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June 27th, 2021

Sunday GunDay: Tennessee Triple — Voldoc’s Varmint Rifles

Varmint rifles 20 BR Stiller Diamondback 6mm Dasher

Shooting Prairie Dogs at extreme long range takes some highly specialized equipment. Forum Member VolDoc and his friends have taken long-range varminting to a whole new level. With his Savage-based, Hart-barreled 20 BR, VolDoc managed a verified 1,032-yard Prairie Dog kill, possibly the longest recorded with a .20-Caliber rifle. But that’s just part of VolDoc’s impressive precision varminting arsenal. Here we showcase three of VolDoc’s accurate rigs: his stunning English Walnut Diamondback 6BR/Dasher, his Nesika-actioned “Orange Crush” Dasher, and the 1K Prairie Dog-slaying 20 BR Savage.

Diamondback Switch-Barrel Rifle Specifications
The action is a Stiller Diamondback, drop-port. The custom stock is similar to a Shehane ST-1000, but crafted from 40-year-old English Walnut. [Editor’s note: the wood on this gun is gorgeous!] There are three barrels for the gun with three different chamberings: 6BR Brux 1:8″-twist HV; 6BRX Krieger 1:8″-twist HV, and 6mm Dasher Krieger 1:8.5″ twist fluted straight contour (no taper). The scope is a Nightforce 12-42x56mm, with 2DD reticle.

Stiller Diamondback 6mm Dasher English Walnut

Comments: This rifle is a good study in comparison of the three different chamberings. On the same rifle platform (same stock and action), each of these barrels had killed prairie dogs over 1,000 yards. So if someone asks which is best, a 6BR, or 6BRX, or 6 Dasher, VolDoc says they are all effective. The improved cartridges will deliver higher velocities, which can be an advantage. On the other hand it is simpler to load 6mmBR brass right out of the box, and it’s easy to find an accurate load for the 6mmBR (see photo).

Stiller Diamondback 6mm Dasher English Walnut

Nesika 6mmBR/Dasher Rifle Specifications
VolDoc’s “Big Orange Crush” rifle has a stainless Nesika ‘J’ action, with 2 oz. Jewell trigger, in a painted fiberglass Shehane ST-1000 stock. Originally a 6BR, the gun is now chambered as a 6mm Dasher with a .271 no-turn neck. The barrel is a 1:12″-twist Krieger fited with Vais muzzle brake. On top is a NightForce NXS 12-42x56mm scope with double-dot reticle. The double-dot gives precise aiming and lower dot can be used as an aming point, when you need a few more MOA of elevation in the field.

Nesika 6BR 6mm Dasher

Comments: Big Orange Crush shoots 87gr V-Maxs into bugholes at 3,400 fps. VolDoc’s load with the 87s is very stout, more than 32 grains of Vihtavuori N-135 with Wolf SRM primers. Cases are full-length sized, with an 0.266″ bushing for the necks.

Nesicka 6BR 6mm Dasher
This 3400 fps load with the 87gr V-Maxs has accounted for hundreds of Prairie Dogs killed from 97 yards to 1,050 yards. The 87gr V-Max at this speed literally picks Prairie Dogs up and throws them 10 feet vertically and laterally. VolDoc reports: “The barrel now has more than 3,000 rounds down the tube and exhibits little throat fire-cracking and no loss of accuracy. I can’t explain why, it just hasn’t deteriorated yet. This rifle is my best-ever ‘go-to’ Prairie Dog rifle.”

Savage 20 BR Rifle Specifications
The action is a Savage Dual Port, with an aftermarket Sharp Shooter Supply (SSS) 4 oz. Evolution trigger. The stock is a modified Savage factory unit that has been pillar-bedded. The factory barrel was replaced with a 28″ Hart stainless, 1:9″ twist barrel fitted with a Rayhill muzzle brake. The gun is chambered in 20 BR with a 0.235″ no-turn neck. Kevin Rayhill did the smithing. To provide enough elevation to shoot at 1,000 yards plus, Ray fitted a +20 MOA Bench Source scope base. This +20 rail is very well-crafted, and made especially for the Savage Model 12.

