338 270gr ELD-X

[Swamplord]

Anyone have the physical dimensions on the 270 eldx bullet? Oal, boat tail, bearing surface lengths? I wish Hornady would put specs out like Bergers quick reference sheet. Would make picking freebore a lot easier. Saami freebore looks to be about .160, leaving room for 0.520 bearing surface above neck/shoulder. From most reports, the eld bullets like jump, the X particularly. Getting everything lined up for my RUM build. Thanks for any help!

 

[highdrum]

Pro you are the man! Thanks @Swamplord

 

[brentc]

Ouch, that means seated properly coal will be 3.83" or so. Oh well.......does anyone know if the 338 rum is prone to donuts in neck? I have adg brass which is very tough, hopefully not much flows forward. Thanks for the info @Idaho Trecker

I've never had a donut with a RUM. Mine is chambered with a SAAMI reamer and with a 270 seated to.020", it ended up at 3.815" OAL, which by theory is about perfect to feed through a wyatt's standard mag box. It ended up not mattering though, the 270 didn't tune in until I seated it to .110" off with a 3.705" OAL.

 

[highdrum]

I've never had a donut with a RUM. Mine is chambered with a SAAMI reamer and with a 270 seated to.020", it ended up at 2.815" OAL, which by theory is about perfect to feed through a wyatt's standard mag box. It ended up not mattering though, the 270 didn't tune in until I seated it to .110" off with a 2.705" OAL.

@brentc , 2.815 with Hornady comperator? Or that's meant to ve 3.815? What brass are you using? I saw your screaming results with RL26. Hoping to duplicate that velocity with my build, 28" proof 1:9.3 barrel.

 

[brentc]

@brentc , 2.815 with Hornady comperator? Or that's meant to ve 3.815? What brass are you using? I saw your screaming results with RL26. Hoping to duplicate that velocity with my build, 28" proof 1:9.3 barrel.

Yes. I meant 3.815" and 3.705". I fixed it.

I'm using Nosler brass.