150 & 162 Gr ELD-X

[wabash503]

Need some help from folks that load 150 & 162 gr. ELD-X in 7mm-08. Doing some analysis on bullet dimensions, and the nearest store that carries them is a 4 hour round trip away from me.

Would you mind taking a few measurements of each...boat tail length, bearing surface length, base to ogive length. Similar to how Berger shares those dimensions for their bullets. Trying to get a sense of how much freebore is needed to seat the beginning of the bearing surface at the neck-should junction.

Thanks!
WB

 

[Pharmseller]

150 OAL: 1.397”
Bearing surface looks like .483”
BTO: .728”
Boat tail looks like .218”

 

[Pharmseller]

162 ELDX OAL: 1.472”
Bearing surface looks like.608”
BTO: .811”
Boat tail looks like .206”

 

[Pharmseller]

I’m betting an email to Hornady would get you better numbers than squinting at calipers trying to determine bearing surface.

 

[wabash503]

You are of course correct! They close at noon on Fridays over the summer though...tried that first. Appreciate the info!

 

[Pharmseller]

I load the 150 in 3 Tikka 7mm-08s over Big Game. No direction on jump, two rifles like kissing the lands, one likes a jump.

I tried the 162 but couldn’t get the velocity I wanted.

 

[Dark timber]

is this for a tikka, by chance? If so, the 150 eldx will seat with the bearing surface at the neck/shpulder junction and be around .030 off the lands. This is as a long (med) action.

 

[wabash503]

is this for a tikka, by chance? If so, the 150 eldx will seat with the bearing surface at the neck/shpulder junction and be around .030 off the lands. This is as a long (med) action.

Yep...I had a donor Tikka action sitting around from a 270 WSM I picked up a while back that I'm building one on. The reamer my smith has is SAAMI spec, which shows .191 from case mouth to ogive...and when I did all the math based on the 150 measurements, looks like it about .040 into the case w/ no room for jump.

Based on the .730 BTO, .210 BT Length, and .284 Case Neck...math says I need ~.240 (Case Mouth to Ogive) plus room to jump. I was planning on telling my gunsmith .300 to be able to run both / give some room for error.