Savage 20BR

Comments: VolDoc reports: “When I got the Savage back from Kevin Rayhill, it still had my 6 BR factory barrel on it, as I use it to compete in Factory-class regional matches. I put on the new 20 BR Hart barrel Kevin had chambered and quickly put in a full day of load development using the 55gr Bergers (0.381 G1 BC) and the 40gr V-Maxs. Both proved very easy to tune and I soon had my loads. My 55gr Berger load with runs about 3590 fps. Varget was very accurate with the 55s (see load dev. targets below).

Savage 20BR load development targets

The mild recoil of the 20 BR, along with a very good muzzle break (Rayhill’s design) enables me to spot every hit or miss myself. Kevin also re-contoured the underside of the Savage stock so it tracks straight back on recoil, also making seeing hits easier.”

The 20 Caliber 1000-Yard Prairie Dog Quest

Savage 20BRMaking the 1032-Yard Shot with a 20 BR
by Dr. John S. (aka “VolDoc”)
This article covers my recent successful quest for a 20-caliber varmint kill past 1,000 yards. This may be a first — I couldn’t find anyone else with a confirmed 20-Cal Prairie Dog kill at 1000+. I started a thread on the Varmint section of the AccurateShooter.com Forum about building a 20 BR capable of 1,000-yard Minute of Prairie Dog accuracy and many said 20 Cal bullets just could not do it. Some came to my defense and said those that doubted had never studied the ballistics of the 20BR with the new Berger 55gr bullets now available. Well, folks, I can tell you, hitting a Prairie Dog at 1000 yards isn’t easy — but it IS possible. Here’s how it was done….

Gale-Force Winds and High Temps
After arriving at our Prairie Dog Ranch in Colorado, I soon realized my quest was going to be especially difficult because we had continual 40+ mph winds and 100° heat every day. We had a special place where Birdog and I had made many 1,000-yard+ kills in years past, so I knew the ideal location but needed a small window of opportunity either early morning or late afternoon. Based on past experience, I knew I needed about 21 MOA from my 100-yard zero to get to 1,000 yards. On the first day of the Safari, I shot the 20 BR in the 45 mph brutal winds and heat of 97°. But after about 20 shots, I connected on a dog and lifted him about three feet high. Well, that’s a start.

Savage 20BR

Winds Subside — Here’s Our Chance …
On the second day of our shoot, I had listened to the early weather forecast, so I knew that there was to be a brief period of light winds early in the morning. We were out on the Colorado prairie at daylight and the conditions were perfect. The sunrise was at my back and we had about a 10 mph tailwind. I looked through my Leica Geovid Rangefinder Binos and the Prairie Dogs were out for breakfast. I quickly ranged the targets and found a group at about 1,050 yards. The technique is to find the dogs, range them, click-up according to your ballistic chart and shoot.

Savage 20BR

My first shot was very, very close. I added about four clicks up and a couple of clicks left for windage and let another go. That shot threw dirt all over, but the dog didn’t even flinch. This is another good point to remember about long-range Prairie Dog hunting. To be successful, the dogs can’t be too skittish, because if they have been shot at even a few times, they will go down and stay down. So, you should have an agreement with those in your party as to where each member is going to be shooting and respect this boundary. Drive-by shooting style is OK if that’s your thing, it’s just not mine.

Savage 20BRHitting the Mark — Dead Dog at 1032 Yards
On the fourth shot, I saw the dog go belly up and kick its final throws. My quest for the 20-Caliber 1,000-yard Prairie Dog had become a reality. We confirmed the distance with our lasers at 1,032 yards. Our technique for retrieving a dead dog at that range is worth mentioning. When I killed that dog, I left it in the crosshairs of my Nightforce scope. My shooting buddy kept looking through the scope (of my gun) and guided me to the deceased dog using Motorola walkie-talkies. When I got to the dog I was jubilant. I marked it with my tripod and orange jacket, and we took some pictures. (See view through scope photo below). The 55gr Bergers require a center mass hit as they will not expand, especially at that range. I centered this dog in the head — his BAD LUCK, my GOOD.

