Friday, August 25, 2017

Range Day with the Kel-Tec RDB and Ruger Gunsite Scout Rifle

Today I was off and was able to get to the range with the Kel-Tec RDB and my Ruger Gunsite Scout Rifle.

The IOR Valdada 3x25mm scope on the Kel-Tec needed to be zeroed, along with shooting the rifle for the first time. Due to limited time, I was only able to get the scope zeroed at 50 yards, and put only 60 rounds through the rifle. The ammo I shot was 20 rounds of Federal American Eagle .223 55 grain FMJBT and 40 rounds of Prvi Partizan 5.56mm M-193 Ball (55 grain FMJBT, but loaded hotter than .223-spec rounds). I fed the rifle from the Magpul Gen 3 20-round P-Mag that was included with it, and a Gen 1 20 round P-Mag.

The Kel-Tec's manual states that it comes from the factory with the gas system setup to function with M-193 spec ammo. I tested this by initially loading one round, to see if it would lock the bolt back after firing. It did so, and thereafter while I was sighting in, I loaded 3 rounds per magazine.

Sixty rounds isn't anything more than a basic function check but the rifle did work perfectly. The RDB has a 1:7 twist and doesn't seem to care for 55 grain ammo, however. Groups were about 2" to 3" at 50 yards, reminiscent of an AK. I plan to try it with 69 to 75 grain bullets to see if it shoots them more accurately.

The recoil impulse of the long-stroke gas system reminded me of an AK. Unlike an AR-15 or AK, I got absolutely no gun-schmutz in my face, since the top of the action is sealed.

Ejected cases fell at my feet.

Again, 60 rounds isn't much of a test but I was curious to how much fouling got into the gun. When I field stripped it, what fouling that existed was concentrated at the face of the piston and the gas head. (Part 156 in the diagram in the owner's manual. PDF document.)

After getting the RDB zeroed and finishing up 60 rounds, I turned my attention to the Ruger Gunsite Scout Rifle, which is chambered in .308 Winchester. I'd mounted a Leupold 1.5-4x Intermediate Eye Relief scope in low Warne QD rings on the factory rail back in April, but today was the first time I got to try the combination.

Yes, it's a lefty, the picture ain't reversed.

I put one 20 round box of old Hansen (made by Prvi Partizan) 147 grain FMJBT through the rifle to zero it, and a few shots of Prvi 165 grain JSPs through the Ruger. I was very pleased to see that the scope was almost on right out of the box.

Ruger GSRs have the reputation of shooting 165 grain and heavier bullets better than 150s or lighter. At 50 yards the 165s were all touching.

I especially like the Leupold IER scope. It permits mounting it far enough forward to allow plenty of space for bolt manipulation while not suffering as much from the annoyances of a long eye relief scope, such as limited field of view or susceptibility to glare if the sun is behind you. It's also mounted quite low to make quick acquisition easy.

I definitely need to get both rifles back to the range for final zeroing at 100 yards, and of course to see if the RDB continues to function well. I'll be carrying the Ruger this year for deer hunting.

1 comment:

Oleg Volk said...

In my experience, RDB is significantly more accurate with 75-77gr match than with lighter bullets.