308 WIN 154 HHT Range Report

[gltaylor]

GM,
Load data when you finish....please. please, please!
I'm trying to populate the new HHT load spreadsheet. Need some more

 

[BFD]

Continuing…

I got a false read on my distance to lands first go. Sat them out to 2.800. Zeeeooww! That IMR 3031!



Next up 42gr 3031 and bring back the AA2520 in 45gr vs 44gr of last round. 2850 I should think.

 

[DiscoSteve]

Dood. I'd be happy with any of those groups multiplied 10X out of my 308.... Nice trigger work!

I got some 154HHTs in the mail, I just haven't had the opportunity to load them yet. I have a bunch of fed215M primers, maybe I'll try 44 gr of TAC with those! Your rifle has a 22" barrel? If so, it'll be 150ish fps faster than my 16" bbl.

 

[Richcotte]

Aaaaaand now I need a new barrel for my old 308 too....LOL

Time to update the old 1:11.75 twist

 

[BFD]

Dood. I'd be happy with any of those groups multiplied 10X out of my 308.... Nice trigger work!

I got some 154HHTs in the mail, I just haven't had the opportunity to load them yet. I have a bunch of fed215M primers, maybe I'll try 44 gr of TAC with those! Your rifle has a 22" barrel? If so, it'll be 150ish fps faster than my 16" bbl.

Yassir, 22" Burn the TAC if you got it! Heck. I least I have dynamite loads identified. Should further testing prove diminishing returns.

 

[BFD]

Aaaaaand now I need a new barrel for my old 308 too....LOL

Time to update the old 1:11.75 twist

Only if she don't handle the 154HHT...Nah, get a new barrel anyway, what am I thinking!

 

[Richcotte]

Only if she don't handle the 154HHT...Nah, get a new barrel anyway, what am I thinking!

Maybe I'll just get a new gun...LOL because she shoots bugholes with C&C bullets and it's not a hunting rifle.

 

[aratliff]

Now you’re talking! ARC Nucleus!

 

[Mountainman]

That's some fine shootin..........nicely done!!

 

[Muddyboots]

Obviously you didn't drink coffee! REALLY Nice trigger work Brad!!

 

[BFD]

Obviously you didn't drink coffee! REALLY Nice trigger work Brad!!

It would be 00 buck pattern if I didn't! I thought I was missing the paper on the 3031 load! No way did I think I could pull that precision with a 10X. No parallax correction scope.

 

[les]

Awesome groups! I shot up all of my 3031. I personally like the "Extreme" Powders. I'm going to try the new 154HHTs with Benchmark in my 308.
With my gain-twist barrel, I might be able to hit 3,000 fps.

 

[BFD]

Awesome groups! I shot up all of my 3031. I personally like the "Extreme" Powders. I'm going to try the new 154HHTs with Benchmark in my 308.
With my gain-twist barrel, I might be able to hit 3,000 fps.

I’ll put IMR 3031 and N135 in Extreme temp sensitivity.

 

[BFD]

IMR3031: Sticking at 41.5gr. 42gr only gave 30fps more velocity and bigger group.
AA2520: Sticking at 44gr. 45gr flew 10fps slower!
TAC: Gonna try 45gr for shiggles.

 

[joe16]

TAC: Gonna try 45gr for shiggles.

Stop this group crap and run that sucker till a primer pops. You're killing us

 

[BFD]

Stop this group crap and run that sucker till a primer pops. You're killing us

OH, DON'T YOU THREATEN ME WITH A GOOD TIME!

 

[BFD]

IMR3031: Sticking at 41.5gr. 42gr only gave 30fps more velocity and bigger group.
AA2520: Sticking at 44gr. 45gr flew 10fps slower!
TAC: Gonna try 45gr for shiggles.

45gr of TAC hit 2850fps 75F. 750ft ABSL. Slightest ejector mark on brass, but I could feel the rifle out of tune. Vulgar recoil and two distinct groups within the 5rnds on paper. Crapshow really. I'm at the wall with TAC as the SD was single digit. One sign was muzzle brake stinging my face upon shot.

44.5gr TAC next and then it's a wrap up. Just to see if I skipped a honey spot between 44gr and 45gr TAC. More than likely the 44gr will be the TAC load for 154HHT for this rifle. Secondary to the 3031, "Oh honey shush" load.

 

[cubdriver84d]

Getting ready to start working with the 154 HHT in my 16" 1/9T 308. Thinking I'm gonna try 8208 XBR to start. Have Benchmark too but worried it might be a little fast. edit: although just looked back at a burn rate chart and noticed 3031 and benchmark are right in the same neighborhood.

 

[BFD]

Getting ready to start working with the 154 HHT in my 16" 1/9T 308. Thinking I'm gonna try 8208 XBR to start. Have Benchmark too but worried it might be a little fast. edit: although just looked back at a burn rate chart and noticed 3031 and benchmark are right in the same neighborhood.

I should say if you can’t find a load between those three powders, we should stop the planet

 

[DiscoSteve]

So I tried to duplicate @BFD's 154 HHT load. I got some Lapua brass and tried some Fed 215M primers. The load was the 154 HHT over 43.9 gr of TAC, 2.800" COAL with 1/3T Lee FCD. I tried 2x fired Nosler brass and new Lapua brass. Both Averaged 2715 fps out of a 1-10 twist 16" barrel. 2 of the 3 Lapua cases had an ejector mark, but an easy bolt. No pressure on the Nosler brass and it shot sub MOA! I can count the number of MOA groups this rifle has shot on one hand, so if this load pans out, I'll be pretty happy!

I guess my next venture will be to try some CCI200 primers in the Lapua brass, and repeat the group in the nosler brass.

Any ideas why new Lapua brass would have ejector marks and not the 2x fired Nosler? I'd assume virgin brass would fireform more in the shoulder and not leave as much pressure signs on the case head, but I could be mistaken about that.