Sunday GunDay: Eliseo Tubegun in .308 Win — Great Palma Rig
Our friend Dennis Santiago is a talented Service Rifle shooter, who regularly competes with an AR shooting the .223 Rem cartridge. A few seasons back, he decided to go over to the “dark side”, putting together a Palma (fullbore) rifle chambered for the .308 Winchester. Dennis selected a Competition Machine (Gary Eliseo) R1 Chassis for the project. Here’s Santiago’s account of his “true blue” Palma build.
Palma Rifle Report by Dennis Santiago
“This project was a .308 Win Palma rifle with an Eliseo R1 chassis, Rem 700 action (blue-printed with PT&G upgrades), Jewell trigger, Boots Obermeyer 1:11″-twist barrel, and Phoenix sights holding Gehmann apertures. Next comes chassis and sling set-up, initial mechanical zeroing, and load development. Yup, I have a bunch of Peterson small primer .308 brass, Sierra #2156 155gr MKs, and Varget to get started with. I’m told I can drive 155gr pills to stay supersonic to 1K. Should make for an interesting 2020. My goal was to be cozy with this blue beast by the time the Berger Southwest Nationals kicked off in February 2020.”
CLICK Image for full-screen photo with more detail.
Pinning the Picatinny — For a Super-Solid Mount
One of the key parts of the build, Dennis explains, is mounting the top rail with pins: “Once the rail is aligned using a spin-centered optic, it locks down with three 3/16″ roll pins. That way there is no reliance on screws that can come loose. Above is a photo of the top of the Eliseo tube chassis showing the three, 3/16″ roll pins that unitize the Picatinny rail. You can also see the four brass screws that just kiss the action to fully stabilize it in the tube. The recoil ring buttresses completely around the action with metal to metal contact. There are a million details hidden inside a Gary gun.”
Phoenix Sights Front and Rear
Rise of the Phoenix — Here are the sights for the Eliseo R1. There are very few manufacturers left making these kinds of ultra-precise and repeatable iron sights.
 These Ray-Vin tools help set mechanical zero on the sights. Dennis notes: “Finally a reason to pull out the Ray-Vin calibration paraphernalia to set up a mechanical zero. This photo is for all of you who still remember that those barrel flats and screws in our sight towers actually had a purpose once upon a time.” |
Sling ‘N Irons — Classic Palma Configuration
Dennis plans to use an Eric Hollis sling with his new blue Palma rifle.
Peterson Small Primer .308 Win Brass for Santiago’s Rig
Dennis has used Peterson Cartridge Small Rifle primer .308 Win brass. Peterson offers a “Select” version weight-sorted and length-sorted at the factory. All Select casings (in a 50ct box) are guaranteed to be within 1 grain in weight and .001″ in OAL. Peterson Select brass is available for 20 different cartridge types, including .308 Win both small primer/small flash hole and large primer/large flash hole.
Now Adapted with a Scope
Currently (in 2025) Dennis has this rifle fitted with a high-magnification Nightforce zoom scope, and he competes with his blue prone rifle in the “Any-Any” division. He usually runs the scope at about 22X power. For an older guy with aging eyes, being able to run high-magnification optics is a big plus.
With the optics Dennis has found the rifle to be exceptionally accurate. Shooting 168gr bullets it has produced 5-round groups around 1/3-MOA during testing. And it can easily hold the X-Ring at 300 yards.
Getting the Blue Rifle Ready for the Berger SW Nationals
Dennis has campaigned his rifle at recent Berger Southwest Nationals (SWN) events. At the SWN a Palma shooter can shoot iron sights, or also fit a scope and shoot in the “Any Sights” category. The week-long Berger SWN is the biggest rifle match in the Western United States. Hundreds of shooters compete in both individual and team events. The SWN begins with the Mid-Range Nationals at 600 yards. Then the Long-Range matches are held, with targets out to 1000 yards. Watch the video to see the Ben Avery facility, home of the Berger SWN:
Chassis-maker Gary Elesio at the 2017 Berger SW Nationals. Gary shoots what he sells:
Forum member Watercam has a Pentax PF-80ED spotting scope that allows him to see 6mm bullet holes in the white at 600 yards. However, 6mm holes in the black are only visible out to 400 yards or so. Accordingly, Watercam uses a modified “reversed” black-to-white target for 600-yard practice. Watercam explains: “[Using the Pentax] With my 6mm and limited mirage I see defined, 6mm holes in the white out to 600. In the black, however, I can see bullets holes at about 400. I now use reverse-color targets for training without a pit partner at the 600-yard line.”
