Reforming .277 Fury brass to Creedmoor

[Hondo1]

Has anyone has luck forming the hybrid .277 Fury brass to 6.5 or 6mm Creedmoor? Was the juice worth the squeeze? I’m thinking of putting together a 18 to 20” 6mm Creedmoor for coyotes, curious if reformed Fury brass could gain me back some speed from the shorter barrel.

 

[stello1001]

@45-90
Isn't this something you've done?

 

[DIBBS]

Post 21 I think

Rechamber 6.5 CM barrel to 6.5 PRC?

I have a Seekins Havak Hit with the quick change barrels and bolt heads. I wanted a 6.5 PRC Seekins barrel but they are OOS, but I do have a 6.5 CM barrel for it. Can a 6.5 CM barrel be rechambered to 6.5 PRC without being set back? If all I had to do is have my gunsmith run a PRC reamer in...

www.snipershide.com

 

[FuhQ]

I've reformed some of the Hybrid 6.8x51 military cases into .308 Win. So far, so good...

 

[45-90]

Has anyone has luck forming the hybrid .277 Fury brass to 6.5 or 6mm Creedmoor? Was the juice worth the squeeze? I’m thinking of putting together a 18 to 20” 6mm Creedmoor for coyotes, curious if reformed Fury brass could gain me back some speed from the shorter barrel.

Yes, I refrom hybrid 277 cases to many calibers. One being the 6.5 CM, I don't have a 6 CM, I'm a 6 Dasher fan.
I have described process in detail on this site, you can look it up it's been repeated many times to individuals.
I haven't ran varmint bullets in mine...just 140 gr, at 3100 fps & around 3000 fps for 147 gr, & 150 gr SMK is my favorite. Plus a few 153 Atips.
It's 24 factory barrel, but have a 26" Bartlein ready.
The powder that shines on the heavys is scarce, RL26...but a few others will get by.
As a varmint rifle with light bullets you lose velocity quickly with short barrels. Heavy bullets lose less velocity as barrels get shorter. So is it worth it for varmints, probably up to you, and your hunting style.
You'd probably gain a 100 to 150 fps, if that's important enough to mess with it is up to you.

I ran the 308 with hybrid cases with lighter bullets in different barrel lengths, but mostly in 22" Varmint SA, & 30" target long action.
110 gr 3400, 130 gr 3300 155/ 150 3100 in 22" (3200 in 30" ) 168 Berger 2960 fps
200 2800 fps (200 gr 2900 fps in 30")
225 gr 2709 in 30," in hybrid cases ....230 gr Atips 2620 fps in Lapua cases in 30"
If ya don't get the right powders the velocity doesn't go up as fast but the pressure does.

I run a 358 win over 3700 fps in a 16" AR 10 for close range varmints, same very light bullet over 2600 fps in 9mm 16" AR 15 ...inside a 100 yds and 33 rds to do it....the 9 mm bunny slayer extraordinaire, don't even have to worry about losing cases and no hybrid cases needed.

 

[st1650]

Yes, I refrom hybrid 277 cases to many calibers. One being the 6.5 CM, I don't have a 6 CM, I'm a 6 Dasher fan.
I have described process in detail on this site, you can look it up it's been repeated many times to individuals.
I haven't ran varmint bullets in mine...just 140 gr, at 3100 fps & around 3000 fps for 147 gr, & 150 gr SMK is my favorite. Plus a few 153 Atips.
It's 24 factory barrel, but have a 26" Bartlein ready.
The powder that shines on the heavys is scarce, RL26...but a few others will get by.
As a varmint rifle with light bullets you lose velocity quickly with short barrels. Heavy bullets lose less velocity as barrels get shorter. So is it worth it for varmints, probably up to you, and your hunting style.
You'd probably gain a 100 to 150 fps, if that's important enough to mess with it is up to you.

I ran the 308 with hybrid cases with lighter bullets in different barrel lengths, but mostly in 22" Varmint SA, & 30" target long action.
110 gr 3400, 130 gr 3300 155/ 150 3100 in 22" (3200 in 30" ) 168 Berger 2960 fps
200 2800 fps (200 gr 2900 fps in 30")
225 gr 2709 in 30," in hybrid cases ....230 gr Atips 2620 fps in Lapua cases in 30"
If ya don't get the right powders the velocity doesn't go up as fast but the pressure does.

I run a 358 win over 3700 fps in a 16" AR 10 for close range varmints, same very light bullet over 2600 fps in 9mm 16" AR 15 ...inside a 100 yds and 33 rds to do it....the 9 mm bunny slayer extraordinaire, don't even have to worry about losing cases and no hybrid cases needed.

Have you tried any VV powders in these as an alternative to RL26 ?

 

[45-90]

Have you tried any VV powders in these as an alternative to RL26 ?

No N560 runs the pressure up too fast for the extra velocity but it will get ya part of the way.
RL 26 is powder for the hybrid 6.5 CM case.
Pressure is reasonable enough to give you a cushion and velocity is high.
The powder in the 80,000 psi hybrid Fury case took over 60 tries to get the formula/ blend just right for one particular armor piercing bullet designed to defeat Russian body armor,....and was classified top secret during development.
So we're lucky to have RL26 because it's that good in this narrow application.
Last time I got it it was $53 per lb now if I find it it's 65-70 dollars per pound.
Superformance might be worth a try but it's pretty fast for this application but can yield good velocities, but how will it react as the pressures climb.

 

[dgheriani]

Have you put enough of these rounds through a 6.5 Creed barrel yet to burn one out? Curious how much barrel life you give up for the added speed?

 

[45-90]

I actually have an extra Bartlein barrel ready to go.
But I've built quite a few other projects I'm working on, and involved with, 510 whisper, 8.6 blackout, 338 ARC, 338 Spectre, only the 338 ARC is not built, the chamber reamer has not arrived... so I stopped messing with the 6.5 CM for a while, but I would suspect barrel life has to be a bit less.
Probably slightly more than 6.5 PRC, but that would give you an idea of what to expect.
Barrel life is always an iffy guess, because so many things influence it, like barrel material, barrel making process, shooting very hot barrels, cleaning, and ones perception of accuracy differs from person to person.
Plus not all the rounds one fires has to be the high pressure high performance rounds, unless you want to.