338BR/338 Whisper noob questions

[Spook]

10-4 Frank, me too. The Lehighs are waaay long and The scuttlebutt @ Hornady is a 285 gr., .338 that has the highest BC of any 338 bullet around which says "brass solid" to me...its gonna be long too.

You might want to give Glenhills in WI a call..his prices ar so reasonable for sized and lubed w/gas check that I couldnt see going through the trouble of casting my own.

[BWE Firearms]

MadRabbit,

I would also follow Spooks advice and go with a faster twist barrel then an 8" twist. I used the 8" twist because I was in a rush to get the prototype done and that is the fastest twist Shillen had in stock at the time. I did not think the 300 GR Match Kings were going to stabilize but they do.

As amfrank said its a lot different when you are a Class 2 manufacturer. If you destroy a suppressor in testing you simply build a new one.

Spook have you ever had a gas check come loose in a suppressor. I haven't used gas checks for that reason, and I have been playing with turning a rebated boatail on my .512 700gr cast bullets. I haven't been able to tell if it helps any but it doesn't hurt and it makes them easier to load.

[MadRabbit]

Don't sweat the hijack spook, this is all so new to me that I'm just basking in the knowledge being tossed around here, on topic or not. No hurt feelings on my end. Now on to the search for a .338 with a 1:6.5 or 1:7 twist...

[BWE Firearms]

Check with Shilen. I think they try to keep a couple of each of the faster twist barrels in stock. They were just out when I needed mine.

[alorton]

If you are looking for a .338 subsonic have you looked at the .338 Specter? Cases can be formed from 6.8 SPC or 10mm cases. While it won't give you the potential in supersonic, it comes in the lighter AR15 platform and if you just want to shoot suppressed subs there really is no disadvantage. Just a thought.

Heres the FAQ for the round at ar15.com:

http://www.ar15.com/content/page.html?id=559

[Spook]

Originally Posted by alorton

If you are looking for a .338 subsonic have you looked at the .338 Specter? Cases can be formed from 6.8 SPC or 10mm cases. While it won't give you the potential in supersonic, it comes in the lighter AR15 platform and if you just want to shoot suppressed subs there really is no disadvantage. Just a thought.

Heres the FAQ for the round at ar15.com:

http://www.ar15.com/content/page.html?id=559

338 W in an AR-15? You Bet! magazine capacity suffers somewhat but its definitely doable

[i8asquirrel]

This is all new to me what is the parent case for 338 whisper & 338 thumper? I have a 300 whisper that I love and I'm building a bolt gun in 300 whisper.......I must have been in a hole some where,,,,,I have never heard of either of these two rounds.

[Spook]

Originally Posted by i8asquirrel

This is all new to me what is the parent case for 338 whisper & 338 thumper? I have a 300 whisper that I love and I'm building a bolt gun in 300 whisper.......I must have been in a hole some where,,,,,I have never heard of either of these two rounds.

http://www.quarterbore.net/forums/showthread.php?t=4512

First post, lower pic, third cartridge from the left...338BR.

[BWE Firearms]

Here is a thread on the THUMPERS. The 338 THUMPER is designed for the AR platform.

http://www.quarterbore.net/forums/showthread.php?t=3655

[i8asquirrel]

DArn it.........there goes the bank account..those are sweet.