338 SHERMAN

[wilkup]

So I'm guessing a 1-10 twist would be too fast?

Hmm… I've never heard of a twist being too fast. Tell me more?

 

[CjC73]

My 338Sherman is a 10 twist.

 

[Deleted member 109523]

Hmm… I've never heard of a twist being too fast. Tell me more?

I'm probably showing my inexperience. but I thought you could spin a bullet too fast..
I'm running a 338 sherman max with a 10 twist, and it does shoot 200's and 225's very well. Both mono's and cup core.
I have a longer FB than the original reamer ( .100 ) over. So I mite have to jump them a mile just to seat them far enough.
It just sounds like fun to shoot a .338 at 3400 fps

 

[wilkup]

I'm probably showing my inexperience. but I thought you could spin a bullet too fast..
I'm running a 338 sherman max with a 10 twist, and it does shoot 200's and 225's very well. Both mono's and cup core.
I have a longer FB than the original reamer ( .100 ) over. So I mite have to jump them a mile just to seat them far enough.
It just sounds like fun to shoot a .338 at 3400 fps

Sure does
I would think a mono wouldn't come apart at higher RPMs, but maybe a traditional, cup and core type…?
I'm just considering the physics of such a possibility. Faster twist and higher velocity produce a higher RPM, which in theory could potentially tear a bullet apart. Being of solid copper construction, I'd think the threshold for such an occurrence would require significant force.

 

[Peter K]

Yeah I think im gonna have to try these!

 

[Deleted member 109523]

Sure does
I would think a mono wouldn't come apart at higher RPMs, but maybe a traditional, cup and core type…?
I'm just considering the physics of such a possibility. Faster twist and higher velocity produce a higher RPM, which in theory could potentially tear a bullet apart. Being of solid copper construction, I'd think the threshold for such an occurrence would require significant force.

I'm just imagining the report back on a 338 mono hitting an animal at say 3250 impact velocity.

 

[wilkup]

I'm just imagining the report back on a 338 mono hitting an animal at say 3250 impact velocity.

Grin city?

 

[Shane Lindsey]

Not seeing 338 Sherman dies on the website. Where you guys getting yours?

 

[elkaholic]

Not seeing 338 Sherman dies on the website. Where you guys getting yours?

Should be here in December.

 

[Shane Lindsey]

Thanks Rich,
I sent an email through your website asking so disregard.

What brand dies? Hornady?

 

[elkaholic]

Thanks Rich,
I sent an email through your website asking so disregard.

What brand dies? Hornady?

Yes, match grade bushing sets

 

[wilkup]

Yes, match grade bushing sets

What do they cost these days? I'm seriously considering sending my rifle down to JES for a rebore this winter to push those 175gr HHs next spring

 

[elkaholic]

What do they cost these days? I'm seriously considering sending my rifle down to JES for a rebore this winter to push those 175gr HHs next spring

$195

 

[wilkup]

$195

Any estimate on how fast those light 175s will go in a 24" barrel?