338 BR

[Wild_Bill]

Hi has anyone built a 338BR or 338 Whisper i am wondering what twist you are using for 300gr MatchKings will an 8 twist be ok? Did you just modify 7mmBR or 30BR dies?

Cheers Bill
Australia

 

[Ogre6br]

Is there enought meat in the neck of the 6 BR to neck it up so much??

Maybe the 7 BR would work. really depends on how thin a neck you want in 338??

later
P

 

[Wild_Bill]

There is plenty of neck i want to use Lapua cases not remington cases as the reamer will be made for Lapua already have 50 cases necked up no failures.

Just after any results with 300gr MatchKings at 1000fps and what twist worked for you


Cheers Bill
Australia

 

[P1ZombieKiller]

There is plenty of neck i want to use Lapua cases not remington cases as the reamer will be made for Lapua already have 50 cases necked up no failures.

Just after any results with 300gr MatchKings at 1000fps and what twist worked for you


Cheers Bill
Australia

Bill,

Did you ever get this cartridge working? Please list details of possible as I am also looking at doing something like this.

 

[Dusty Stevens]

I did a 338 whisper. Shot 300smk above a lil bit of lil gun. Not sure it would kill a squirrel at 50yds but it was cute and no ear muffs necessary

 

[z2013]

I have two IN 338BR. One is remington 700 action with 7 twist 16 1/2 barrel and other is DTA rifle with an 8 twist 22 inch barrel. Both shoot 300smk well subsonic. I use 200 gr. Hornady for supersonic.

 

[284driver]

Mine is an 8 twist. No problem shooting 250-300 grain bullets subsonic. Furthest I've shot is about 300.

 

[WayneShaw]

We need Randy Robinett to make a light 338 bullet and the score shooters would be all over this!