 12:26 PM
|
|
|
Join Date: Jun 2010
Location: Leduc
Posts: 1,638
|
|
Quote:
Originally Posted by purgatory.sv
Excellent. Will make the assumption this is purchased ammo, buy as many boxes as too can afford, you will be set for some time .
Keep shooting the 22 , and if you have another center fire rifle that isn’t as expensive to shot use it also. The more repetition you take and observation on what you are doing will help.
|
I don't have another center fire but I thinking about another.
The kids 22 is too small for them now and I'm thinking 243 or 7mm-08
|
06-29-2016, 12:42 PM
|
Banned
|
|
Join Date: Mar 2009
Posts: 5,296
|
|
Both are reasonable compared to the 257,use the 257 as the work tool and look at a 223 as well as what you have mentioned.
|
06-29-2016, 12:50 PM
|
|
|
|
Join Date: Dec 2013
Location: In your personal space.
Posts: 4,787
|
|
Quote:
Originally Posted by Xiph0id
I don't have another center fire but I thinking about another.
The kids 22 is too small for them now and I'm thinking 243 or 7mm-08
|
223. The bulk ammo is very reasonable. It's also a good yote chaser.
|
06-29-2016, 01:39 PM
|
|
|
Join Date: Aug 2008
Location: Between the mountains and the prairies.
Posts: 1,949
|
|
A large cased magnum such as the 257 Wby will generate as much heat in 3 shots as more conventional rounds such as the 270 or 30-06 will do in 5 rounds. And I'm not saying that high temps will ruin your barrel after one heating but constantly over heating will most definitely reduce the barrels lifespan. I fire round after round downrange at gophers with my heavy barrel 223 but I never shoot fast enough to get the barrel hotter than I can comfortably hold my hand on. This is also my rule of thumb at the range, if I can hold the barrel comfortable after 5 rounds then 5 round groups are fine but usually I can't with hotter rounds such as the 257 Wby.
Excessive heat actually causes the surface of the barrel steel to craze and almost melt developing tiny cracks in the surface, this weakened metal is then hit by high pressure and a projectile which then drags tiny particles of the barrel steel down the barrel. This of course accelerates the wear but you'll likely have erosion in the throat before you actually wear the barrel out. This isn't my theory or my grandpa's theory or an old wives tale even though I've witnessed the phenomenon personally, it's been researched and well documented so I won't continue to argue about it. Like I said, do what you want with your own rifles.
__________________
Life is too short too shoot ugly guns.
|
06-29-2016, 02:27 PM
|
|
|
|
Join Date: Dec 2013
Location: In your personal space.
Posts: 4,787
|
|
Large bore magnums do create more heat than conventional based cartridges. I can get on board with that, just not enough to make a difference between 3 to 5 shots. The phenomenon of crazing though is not true, what you are referring to is fire cracking in the throat. I wrote a paper years ago illustrating the long term effects of crazing on hydraulic stanchion tubes that were chrome plated over 17-4 ph stainless. The heat cycling would cause crazing (looks like a dry lake bed kinda cracks) but the base material would not have the same damage. Its caused by 2 materials with differing rates of thermal expansion. If you could cause such damage it would be exhibited at the steel mill in the base material.
To the OP, regardless of where this thread has gone, good shooting! I have been around the range long enough to see many shooters unable to produce those results with factory rifles! If that kind of performance becomes addictive, you will have found a new money pit.
|
06-29-2016, 02:30 PM
|
|
|
Join Date: Sep 2015
Posts: 799
|
|
Quote:
Originally Posted by Bergerboy
I wrote a paper years ago...
|
OK, now ya got me curious. What's your profession, BB?
OP - that's some good shooting!
|
06-29-2016, 02:31 PM
|
|
|
Join Date: Jun 2010
Location: Leduc
Posts: 1,638
|
|
One last thing to note.
In my research with this caliber I choose to go with a SS barrel as opposed to steel due to some of the things I've read.
And thanks to all for the congrats.
|
06-29-2016, 04:53 PM
|
|
|
|
Join Date: Dec 2013
Location: In your personal space.
Posts: 4,787
|
|
Quote:
Originally Posted by Xiph0id
One last thing to note.
In my research with this caliber I choose to go with a SS barrel as opposed to steel due to some of the things I've read.
And thanks to all for the congrats.
|
Here is a link to a previous discussion that may pique your interest.
http://www.outdoorsmenforum.ca/showthread.php?t=226643
|
06-29-2016, 07:09 PM
|
|
|
|
Join Date: Dec 2010
Location: My House
Posts: 13,443
|
|
Quote:
Originally Posted by RolHammer
OK, now ya got me curious. What's your profession, BB?
|
I think I can recall him saying it was some kind of "jazzler" or something like that.
|
06-29-2016, 07:45 PM
|
Banned
|
|
Join Date: May 2016
Location: Central Alberta
Posts: 288
|
|
Quote:
Originally Posted by duster243
Putting anybody behind an accurate rifle and have it shoot sub MOA groups is a stretch in my opinion. Most individuals have some sort of bad habit that contributes to opening up the group.
|
Depends on the rifle and scope and shooter IMHO.
I once shot a heavy-barreled Remington bolt action with a target scope set at 10 power. It was easy to drill pop cans dead center at 100 yards over and over from a sitting position.
I have no doubt that with this rifle, bench-rested, I could easily have shot sub MOA groups.
Heavy barrel, light trigger, perfect bedding, young shooter, young eyes, and someone who learned to shoot .22 target pistol well before he ever fired a center-fire rifle.
|
06-29-2016, 08:19 PM
|
|
|
Join Date: Sep 2015
Posts: 799
|
|
Quote:
Originally Posted by sns2
I think I can recall him saying it was some kind of "jazzler" or something like that.
|
Hmm...I thought I heard 'mooseumper'. Not clear on what that means though.
|
06-29-2016, 11:03 PM
|
|
|
Join Date: Jun 2010
Location: Leduc
Posts: 1,638
|
|
Quote:
Originally Posted by Bergerboy
|
I am very familiar with heat disapation and thermal conductivity of both stainless steel and chromoly.
I was more refering to the throat erosion properties of those alloys.
This is what steared me to a SS barrel as opposed to moly.
Also, the SS and two tone colors of the weatherby look sexy!
|
06-29-2016, 11:31 PM
|
|
|
|
Join Date: Dec 2013
Location: In your personal space.
Posts: 4,787
|
|
Quote:
Originally Posted by Xiph0id
I am very familiar with heat disapation and thermal conductivity of both stainless steel and chromoly.
I was more refering to the throat erosion properties of those alloys.
This is what steared me to a SS barrel as opposed to moly.
Also, the SS and two tone colors of the weatherby look sexy!
|
Cool, I agree with you, SS barrels do look baller.
|
Thread Tools |
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 08:38 AM.
|