After making the 1,032-yard kill, I shot many many other Prairie Dogs with the Savage 20 BR using the 40gr V-Maxs. The dog flights were spectacular — red mist and helicopters, counter-clockwise or clockwise on demand. I killed at least five at over 500 yards. I will not use the 55 Bergers on Prairie Dogs again since the quest is over. I will use the 40gr V-Maxs and 39gr Sierra BlitzKings for next trip’s 20 BR fodder.

Savage 20BR

CLICK HERE for More Info on Voldoc’s 20 BR Savage Varmint rifle »

Permalink Bullets, Brass, Ammo, Hunting/Varminting, Shooting Skills No Comments »
April 19th, 2017

Tiny Twenty Punches P-Dog at 1032 Yards — Voldoc’s Story

Voldoc Savage 20BR 1000 yard Prairie Dog

The “Holy Grail” of prairie dog shooting is dispatching a dog at ultra-long-range — the farther the better. Here we recount the quest of Forum member VolDoc to nail a Prairie Dog at 1000+ yards with a Savage .20-caliber rifle. If you’re a fan of the “Terrific 20s”, or have an interest in ultra-long-range varminting, you’ll enjoy this story. VolDoc, a dentist by trade, is a seasoned Prairie Dog Hunter who has made many trips to the P-Dog fields in Colorado with his hunting buddies. But until recently he had never managed to nail a P-Dog at 1000 yards with a .20-caliber rifle. Nor, as far as we can determine, had any one else. But VolDoc did it — accomplishing a verified Prairie Dog kill at 1032 yards, possibly the longest recorded with a .20-Caliber rifle.

READ .20-Cal 1000-Yard Prairie Dog Quest FULL STORY

Modified Hart-Barreled 20BR Savage Does the Job
Shooting Prairie Dogs at extreme long range takes highly specialized equipment. To make his 1032-yard kill shot, VolDoc used a modified Dual-Port Savage chambered in 20 BR. The stock was geometrically-uniformed and pillar-bedded by smith Kevin Rayhill, who fitted a 28″ Hart barrel with a Rayhill muzzle brake. VolDoc loaded his 20BR with 55gr Berger BT LR Varmint bullets (0.381 G1 BC) pushed by a stout charge of Hodgdon Varget.

Voldoc 20BR Savage Rayhill

It took good conditions, and patience to make the successful 1000+ yard shot. Voldoc explains:

“We were out on the Colorado prairie at daylight and the conditions were perfect. The sunrise was at my back and we had about a 10 mph tailwind. I looked through my Leica Geovid Rangefinder Binos and the Prairie Dogs were out for breakfast. I quickly ranged the targets and found a group at about 1,050 yards.

My first shot was very, very close. I added about four clicks up and a couple of clicks left for windage and let another go. That shot threw dirt all over, but the dog didn’t even flinch. On the fourth shot, I saw the dog go belly up and kick its final throws. My quest for the 20-Caliber 1,000-yard Prairie Dog had become a reality. We confirmed the distance with our lasers at 1,032 yards.”

Voldoc Savage 20BR 1000 yard Prairie Dog

Voldoc’s Accurate Arsenal
In our report on VolDoc’s successful 1K Prairie Dog quest, we spotlighted two of VolDoc’s other accurate varmint guns. First, fans of fine wood will love VolDoc’s switch-barrel, drop-port Stiller Diamondback rifle. The wood on this gun is stunning. The custom stock was crafted from 40-year-old English Walnut to match the profile of a Shehane ST-1000. The rifle has three barrels with three different chamberings: 6BR Brux 1:8″-twist HV; 6BRX Krieger 1:8″-twist HV, and 6mm Dasher Krieger 1:8.5″-twist fluted straight contour (no taper). The scope is a Nightforce 12-42x56mm, with 2DD reticle.

