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Ruger GSR - Subsonic

This is a discussion on Ruger GSR - Subsonic within the Bolt Action forums, part of the Gun Forum category; So I got a wild hair and picked a Scout Rifle the other day. I am working on a subsonic 308 load for it. Had ...


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Old June 18th, 2013, 04:16 PM   #1
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Ruger GSR - Subsonic

So I got a wild hair and picked a Scout Rifle the other day. I am working on a subsonic 308 load for it.

Had some issues with impact walking as I shot. Have not bedded it yet, but i used some Bubba Tape to get the bbl off the stock, today.

So here are some results with W231 and cheap 147 bullets at 50 yards. I need to get the chrono out, but these should be about 1050 FPS.

10 rounds in about 4 MOA with the peep sights. Suppressor is being worked now - Ask me in 6 months how it worked out!!




Thanks from Dutch Gunny
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Old June 19th, 2013, 03:58 AM   #2
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How did you use the tape to get the barrel off the stock . . place it under the action?

I have a GSR . . love it with the exception of that goofy thing on the end of the barrel . .

. . . . not Me!! The OTHER end of the barrel . . where the pointy thing comes out . .

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Old June 19th, 2013, 04:00 AM   #3
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Very nice rifle

Thanks for your post, I really like this rifle and good that you shared the info on it.
What kind of adaptor do you have on it and what brand silencer you are going to use?
Planing to put a scope on it?
Keep us posted, good luck.

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Old June 19th, 2013, 06:01 AM   #4
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Very nice! How many grains of W231 did you use? I recently used 10 grains of Trail Boss to do the same thing with a Hornady 168 Molly coated match bullet. The bulk density of Trail Boss is such that 10 grains takes up most the volume in a case and would prevent double charging. I only loaded 10 and after sighting in at 25 yards, shot them through my chrono at a 10" steel plate 100 yards away; I hit it every time. They were flying at 975 fps and were very quiet until the bullet hit the steel :)

I looked really hard at the Ruger GSR but didn't want to spend that much and ended up with a Savage Hog for $425; no removable mag, but I am happy with it. At least it will fly under the radar of the gun grabbers who seem to faint in fear when the see a detachable "one time use clip"....um... I mean magazine ;)

May the next 6 months fly by for you; you think you are smiling now, just wait until you get that thing suppressed!

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Old June 19th, 2013, 08:08 AM   #5
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Lob, I taped behind the lug (about 1" square area) and around the rear screw tang. I think I will grind down the barrel channel today, remove tape, and see where the rcvr ends up - I think it will touch the stock only at the front and the rear. Lower sides of rcvr seem to be floating right now. Will probably bed the front lug area first.

Flash suppressor: looks OK to me, but I do need to remove it for the can, of course. Guess I will break out my bbl vice, and make some inserts to fit this barrel.

Dutch, the rifle rest is a kinda cheap one from Midway (Caldwell Rock Front Shooting Rest). I poured lead into the legs for more stability. When I am rich, I will get one of the $500 stainless ones from Sinclair!

Silencer? Looking at Gemtech and Yankee Machine.

Scope? Why add weight to a lightweight rifle? I did drill out the rear peep to make it more like a ghost ring.

Aggy - if I had trailboss, I would use it, but ... I have pounds of 231 and may try 10 gr of Unique again. Right now I use 6.5 grains of 231. Seems pretty good.

Yes the rifle is expensive - it is just a simple bolt action, after all. But my local dealer works with me (and he is usually on top!!): traded a 1917 Enfield, a brick of 22, and a can of 3006, and still had to throw $300 his way to close the deal. Oh well, its only money ...

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Old June 19th, 2013, 08:27 AM   #6
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Dave P, just watch the powder positioning in the case when you use that little of W231; if you start having problems, a can of Trail Boss goes a loooooong way at 10 grains a shot.

Also, you might want to take a look at AAC suppressors as well. I have an AAC 7.62 SD and I love it. I got it from Hill Country Class III in Austin, Tx and had it transferred to a local shop for $50; they were great to deal with. Also, I used an AAC Brakeout on the Hog.

http://www.google.com/imgres?imgurl=...QEwAQ&dur=4199



http://www.silencershop.com/


Have fun!

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Old June 19th, 2013, 03:01 PM   #7
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Was thinking about buying a scout and looked into can options. The SEI Vortex DC has the same threads but I don't know if it'll fit over the Ruger barrel beyond the threads. Wind Talker for the GSR Scout and the M14.

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Old June 19th, 2013, 03:28 PM   #8
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Quote:
Originally Posted by KyAggie View Post
Dave P, just watch the powder positioning in the case when you use that little of W231; if you start having problems, a can of Trail Boss goes a loooooong way at 10 grains a shot.

