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+--- Thread: How is this possible? (/showthread.php?tid=23050)
How is this possible? - StevieP - 03-10-2021
[ATTACH=CONFIG]17679[/ATTACH]
The search phrase was "Best 18""
How is this possible? - LR1955 - 03-10-2021
StevieP Wrote:[ATTACH=CONFIG]17679[/ATTACH]
The search phrase was "Best 18""
Huh?
What is 'Best 18'?
LR55
How is this possible? - StevieP - 03-10-2021
You'd think someone, at some point in time, would have been looking for the Best 18" barrel in a subforum called "6.5 Grendel Build-It-Yourself & Custom Builds".
At least, I figured someone else would have.
How is this possible? - PVBoom - 03-10-2021
No, they ask about best barrels. Then here, as anywhere else, it becomes "best barrel for what?" time.
How is this possible? - StevieP - 03-10-2021
Precision Hunting rifle. Not a bull barrel. Not a pencil barrel. Better than average "stock" barrel at a reasonable price point.
Midlength (?) gas system.
Stainless steel or good quality 4150 w/ nitride or other quality finish.
1:8 twist or faster (1.7? 1.75?)
< MOA more often than > MOA, with good factory ammo e.g. Hornady SST or ELDM. repeatable (not a fluke) .5 MOA would be really nice but budget may not allow quite that level of custom match-grade quality.
How is this possible? - mdram - 03-10-2021
grab a criterion, they have them on thier site, and on brownells @ 300 or so
How is this possible? - StevieP - 03-10-2021
[ATTACH=CONFIG]17680[/ATTACH]
Suggested additional brand Row names down the side or Column criteria across the top?
If you can't see the attachment they read:
Brand
Faxon
Monster
Wilson Combat
Wilson Arms
Lilja
Kreiger
Rainier
Ballistic Advantage (no more?)
Criterion
Alexander Arms
AR-Stoner
Odin Works
LaRue
JP
Palmetto State (PSA)
Brownell's (anyone confirm their house brand is actually made by?)
White Oak Amory
and
/ Brand / Vendor / Material / Rifling (5R, etc.) / Profile / Weight / Gas system / Price / Comments
How is this possible? - VASCAR2 - 03-11-2021
Here is a link to the google custom search feature on this forum. Ive had very good results using this search method on this forum.
https://cse.google.com/cse?cx=016368947416500061353:paqd_0xcu1o&hl=en
How is this possible? - StevieP - 03-11-2021
Thanks VASCAR2
How is this possible? - A5BLASTER - 03-11-2021
Call Mark at PF and tell him what your looking for and he will build you a heck of barrel.
How is this possible? - StevieP - 03-11-2021
Shilen's 18" mid tactical barrel is six groove, one in nine twist.
What bullet weights is 1:9 best suited for?
How is this possible? - biodsl - 03-11-2021
StevieP Wrote:Shilen's 18" mid tactical barrel is six groove, one in nine twist.
What bullet weights is 1:9 best suited for?
Stevie...this thread includes comment from Mr. Alexander himself regarding twist rates. Short answer; he liked something tighter than 1:9 for 18" barrels. https://www.65grendel.com/forum/showthread.php?1854-Best-twist-rate
How is this possible? - VASCAR2 - 03-11-2021
StevieP Wrote:Shilen's 18" mid tactical barrel is six groove, one in nine twist.
What bullet weights is 1:9 best suited for?
The 1:9 twist is a common twist for .264 cartridges like the 264 Winchester Magnum prior to current trend of using long sleek bullets with high BC for long range shooting. I have two 1:9 twist 6.5 Grendel barrels and they are both accurate with bullets from 85 grains to 125 grains. My Son in Law has a 22 Lothar Walther 6.5 CSS with 1:9 twist which is accurate with 129 grain SST ammo. Supposedly the longer barrels do a little better with the slower twist.
Berger has a stability twist calculator which is useful for determining if your twist is suitable for a particular bullet. If your goal is to shoot long range especially with bullets over 123 grains the 1:9 twist barrel is not optimal. Ive shot my 20 1:9 twist Shilen barrel to 1000 yards with 123 grain bullets and am satisfied with its performance.
https://bergerbullets.com/twist-rate-calculator/
How is this possible? - StevieP - 03-11-2021
Looks like I do indeed want the 1:8 twist after all. Thanks.
How is this possible? - A5BLASTER - 03-11-2021
StevieP Wrote:Looks like I do indeed want the 1:8 twist after all. Thanks.
No 8 twist is standard what you want is a 7.5 twist with 5r rifling