J Mack
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« on: April 21, 2010, 08:59:51 AM » |
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I’m doing some research for a project and thought I would share this information. Part 0ne Link: http://guns.connect.fi/gow/arcane1.htmlPart Two Link: http://guns.connect.fi/gow/arcane2.htmlPart Three Link: http://guns.connect.fi/gow/arcane3.html |
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I contend that for a nation to try to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle.-- Winston Churchill
I.N.T.E.L.L.I.G.E.N.C.E. is down! I repeat, we have no I.N.T.E.L.L.I.G.E.N.C.E.
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Boise Shooters
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« on: April 21, 2010, 08:59:51 AM » |
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RGinIdaho
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« Reply #2 on: April 21, 2010, 07:16:08 PM » |
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Round lead balls and a couple of grains of bullseye in the 30-30 and you are good to go...
Paco Kelly used to write about these.
Put some together years ago. Well, I better quit while I'm ahead...
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Some people are like Slinkies - not really good for anything, but you can't help but smile when you see one tumble down the stairs.
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J Mack
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« Reply #3 on: April 21, 2010, 08:55:03 PM » |
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Lefty Great minds think alike! Trail Boss looks like the hot setup for the .308 subsonic loads. I’m still working out some details for the rifle but it looks like I will probably build an 18” barreled .308 in a billet folding stock for an ultra compact quiet package. |
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I contend that for a nation to try to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle.-- Winston Churchill
I.N.T.E.L.L.I.G.E.N.C.E. is down! I repeat, we have no I.N.T.E.L.L.I.G.E.N.C.E.
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TrooperBrian
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« Reply #4 on: April 22, 2010, 01:53:13 AM » |
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I was going to wait to make this thread until I picked up a suppressor, so thanks for the thread Jim!
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"I'm not a big believer in "it can't be done". Those who usually say that generally turn out to be ether ignorant or lazy..." -Mr Blasty, Glock Talk
“Carrying an empty chamber is like, well, having a smoke detector with an air filter.” -Jimbo45
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J Mack
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« Reply #5 on: April 22, 2010, 08:06:20 AM » |
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I was going to wait to make this thread until I picked up a suppressor, so thanks for the thread Jim!
I listed the sites above more as a fun read loaded with cool facts. Please before you try to load a modern rifle cartridge with pistol powder do your homework. Some things to look at, Secondary Explosive Effect (SEE) and bullets sticking in the bore. http://members.shaw.ca/cronhelm/DevelopSubsonic.htmlhttp://members.shaw.ca/cronhelm/762ProjectRifle.html |
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I contend that for a nation to try to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle.-- Winston Churchill
I.N.T.E.L.L.I.G.E.N.C.E. is down! I repeat, we have no I.N.T.E.L.L.I.G.E.N.C.E.
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technique
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« Reply #6 on: June 13, 2010, 06:59:13 PM » |
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8.5gr. Trailboss
LC brass
30-30 cal. .308dia 170gr Sierra FN
CCI primers
= 885fps
The sweet spot for me was around 9.5gr. going just over 1000fps., same materials.
Once I got into 10-11gr. I was around or above 1100fps and no longer subsonic.
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Yay though we walk through the shadow of the valley of death, we will fear no evil...for we are the baddest mother fuckers in the valley
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technique
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« Reply #7 on: June 13, 2010, 07:05:55 PM » |
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.....also, it's recommended you do not crimp these subsonic loads. I did a light crimp for an auto loader and all was well.
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Yay though we walk through the shadow of the valley of death, we will fear no evil...for we are the baddest mother fuckers in the valley
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TrooperBrian
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« Reply #8 on: June 13, 2010, 10:03:51 PM » |
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8.5gr. Trailboss
LC brass
30-30 cal. .308dia 170gr Sierra FN
CCI primers
= 885fps
The sweet spot for me was around 9.5gr. going just over 1000fps., same materials.