Also, you might want to take a look at AAC suppressors as well. I have an AAC 7.62 SD and I love it. I got it from Hill Country Class III in Austin, Tx and had it transferred to a local shop for $50; they were great to deal with. Also, I used an AAC Brakeout on the Hog.

http://www.google.com/imgres?imgurl=...QEwAQ&dur=4199



http://www.silencershop.com/


Have fun!

+1 on the boys from Silencer Shop. They are about a mile from my house.

Got my Surefire 7.62SS noise reducer from them. The paperwork was turned in and logged in by ATF on the 1st week of Dec, got the stamp the 1st week of June. I will be testing the can sometime in a couple of weeks on the JYWolfe newly built LRB M25.

Do you guys have any load data for 190 or 200 grains class projectiles?

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Old June 20th, 2013, 07:51 AM   #9
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Quote:
Do you guys have any load data for 190 or 200 grains class projectiles?
Bamban, I have not tried bullets that heavy since they would be at the edge of being unstable at 1000 fps from the barrels of my Hog and Springfield Scout; at least that's my understanding. It is very hard to find data on loading sub sonic. After scouring the web and looking at that magazine type publication Hodgdon puts out each year with loading data, which actually list some subsonic loads, I tried 10 grains of Trail Boss with a 168 grain bullet and it worked fine; the cases were new Winchester and the primers were FED210M. With a 190 or 200 grain bullet, I would try 12 grains and run them through my chrono and adjust the powder until they were flying around 1000 fps. Then I would make sure they were flying straight and always leaving the barrel before I put my suppressor on. You definitely do no want one going sideways before it leaves the end of the suppressor.

Enjoy the Surefire!

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Old June 20th, 2013, 07:59 AM   #10
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Quote:
Originally Posted by KyAggie View Post
Bamban, I have not tried bullets that heavy since they would be at the edge of being unstable at 1000 fps from the barrels of my Hog and Springfield Scout; at least that's my understanding. It is very hard to find data on loading sub sonic. After scouring the web and looking at that magazine type publication Hodgdon puts out each year with loading data, which actually list some subsonic loads, I tried 10 grains of Trail Boss with a 168 grain bullet and it worked fine; the cases were new Winchester and the primers were FED210M. With a 190 or 200 grain bullet, I would try 12 grains and run them through my chrono and adjust the powder until they were flying around 1000 fps. Then I would make sure they were flying straight and always leaving the barrel before I put my suppressor on. You definitely do no want one going sideways before it leaves the end of the suppressor.

Enjoy the Surefire!

Thank you.

I have a few 168 Bergers I can try for start. I also happen to have a few boxes of 190 SMKs left over from when I tried them. Either one should make a good hog busting round. I may even try some 190 VLDs for deer inside 200 yards.

Last night I went back to Sniper's Hide, it appears what you are using, Trail Boss is also popular over there. Hope the LGS here has the TB in stock.

Thanks again.


nez

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Old June 20th, 2013, 11:36 AM   #11
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Nez, are you looking at subsonic for the hogs?? My calculator says these slow loads only generate about 5-6-700 ft lbs of energy - not much better than a pistol.

Kinda whimpy for hunting, I would think. But then, those are TX hogs ... :)

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Old June 20th, 2013, 12:14 PM   #12
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Quote:
Originally Posted by Dave P View Post
Nez, are you looking at subsonic for the hogs?? My calculator says these slow loads only generate about 5-6-700 ft lbs of energy - not much better than a pistol.

Kinda whimpy for hunting, I would think. But then, those are TX hogs ... :)

Yes, for hogs. Shoot them behind the ear with a 22LR they go down for good. I've executed a few in the traps ranging from piglets to 2-300 pounds testing different pistol calibers. The most devastating so far is the 357 SIG 125 Speer Gold Dot coming out from a converted G35 to 357 SIG.

The reason I am looking for SS loads with the heaviest projectiles I can use to get the highest energy at SS velocity. Just found out JYWolfe used a 10 twist on my LRB M25, I think I will try to develop a load with the 215 Berger Hybrids, which I have or find some 240 SMKS to see if they don't keyhole before I stick the can in them.

Thanks from KyAggie
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Old June 20th, 2013, 03:15 PM   #13
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357 sig

I knew you were a Good Guy! I love my SIG P226 - very peppy round!

But back to the subject at hand: subsonic 308.

I bedded my GSR (had to beat the heck out of it to remove from the stock!). Opened up the bbl channel.

W231 load was still wandering, so I loaded up a "standard" load of 10 gr Unique with a Nos 168. Crimped lightly. Not sub-sonic, but i think I can work it down.

Seven rounds, Iron sights, benched, 50 yards. Six of them in "one raggedy hole (kinda)".


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