Calling all 243 owners!

[Brandon.miller.4]

Was the barrel stamped 8 twist?

Sure was

 

[Ernie]

Wasn't concerned about barrel life, if I was I'd have built a different cartridge! Moreso just curiosity lol. I'm liking how this 25 is shooting. May see another in the future.

My bad… it seems like so many people want performance, then get fearful of barrel life.
Anytime your curiosity wants information on short barrel performance, just let me know

 

[Bfish22]

Sure was

Thanks, good to hear confirmation that 8 twist 243’s are for real….I’m on the lookout for one.

 

[Rich M]

I have a remington 1:9 or 1:10 and it doesnt like long skinny bullets. Short and stubby for it.

Looked at the stability charts and they all said to get a faster twist for longer bullets.

That 1:8 is the way to go for what you want.

 

[Ernie]

Thanks, good to hear confirmation that 8 twist 243’s are for real….I’m on the lookout for one.

It's good that at least one company knows how to twist a 243 Winchester

 

[Bfish22]

Took em long enough…. But happy they are now

 

[Brandon.miller.4]

My bad… it seems like so many people want performance, then get fearful of barrel life.
Anytime your curiosity wants information on short barrel performance, just let me know

Do you typically find a faster burn rate powder gets better velocities with a shorter barrel or no? IE h1000 vs h4831sc in a prc with a short barrel and 133 or 140s?

 

[Ernie]

Do you typically find a faster burn rate powder gets better velocities with a shorter barrel or no? IE h1000 vs h4831sc in a prc with a short barrel and 133 or 140s?

These are all specialty pistols
I typically run H-4831sc in my 6-284 with 103 to 115's
H-4350 in my 6.5-284's with 130's and 140's
H-4350 and H-4831sc in my 284's (162-180)
H-1000 in my 25 PRC, 6.5 WSM (130-140), 7mm SAUM (160 clas bullets), and 7mm WSM (180's)
H-4895, Varget, and CFE223 in my 308's (155, and 168's)
H-!000 in my 7mm RM Imp (180's), 7mm LRH (180), and 7mm Dakota. (175-200)
Also use Retumbo and RL33 in my 7mm Dakota.
RL 33 in my 26 Nosler with 147's
Varget and H-4350 in my 6.5x47 Lapua with 130-140's
22 Creed's and 22GT's (80-90 grain bullets) MRP, H-4350, and Reloader 26

 

[Ernie]

6 Creed, 25, Creed, and 6.5 Creed = H-4350

 

[Brandon.miller.4]

These are all specialty pistols
I typically run H-4831sc in my 6-284 with 103 to 115's
H-4350 in my 6.5-284's with 130's and 140's
H-4350 and H-4831sc in my 284's (162-180)
H-1000 in my 25 PRC, 6.5 WSM (130-140), 7mm SAUM (160 clas bullets), and 7mm WSM (180's)
H-4895, Varget, and CFE223 in my 308's (155, and 168's)
H-!000 in my 7mm RM Imp (180's), 7mm LRH (180), and 7mm Dakota. (175-200)
Also use Retumbo and RL33 in my 7mm Dakota.
RL 33 in my 26 Nosler with 147's
Varget and H-4350 in my 6.5x47 Lapua with 130-140's
22 Creed's and 22GT's (80-90 grain bullets) MRP, H-4350, and Reloader 26

Thank you for all that info...I did a quick pressure test with h1000 and h4831sc the other day. To be honest the results puzzled me a bit, I hit pressure really early with h4831sc and just barely had the smallest amount of primer flattening with h1000 at my highest load. What are your thoughts on this?

 

[Ernie]

Had the brass been fireformed when you were using H-4831 or was it the first time shooting it/using it?
How far back did you bump the shoulder?

 

[Brandon.miller.4]

Had the brass been fireformed when you were using H-4831 or was it the first time shooting it/using it?

Virgin brass, was wondering if this had something to do...

 

[Ernie]

With my 25-284, I may start with H-4350.
#2 H-4831
#3 H-1000
It will be the first time for me, when I load for the 25-284.
25 Creed with 110 AB's, I use H-4350.
Time will tell.

 

[Ernie]

Virgin brass, was wondering if this had something to do...

Yep-That was probably it.

 

[Brandon.miller.4]

Would you rework your pressure test with once fired?

 

[Ernie]

Would you rework your pressure test with once fired?

I would give H-4831sc another try with the formed brass for sure

 

[Brandon.miller.4]

I might have to do that. I've never fire formed brass prior to load workup.

 

[Ernie]

I would

 

[Brandon.miller.4]

I would

If the fire formed stuff shows promise how would you go about fire forming all the brass?

 

[Ernie]

Just sent you a PM. Figure I can talk faster than I can type.