Once I got into 10-11gr. I was around or above 1100fps and no longer subsonic.
I'll keep that in mind! I hope to be handling some suppressed goodness here pretty soon. |
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"I'm not a big believer in "it can't be done". Those who usually say that generally turn out to be ether ignorant or lazy..." -Mr Blasty, Glock Talk
“Carrying an empty chamber is like, well, having a smoke detector with an air filter.” -Jimbo45
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TrooperBrian
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« Reply #9 on: June 13, 2010, 10:18:14 PM » |
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Thanks Jim for the great info on SEE too..
I'll probably be starting with some Bullseye, I have tons of it.
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"I'm not a big believer in "it can't be done". Those who usually say that generally turn out to be ether ignorant or lazy..." -Mr Blasty, Glock Talk
“Carrying an empty chamber is like, well, having a smoke detector with an air filter.” -Jimbo45
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TrooperBrian
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« Reply #10 on: July 16, 2010, 02:14:16 AM » |
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Has anyone tried the Bullseye load? It would seem to me that 7.0gr fills a dangerously small amount of the case.
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"I'm not a big believer in "it can't be done". Those who usually say that generally turn out to be ether ignorant or lazy..." -Mr Blasty, Glock Talk
“Carrying an empty chamber is like, well, having a smoke detector with an air filter.” -Jimbo45
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zona5101
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« Reply #11 on: July 16, 2010, 05:13:34 AM » |
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i have successfully loaded 168g bthp using titegroup. iirc it was in the 8 g area. it was fairly accurate at 100y (3' group), some evidence of keyholeing. Fun to dink with but not enough accuracy for precision marmot work.
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B2
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sheepdog1
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« Reply #12 on: July 17, 2010, 09:27:32 PM » |
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there are susonic loads on just about every powders website. just make sure you see bullet inpact . no they arent accurate bullet weight will be a factor and will not operate a gas gun no matter how many times you see it in the movies
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TrooperBrian
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« Reply #13 on: July 18, 2010, 12:48:16 AM » |
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i have successfully loaded 168g bthp using titegroup. iirc it was in the 8 g area. it was fairly accurate at 100y (3' group), some evidence of keyholeing. Fun to dink with but not enough accuracy for precision marmot work.
I read not to use Titegroup because the nature of that double base powder makes SEE much more likely.  |
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"I'm not a big believer in "it can't be done". Those who usually say that generally turn out to be ether ignorant or lazy..." -Mr Blasty, Glock Talk
“Carrying an empty chamber is like, well, having a smoke detector with an air filter.” -Jimbo45
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technique
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« Reply #14 on: August 10, 2010, 07:05:21 PM » |
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I read not to use Titegroup because the nature of that double base powder makes SEE much more likely. That's why I like the TB...it's fluffy, a lot of powder weighing very little. Fills 'em up. Worth the $16...works for .223 also. |
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Yay though we walk through the shadow of the valley of death, we will fear no evil...for we are the baddest mother fuckers in the valley
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J Mack
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« Reply #15 on: September 09, 2010, 11:24:25 AM » |
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Ok I just picked up some bullets and I’m impatient and don’t want to wait until I finish my 1-10 twist barrel and decided to do some testing today but it’s too cloudy to use the crono so I’ll have to wait for a better day to resume.
Bullet: 220 GR Hornady round nose
Laupa Brass
14 GR of Trail Boss powder
Win Mag primer
.308 /18” tight bore barrel 1-11.5 twist
I started with a higher start load of 14gr’s of TB with the intent of working down as recommended but stopped here until a better day. This load exceeded my expectations and shot two groups under an inch @ 100 and seemed reasonably quiet even shooting from inside my shop.
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I contend that for a nation to try to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle.-- Winston Churchill
I.N.T.E.L.L.I.G.E.N.C.E. is down! I repeat, we have no I.N.T.E.L.L.I.G.E.N.C.E.
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