Voldoc Diamondback Dasher Drop-Port

VolDoc’s “Go-To” Prairie Dog Rifle — Big Orange Crush Dasher
Next, check out VolDoc’s “Big Orange Crush” rifle. This features a stainless Nesika ‘J’ action in a painted fiberglass Shehane ST-1000 stock. Originally a 6BR, the gun is now chambered as a 6mm Dasher with a .271″ no-turn neck. The barrel is a 1:12″-twist Krieger fited with Vais muzzle brake. Big Orange Crush shoots 87gr V-Maxs into bugholes at 3,400 fps, according to VolDoc. He tells us that “The barrel now has more than 3,000 rounds down the tube and exhibits little throat fire-cracking and no loss of accuracy. I can’t explain why, it just hasn’t deteriorated yet. This rifle is my best-ever ‘go-to’ Prairie Dog rifle.”

Voldoc 6mm Dasher Nesika Varmint Rifle 12-twist

Permalink Hunting/Varminting, Shooting Skills 2 Comments »
July 11th, 2012

A Day at the ‘Dasher Dome’ with Birdog and Voldoc

Report by Birdog
Forum member John S. aka “Voldoc”, came over Sunday to check the elevation come-ups on his new March scope. At my home range, dubbed the ‘Dasher Dome’, we had either a gong or paper target at 100-yard intervals to 800 yards. Voldoc wanted to check his ballistic chart against real world conditions. Voldoc will use this test to verify his come-ups for a “quick-view” BDC tape that will be applied to his elevation turret. He was running his “go to”, tried and true “red mist load”, an 87gr Hornady V-Max. The rifle was a Nesika-action 6mm Dasher with 1:12″-twist HV-contour Krieger. Doc has doubles with this combination out to 700 yards and many kills past 1,000. [Editor’s Note: We featured Voldoc’s varmint rifles in our Tennessee Triple Threat story, a Gun of the Week article on this site. Notably, Voldoc made a 1,000-yard plus prarie dog kill with a 20BR shooting 55gr Bergers.]

Dasher Dome Voldoc

My ‘Dasher Dome’ is a good place for testing. Dirt berms have just been completed at 100, 300, 600, 700, an 780 yards. Voldoc started at 100 and shot at 100-yard intervals recording his elevation at each interval. His ballistic chart was within a click or two at each distance. When he reached 780 yards, he repeated the test at each distance down to 300 yards. Dead on!

Dasher Dome Voldoc

BDC Turret Tape XterminatorCustom BDC Turret Tapes
Doc already has ballistics tapes fitted to his Nightforce-equipped rigs. But Doc’s new Dasher has a March so he need to confirm the come-ups. The tapes, made by Forum member Dominic (aka “Xterminator”), show rotation clicks for various yardages. There are versions for both standard and “High-Speed” Nightforce turrets, as well as some other scope brands. For more info, send email to: media-banc [at] videotron.ca . Learn more about Dominic’s custom come-up tapes in this Forum Thread.

Doc at the ‘Dome’

Confirmed results at 780 yards
Sub-Quarter MOA group on Steel Prairie Dog

The photo at right confirms that VolDoc has his zeroes confirmed at 780 yards. Look closely. That’s about a 1.5″ center-mass group on ‘Chico’ the prairie dog (lower right). Nice Shooting Doc! Chico’s buddy, ‘Chuckie’ the steel ground-hog, took many hits. Show in photo are three hits in the throat zone.

Good Friends, Good Rifles Make for the Best of Times
Birdog reports: “Overall, this was a great way to spent a Sunday. Temps reached 103° F, but Doc got to the ‘Dasher Dome’ at 5:30 a.m. and we beat the heat. After testing was completed, we walked two miles with temps in the 90s. What can I say — good friends, good BRs — this was the best of times!

Rangefinders

Birdog Dasher Dome

Serious Rangefinders:
Very high-quality laser rangefinders permitted the shooters to confirm target distances with great precision. Birdog uses a Vectronix LRF while Voldoc uses a Leica GeoVid rangefinding binoculars.

