steven58
Member
Behold,
the Lightweight Precision Rifle! or as I like to call it "the sewer pipe"
Back in January, I decided to build a .308 Win. precision rifle based on the Teludyne StraighJacket system http://www.teludynetech.com/. My goal was to create a very accurate and relatively light weight rifle with improved consistency in long strings of fire and across widely varying ambient temperatures.
I started with a Savage left hand stainless short action with a light accu-trigger.
I added a Criterion stainless sporter weight match grade barrel, a milled recoil lug and a bolt lift kit.
The stock is a laminate take off from a Savage VLP I got second hand.
Scope is a Vortex Viper PST 4-16 X 50 FFP with mil reticle and mil turrets. Rings are Vortex premium and the bases are Nightforce 20 moa 2 piece. I used the 2 piece instead of the one piece for ease of loading the blind single stack magazine.
Bipod is an Atlas V8 that attaches to a small picattiny rail that replaced the front swivel. It has a horizontal hole at 6 o'clock to attach a sling QD. Unfortunately, I lost track of the brand.
The action and barrel are full length bedded with Devcon 10110 with the tang floated. All up the rifle weighs in at 13 lbs.
Before I get into how it shoots, please keep in mind that I am at best a mediocre shot. All groups were fired off of front and rear sandbags on a heavy solid bench.
Prior to sending the rifle to Teludyne I shot a reference group; 6 rounds of Federal Gold Medal Match 168 gr. SMK went into .65" at 100 yd. with the group slightly elongated on the vertical axis. As it was a match grade barrel I didn't expect any improvement in accuracy.
After Straightjacketing and bedding the same ammo grouped 6 rounds into .45" at 100 yd. The muzzle brake worked well reducing the perceived recoil to what my daughter's .243 Tika feels like.
I then fired a 50 round group. I tried as best I could to keep up a steady rate of fire (given the 3 round mag.) while at the same time being as accurate as possible (the muzzle brake really helped here) The group was about .90". Immediately after round #50, I grabbed hold of the barrel, opened the action and put my pinky finger in the chamber as far in as it would go.
While warm the outer jacket was not uncomfortable to hold or even what I would describe as "hot". The chamber, surprisingly, felt cooler than the barrel jacket I was holding with my other hand.
Based on my wholly subjective non scientific observations the system works. I have an accurate, stable and repeatable rifle system that is, relatively light weight and cost a total of just over $2,000.00.
I don't know if the StraightJacket is filled with a proprietary mix of sintered aluminum and copper in a high temperature aerospace epoxy or if its irradiated bat guano. All I can say is that it works for me.
Currently I am working up a handload for this rifle using 178 gr. A-Max in Lapua cases over 42 gr of Varget. My best 100 yd. 3 round group is .35". 6 round is .40" The one time I was able to shoot at 300 yd. my 6 round groups were running just under 1.5".
I have had this rifle out 4 times since I last adjusted the scope and the cold bore shot has not changed, nor has the center of the groups. I will be interested to see if this holds up as the temperature really begins to vary.
once I settle on a load, I want to try it in as cold and as hot an environment as I can get at my local range. I want to see how much of a difference it makes with this rifle for the first cold bore shot. I also want to try shooting this out to at least 600 yd. Unfortunately, that's a 1.5 hr trip and if I want a 1k yd. range that's a 3 hr trip. I will keep you posted.
On a less important note, Teludyne did a great cosmetic job of attaching their system. The brake clocks perfectly 3 - 9 o'clock and it came with a plain button if you don't want to use the brake. The finish that I chose was a mat finish carbide sandblast that just soaks up light and gives no reflection at all. They had a bunch of other finishes available in a range of textures. I asked for the least reflective and that's what I got. They also re-finished the action so it blends perfectly with the barrel treatment and cut the stock to take the barrel system.
the Lightweight Precision Rifle! or as I like to call it "the sewer pipe"
Back in January, I decided to build a .308 Win. precision rifle based on the Teludyne StraighJacket system http://www.teludynetech.com/. My goal was to create a very accurate and relatively light weight rifle with improved consistency in long strings of fire and across widely varying ambient temperatures.
I started with a Savage left hand stainless short action with a light accu-trigger.
I added a Criterion stainless sporter weight match grade barrel, a milled recoil lug and a bolt lift kit.
The stock is a laminate take off from a Savage VLP I got second hand.
Scope is a Vortex Viper PST 4-16 X 50 FFP with mil reticle and mil turrets. Rings are Vortex premium and the bases are Nightforce 20 moa 2 piece. I used the 2 piece instead of the one piece for ease of loading the blind single stack magazine.
Bipod is an Atlas V8 that attaches to a small picattiny rail that replaced the front swivel. It has a horizontal hole at 6 o'clock to attach a sling QD. Unfortunately, I lost track of the brand.
The action and barrel are full length bedded with Devcon 10110 with the tang floated. All up the rifle weighs in at 13 lbs.
Before I get into how it shoots, please keep in mind that I am at best a mediocre shot. All groups were fired off of front and rear sandbags on a heavy solid bench.
Prior to sending the rifle to Teludyne I shot a reference group; 6 rounds of Federal Gold Medal Match 168 gr. SMK went into .65" at 100 yd. with the group slightly elongated on the vertical axis. As it was a match grade barrel I didn't expect any improvement in accuracy.
After Straightjacketing and bedding the same ammo grouped 6 rounds into .45" at 100 yd. The muzzle brake worked well reducing the perceived recoil to what my daughter's .243 Tika feels like.
I then fired a 50 round group. I tried as best I could to keep up a steady rate of fire (given the 3 round mag.) while at the same time being as accurate as possible (the muzzle brake really helped here) The group was about .90". Immediately after round #50, I grabbed hold of the barrel, opened the action and put my pinky finger in the chamber as far in as it would go.
While warm the outer jacket was not uncomfortable to hold or even what I would describe as "hot". The chamber, surprisingly, felt cooler than the barrel jacket I was holding with my other hand.
Based on my wholly subjective non scientific observations the system works. I have an accurate, stable and repeatable rifle system that is, relatively light weight and cost a total of just over $2,000.00.
I don't know if the StraightJacket is filled with a proprietary mix of sintered aluminum and copper in a high temperature aerospace epoxy or if its irradiated bat guano. All I can say is that it works for me.
Currently I am working up a handload for this rifle using 178 gr. A-Max in Lapua cases over 42 gr of Varget. My best 100 yd. 3 round group is .35". 6 round is .40" The one time I was able to shoot at 300 yd. my 6 round groups were running just under 1.5".
I have had this rifle out 4 times since I last adjusted the scope and the cold bore shot has not changed, nor has the center of the groups. I will be interested to see if this holds up as the temperature really begins to vary.
once I settle on a load, I want to try it in as cold and as hot an environment as I can get at my local range. I want to see how much of a difference it makes with this rifle for the first cold bore shot. I also want to try shooting this out to at least 600 yd. Unfortunately, that's a 1.5 hr trip and if I want a 1k yd. range that's a 3 hr trip. I will keep you posted.
On a less important note, Teludyne did a great cosmetic job of attaching their system. The brake clocks perfectly 3 - 9 o'clock and it came with a plain button if you don't want to use the brake. The finish that I chose was a mat finish carbide sandblast that just soaks up light and gives no reflection at all. They had a bunch of other finishes available in a range of textures. I asked for the least reflective and that's what I got. They also re-finished the action so it blends perfectly with the barrel treatment and cut the stock to take the barrel system.
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