25SST and Hornady 134gr

[EagleEyeShooting]

Wanted to start a discussion and post results on some progress being made using Hornady's new 134gr ELD bullet.

Rifle specs:
DPGunworks Zermatt Origin Build
26" Sendero Contour Shilen Select Match 1:7.5 twist
25SST Rev B chamber
MDT HNT26
This is my current NRL Hunter rifle

Initial testing with the Hornady 134gr bullet is showing promiss but is definitely more picker than the 135gr Bergers out of my current 25sst. Picture of a loaded 134gr Hornady ELD next to a 6mm Creedmoor

First initial test are with rounds .030" off touch. (Barrel was removed and coal seated to touch point is felt). These projectiles in my current lot did not vary CBTO by more than .001" and COAL only varied .001-.004". Pretty impressed with the consistency of Hornady's 134gr

Initial testing at 100 yards shown here:

Groups are not so good as compared to the 135gr Berger load worked up.

Initial test:
134gr VVN565 @ 58gr: 3065 fps - No pressure
134gr VVN565 @ 58.5gr: 3090 FPS - No pressure
134gr VVN565 @ 59gr: 3109 FPS - No pressure

Next batch loaded at 59.5 - 61gr for testing

 

[AudentesFortunaJuvat]

How'd things go with the load development with the 134's and 565? Where did you end up with the 135LRHT's load wise? Did you try any other powders?

 

[DUCKMAN11]

The 25sst just looks like it should shoot well. It just looks good!

 

[Deerhunter85]

How did you 134eldm end up doing?

 

[sierracharlie338]

in for updates on this

 

[Phil Rizzo]

Neat. Dropped off most of the parts for a 25 SST build at GS this morning

 

[Gstew1930]

I'm fixing to start load delopment with the 134's in my 25 SST as well. 135's are done

 

[EagleEyeShooting]

in for updates on this

Sorry for the delay and getting updates out.
I have a ladder test loaded with Reloader 16 starting at 52gr and the 134gr Hornady bullet.

My pressure trace II system registered 51K psi and velocities already at 3K fps. Single digit SD's with this powder. I should get shots down range soon. Just been extremely busy building 22lr PRS rifles

 

[EagleEyeShooting]

Neat. Dropped off most of the parts for a 25 SST build at GS this morning

Hopefully they have the Revised B chamber reamer. I have both reamer sets and can vouch that the Rev A chamber will require fireforming the brass and also is a heck of a lot more picker

 

[Phil Rizzo]

My plan is to run 110-115's in the SST/B and the 135 in a Max/B. Have a 5 month wait on the Manners for it though

 

[DUCKMAN11]

Neat. Dropped off most of the parts for a 25 SST build at GS this morning

What barrel did you send in Phil?

 

[Phil Rizzo]

What barrel did you send in Phil?

#4 Bart factory fluted 1/4x6
8 tw going to finish it at 24"

max is getting the 28" med Palma