Rangefinders

Permalink Gear Review, Hunting/Varminting, Tech Tip 1 Comment »
December 5th, 2011

Forum Member Slays Prairie Dog at 1032 Yards with 20BR Savage

In our latest AccurateShooter.com feature story, we cover the quest of Forum member VolDoc to nail a Prairie Dog at 1000+ yards with a .20-caliber rifle. If you’re a fan of the “Terrific 20s”, or have an interest in ultra-long-range varminting, you’ll enjoy this story. VolDoc, a dentist by trade, is a seasoned Prairie Dog Hunter who has made many trips to the P-Dog fields in Colorado with his hunting buddies. But until recently he had never managed to nail a P-Dog at 1000 yards with a .20-caliber rifle. Nor, as far as we can determine, had any one else. But VolDoc did it — accomplishing a verified Prairie Dog kill at 1032 yards, possibly the longest recorded with a .20-Caliber rifle.

READ VolDoc’s .20-Cal 1000-Yard Prairie Dog Quest Article

Voldoc Savage 20BR 1000 yard Prairie Dog

Modified Hart-Barreled 20BR Savage Does the Job
Shooting Prairie Dogs at extreme long range takes highly specialized equipment. To make his 1032-yard kill shot, VolDoc used a modified Dual-Port Savage chambered in 20 BR. The stock was geometrically-uniformed and pillar-bedded by smith Kevin Rayhill, who fitted a 28″ Hart barrel with a Rayhill muzzle brake. VolDoc loaded his 20BR with 55gr Berger BT LR Varmint bullets (0.381 G1 BC) pushed by a stout charge of Hodgdon Varget.

Voldoc 20BR Savage Rayhill

It took good conditions, and patience to make the successful 1000+ yard shot. Voldoc explains:

“We were out on the Colorado prairie at daylight and the conditions were perfect. The sunrise was at my back and we had about a 10 mph tailwind. I looked through my Leica Geovid Rangefinder Binos and the Prairie Dogs were out for breakfast. I quickly ranged the targets and found a group at about 1,050 yards.

My first shot was very, very close. I added about four clicks up and a couple of clicks left for windage and let another go. That shot threw dirt all over, but the dog didn’t even flinch. On the fourth shot, I saw the dog go belly up and kick its final throws. My quest for the 20-Caliber 1,000-yard Prairie Dog had become a reality. We confirmed the distance with our lasers at 1,032 yards.”

Voldoc Savage 20BR 1000 yard Prairie Dog

Voldoc’s Accurate Arsenal
In our report on VolDoc’s successful 1K Prairie Dog quest, we spotlighted two of VolDoc’s other accurate varmint guns. First, fans of fine wood will love VolDoc’s switch-barrel, drop-port Stiller Diamondback rifle. The wood on this gun is stunning. The custom stock was crafted from 40-year-old English Walnut to match the profile of a Shehane ST-1000. The rifle has three barrels with three different chamberings: 6BR Brux 1:8″-twist HV; 6BRX Krieger 1:8″-twist HV, and 6mm Dasher Krieger 1:8.5″-twist fluted straight contour (no taper). The scope is a Nightforce 12-42x56mm, with 2DD reticle.

Voldoc Diamondback Dasher Drop-Port

VolDoc’s “Go-To” Prairie Dog Rifle — Big Orange Crush Dasher
Next, check out VolDoc’s “Big Orange Crush” rifle. This features a stainless Nesika ‘J’ action in a painted fiberglass Shehane ST-1000 stock. Originally a 6BR, the gun is now chambered as a 6mm Dasher with a .271″ no-turn neck. The barrel is a 1:12″-twist Krieger fited with Vais muzzle brake. Big Orange Crush shoots 87gr V-Maxs into bugholes at 3,400 fps, according to VolDoc. He tells us that “The barrel now has more than 3,000 rounds down the tube and exhibits little throat fire-cracking and no loss of accuracy. I can’t explain why, it just hasn’t deteriorated yet. This rifle is my best-ever ‘go-to’ Prairie Dog rifle.”

Voldoc 6mm Dasher Nesika Varmint Rifle 12-twist

Permalink Gear Review, Hunting/Varminting No Comments »