Suppressed 308 mauser

[kycrawler]

I am in the process of building an integral suppressed mauser rifle in 308 win caliber I have already submitted the atf from 1 about 5 weeks ago . Progress so far consists of removing the shot out barrel from the action turnng down the bolt handle d-t for leupold 1 piece base . The stock has been cleaned light sanded a crack repaired and glass bedded for the action , the stock will be replaced with a richards micro fit after the inital test firing is finished and i get the extra money . The barrel was a 24 inch adams and bennet short chambered 30/06 i set the shoulder back .480 and rethreaded it that leaves the perfect length for a 308 chamber and gives me .010 left to ream out at the shoulder . the barrel was shortened to 18 inches and threaded 1/2 28 at the muzzle and threaded
1 1/8-28 at the chamber end for the rear cap of the supressor to mount to

http://i16.photobucket.com/albums/b28/kycrawler/HPIM0323.jpg
http://i16.photobucket.com/albums/b28/kycrawler/HPIM0324.jpg
http://i16.photobucket.com/albums/b28/kycrawler/HPIM0326.jpg

[kycrawler]

main reason for this rifle is to shoot the lee 200 gr cast at barely subsonic velocity and have very little in the finished rifle , be able to maintain the suppressor myself and not have to spend $30 a box for 200 gr smk's


Does anyone have a .308 finish reamer i could rent or borrow ?

[Larry Gibson]

Problem with suppressors using cast bullets is the lube; it spins off when he bullet exits. Gunks up internal parts of suppressors. Been there, done that with Sionics suppressor on 308 Win.

Larry Gibson

[Johnch]

I looked into building my own suppressor for a 45 ACP , I have all paperwork
But have not mailed it off the the Fed's yeat

I thought I read where the suppressor has to be unable to be disasembled
Will the suppressor be removeable from the barrel , to some how clean out the lube ?

John

[kycrawler]

there will be very little lube on the boolits using the lee 200's with lee liquid alox even so the lube wouldnt be a problem as the suppressor will come apart in less than 5 minutes and can go into the parts washer or bead blaster as needed

this will be an integral design so remove the stock , remove muzzle end cap , remove tube from barrel (threads at chamber ) use broom handle to push baffles out of tube clean as required

a traditional bullet lube could also act as a medum and make the can quieter like using water oil or wire pulling gell

still need a chamber reamer some 1.5 inch aluminum tube and some 1 .5 inch alu round stock a small piece of 1.5 inch od 304 stainless and an approved form 1 in hand i dont plan on ordering the tube till i get the approved form1 in hand but i will get the barrel on and test fire it before then

[shooter93]

I shoot cast bullets through both my suppressors. They are SSK's though so they can be taken apart. Soaking them may or may not work...I've seen it go both ways depending on the unit.

[kycrawler]

you can build a supressor that you can dissassemble , you cannot have any extra suppressor parts at all , i currently am shooting a ruger 10/22 that i built a form 1 suppressor for and it is great i clean it about every 500 rounds much longer than that and it is pretty tough to get it apart the supressor tube will be a piece of 1.5 inch od .125 wall 6061 aluminum seamless tube i wll be using 6 k baffles and the first will be 304l stainless and the rest will be 7075 aluminum the barrel is 18 inches long and will have 10 .095 ports starting 8 inches from the chamber going out to the 14 inch mark all ports will be drilled in the grooves to help accuracy

the rifle should handle full power 308 loads fine but i am intending to just shoot heavy bullet sub loads out of it

[NSP64]

.....Why?

intending to just shoot heavy bullet sub loads out of it

[blysmelter]

The one and only area where norwegian law is better than US; we can just go to any gunstore and buy a silencer, or to our garage and make one:-). Suppressed rifles in .458 is getting quite poplulare around here, kalibers like 45/70, 458Socom, 450Marlin, 45Blaser and 458American mostly.

Castboolits work well in silencers, just do not overdo the lubrication, Lee LA is good.

[kycrawler]

.....Why?

because i want to :-D I realize this isnt for everybody but i like suppressors and I like shooting cast boolits with this rifle I can do both without earplugs It should turn out to be an interesting rifle thats cheap to shoot also have you ever shot anything with a suppressed 22 ? there insnt much there and this should provide enough power to take up to a deer sized animal out to 150 yards I shot a feral dog that was stalking some cattle with a suppressed ruger 10/22 75 yards i put 10 rounds in it and ended up finishing it with a ruger blackhawk 357

[HotGuns]

One thing about the using a .308 is to get subsonic speeds, your powder charge needs to be very light. Since there is so much space in the case, the powder spreads out and this can and will lead to erratic ignition and squib loads. You must be very careful when developing loads.

This is the very reason that the .300 Whisper,30-.221 and .300 Fireball became so popular.It uses a .223 case that is cut at the shoulder and then sized to a .30 caliber bullet. Using a 220 grain Sierra Match HP, it is accurate out to 300 yards and will easily shoot through a deer.

Since the bullet is actually longer than the case, there is very little room for powder. Using the normal loads of 8-10 grains of whatever, there is good ignition and a more consistent burn rate for the powder. This is an accurate load, and is used by the military for sentry removal.

Suppressing a .308 is yesterdays technology. Why don't you do a .300 Whisper ? Its much more efficient.

[kycrawler]

i have an ar in 300 whisper not really impressed , i had the mauser action and the barrel , the mauser action would work better with 308 than 300 whisper in both case head/extractor size and feeding from the mag and if i want to i can also shoot supersonic 308 out of it 308 sub loads are easy to roll trail boss works well as well as clays also i do believe that 7.62x39 would be a better choice than 300 whisper but i m building a 308

[shooter93]

The 308 will wprk fine...it's been done a lot. It was actually developed to feed through an standard 223 ar platform and use it's mags. I have a whisper single shoy myself. I don't use LLA so I'm having Veral cut a 250 gr. bullet mold that will keep the small grease groove and the base of the bullet in the neck. Bigger is always better when shooting sub sonic loads.our 45-70 is a real stomper. You'll have good luck with the 308 though I'm sure....get big bullets...lol.

[blysmelter]

Lapua makes 308-brass with reduced internal volume, would be perfect for such a project!

[PatMarlin]

This is the very reason that the .300 Whisper,30-.221 and .300 Fireball became so popular.It uses a .223 case that is cut at the shoulder and then sized to a .30 caliber bullet. Using a 220 grain Sierra Match HP, it is accurate out to 300 yards and will easily shoot through a deer.

Since the bullet is actually longer than the case, there is very little room for powder. Using the normal loads of 8-10 grains of whatever, there is good ignition and a more consistent burn rate for the powder. This is an accurate load, and is used by the military for sentry removal.

Suppressing a .308 is yesterdays technology. Why don't you do a .300 Whisper ? Its much more efficient.

That is cool! Never knew that. Hmmmm... :coffee:

[PatMarlin]

That is cool! Never knew that. Hmmmm... :coffee:

Does anyone know of a website with cartridge drawings and specs including wild cats?

My books just have all the standard stuff.

[PatMarlin]

Check this out...

http://www.youtube.com/watch?v=TFkmpHdGm0U&feature=related

[bohica2xo]

Well, since you have a start on a 308, why not just set back more and go for a .308 x 1.5 Barnes? About the same case capacity as the 222 rem.

http://www.reloadbench.com/cartridges/w308barnes.html

I have built a few suppresed rifles, and would re-think that .500-28 muzzle thread. With a .308 bore, there is not much wall there to hang a suppresor on. Even if you build it like the old HFZ cans, the muzzle thread is a bit small for a 30 cal.

B.