The pieces are starting to show up. The JP guts are coming from Brownells. I have to send the bolt to John at Keystone for head spacing. One more package from OpticsPlanet and I can start assembly. I’m getting excited!
- Thread starter DRAM40A1
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Nice-what barrel-or did I miss that part?
22” Krieger +2 gas from John at Keystone.
Looks like a nice build. I predict you wanting to switch to a more precision oriented trigger at some point though.
I was thinking a Larue MBT for under $100 would look pretty sweet myself 
Geissele SD-E....they are having a 20% or Christmas sale right now.
That trigger is actually going into an AR 15 and I’m using the JP that’s in the AR in this rifle. I’ll definitely get the SD-E in the near future. Just trying to save a few bucks to go towards scope and mount.
Geissele is having the 20% sale?
Yep. 12/21-12/23
Probably wont see another one for a while after this if history repeats itself
Other than the flat trigger, what advantage would the SD-E have over the SSA-E?
I’m not sure how I would like the flat trigger and I found a hell of a deal on the SSA-E at Palmetto.
I’m not sure how I would like the flat trigger and I found a hell of a deal on the SSA-E at Palmetto.
Same trigger, just curved vs flat. I prefer flat on all my guns but SSA-E is great too.
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I went through a bout of trying triggers to find something to standardize on in my rifles.
The SD-E and SSA-E are the same trigger with the exception of the bow. I've had both and they are nice in both my 6.5 & 6 Creedmoor. Worked well in my 6.5 Grendel as well. I do prefer a curved bow myself. Tried the flat bow on both the SD-E and a CMC.
Tried MBT's in all my AR precision rigs. They didn't make the rankings the Geisselle's did. If you can try both, do. See if you like the flat bow. Either way, an SSA-E or SD-E you won't go wrong with and if you can get a good deal on them all the better.
ETA: that's a great deal, I'd snag it.
The SD-E and SSA-E are the same trigger with the exception of the bow. I've had both and they are nice in both my 6.5 & 6 Creedmoor. Worked well in my 6.5 Grendel as well. I do prefer a curved bow myself. Tried the flat bow on both the SD-E and a CMC.
Tried MBT's in all my AR precision rigs. They didn't make the rankings the Geisselle's did. If you can try both, do. See if you like the flat bow. Either way, an SSA-E or SD-E you won't go wrong with and if you can get a good deal on them all the better.
ETA: that's a great deal, I'd snag it.
That's what Geissele was selling them for over Black Friday when I picked up two more of the SSA FCGs.
No way they'll be cheaper than that so your PSA deal is solid.
I’ve been buying 130 Hybrids and have a few boxes of 140 AMAX left. What’s a good starting point for the 130s?
I have a couple hundred 140 AMAXs loaded up with 41.5 H4350 that I was shooting in a Ballistic Advantage Aero build. I’m going to start with that and get it tuned and broken in.
I have a couple hundred 140 AMAXs loaded up with 41.5 H4350 that I was shooting in a Ballistic Advantage Aero build. I’m going to start with that and get it tuned and broken in.
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I’ve had great results from 43.0 grains of H4350 behind the AR Hybrid 130 OTM Tactical with a 2.830 (TL3) or 2.815 (Howa 1500) COAL(*). I like 130s because you still have a great BC, but can get them going pretty fast. Also, Prime 6.5s use Norma Golden Target 130 bullets, which have a nearly identical BC to the Berger 130s, and I get the same MV as my load, so if I need to use factory ammo, I’ve got something that’s almost identical.**
* I can’t run 2.830 in the Howa because the MDT ESS chassis it’s mounted in only takes MDT plastic mags with the Howa, and they only go to 2.815.
** I don’t use Golden Targets for my hand loads because I’d already stumbled on the Berger load, and I believe Berger makes a slightly better product. The Golden Targets are less expensive, though.
Here's how my Keystone barrel shoots the 130 AR Hybrids with H4350. I only record Base to Ogive but I believe they are around 2.835" COAL. I run KAC and ASC SS mags which allow you max COAL out to 2.87 or so
My plan was to start out at 2.825. I'll start at 42.5 and work up from there. I have KAC magazines as well for the longer seating depth. It's eating me up to be at work today!!
I was wondering how the UBR would look with a longer barrel. The Gen 3 PRS has a very looong length of pull. I like it, thanks for posting!
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