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
Chosing the right .243/6mm
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="Trickymissfit" data-source="post: 445572" data-attributes="member: 25383"><p>a 6mm Vias is a creation by the late George Vias (the guy that invented the very best muzzel brake ever). He did it in three calibers; 6.5, 6mm, and .223. It's a bit overbore for the two smaller diameters. The case is a 6.5x55 improved. It's kinda hard on barrels with the two smaller calibers (about the same as a .243Ackley or a 22 Jarrett). The guys at Precision Shooting did a lot of fooling around with it a few years back with the idea of it being a good 600+ yard round, and did have some good results with it. I think M.L. McPherson is still shooting one from time to time, but he has so many irons in the fire that he can't spend a lot of time with it like he should. The idea with the round was for it to have 6mm Ackley velocities while being a little less overbore. Cases can be formed from 6.5x55 brass or better yet 6mm remington brass (.257 or 7x57 works well too). It seems to want a 26" barrel with a heavy contour (must have one hell of a shock wave). I started to put one together a few years back, but kept getting stalled with the reamer folks (I would ream my own dies out of A2 or 4150 with a nitride). The 6mm Ackley is easier todo, and is probably easier on barrels. I actually went so far as to send George a letter asking him for a drawing to have a reamer ground, and never got a reply (he passed away right about that time).</p><p> </p><p> I think you'd really like the 6/250AI round. It'll really reach out there, and seems tobe very accurate. But the HLS would be a step better all the way around. The 6mm Ackley reamer is easy to come by, and all Ackley rounds (except two or three) have the same shoulder angle and taper per inch, so running a standard Ackley reamer in short means very little in the diameter (.0005" maybe). I use a cut off .243 Ackley sizing die (Redding) for my 6/250AI. The seater is similar, but slightly more work (I now use a Wilson 22-250 that's had a reamer run thru it). Generic 22-250 cases are easy to come by, and all you need is a neck expander (I use a Sinclair). I seem to loose about one case in 25 during fire forming, and that's usually operator error.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 445572, member: 25383"] a 6mm Vias is a creation by the late George Vias (the guy that invented the very best muzzel brake ever). He did it in three calibers; 6.5, 6mm, and .223. It's a bit overbore for the two smaller diameters. The case is a 6.5x55 improved. It's kinda hard on barrels with the two smaller calibers (about the same as a .243Ackley or a 22 Jarrett). The guys at Precision Shooting did a lot of fooling around with it a few years back with the idea of it being a good 600+ yard round, and did have some good results with it. I think M.L. McPherson is still shooting one from time to time, but he has so many irons in the fire that he can't spend a lot of time with it like he should. The idea with the round was for it to have 6mm Ackley velocities while being a little less overbore. Cases can be formed from 6.5x55 brass or better yet 6mm remington brass (.257 or 7x57 works well too). It seems to want a 26" barrel with a heavy contour (must have one hell of a shock wave). I started to put one together a few years back, but kept getting stalled with the reamer folks (I would ream my own dies out of A2 or 4150 with a nitride). The 6mm Ackley is easier todo, and is probably easier on barrels. I actually went so far as to send George a letter asking him for a drawing to have a reamer ground, and never got a reply (he passed away right about that time). I think you'd really like the 6/250AI round. It'll really reach out there, and seems tobe very accurate. But the HLS would be a step better all the way around. The 6mm Ackley reamer is easy to come by, and all Ackley rounds (except two or three) have the same shoulder angle and taper per inch, so running a standard Ackley reamer in short means very little in the diameter (.0005" maybe). I use a cut off .243 Ackley sizing die (Redding) for my 6/250AI. The seater is similar, but slightly more work (I now use a Wilson 22-250 that's had a reamer run thru it). Generic 22-250 cases are easy to come by, and all you need is a neck expander (I use a Sinclair). I seem to loose about one case in 25 during fire forming, and that's usually operator error. gary [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Chosing the right .243/6mm
Top