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August 9, 2013, 11:46 AM | #1 |
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Anyone loading subsonic .300 blackout
I've got a .300 blackout SBR suppressed on its way and with subsonic ammo hovering above $2 a round I'm looking into reloading.
Can anyone recommend a recipe and where in the world I can find supplies at? |
August 9, 2013, 11:53 AM | #2 |
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Anyone loading subsonic .300 blackout
First off, do you have any reloading equipment at all?
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August 9, 2013, 01:09 PM | #3 |
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Anyone loading subsonic .300 blackout
Yes, just wondering what everyone else is doing with this load.
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August 9, 2013, 01:27 PM | #4 |
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Re: Anyone loading subsonic .300 blackout
With 208 amax I have used 5744 with between 10-11 gr charges and had them be subsonic.
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August 9, 2013, 02:07 PM | #5 |
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Nothing to add, just want to follow the thread.
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August 12, 2013, 04:05 PM | #6 |
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Anyone loading subsonic .300 blackout
Would anyone care to divulge what their cost for reloading their .300 blackout assuming that they don't already have brass
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August 12, 2013, 05:06 PM | #7 |
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Most people loading .300 BLK will convert their own brass from cut down .223 Rem.
As for the cost taking a quick look at most people's loads I would say around $0.52 a round using $45.00/100 208gr Hornady A-Max, $35.00/1,000 primers and $23.00/Lb (7,000gr) H110, 10gr of H110. Check your own load data and don't rely on other people to blow you up. |
August 12, 2013, 05:53 PM | #8 |
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.300 Blackout
Has anyone noticed any significant ballistic differences? Like what is the velocity at 100 yards and is there a significant adjustment to be made for longer ranges?
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August 12, 2013, 05:55 PM | #9 |
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Anyone loading subsonic .300 blackout
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August 12, 2013, 06:00 PM | #10 |
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Anyone loading subsonic .300 blackout
I was just curious how it compares to say the .300 Winchester or WSSM. I am just curious if it is worth the money to try the Blackout or just stick with a regular .300 Winchester. I am just curious about the all around ballistics of the blackout. Yeah I am curious about a lot. But I found the round intriguing just not sure if it is enough to sway me to it.
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August 12, 2013, 06:09 PM | #11 | |
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Anyone loading subsonic .300 blackout
Quote:
If you drop the .300 blackout to a 125 gr bullet (instead of closer to 200 gr mentioned earlier) it will go a tad over 2,000 FPS - but then it is not subsonic. And if you want a .300 Win mag AR....well it's going to cost you a lot of money. The .300 Win mag is just coming into its own around 800 yards. The .300 blackout is running out of gas around 600 yards. |
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August 12, 2013, 06:20 PM | #12 |
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Anyone loading subsonic .300 blackout
Thanks that is the information I was looking for. I was wandering where the leveling out was. I am still keeping my .308 for long range but I was playing with idea to have a little bigger toy. I am still liking the idea of the .338 lapua. A little over kill around here but you never know when you may need something to knock over a pig. Thanks again for the information
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August 12, 2013, 06:52 PM | #13 |
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Anyone loading subsonic .300 blackout
Well, the .338 Lapua costs in the area of $5/shot.... If you are shooting out past 1500 yards then sure, but until then it really is not practical from a shooting perspective except just for fun.
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August 12, 2013, 09:11 PM | #14 |
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The usefulness of the .300 BLK is to have a 30cal round which can be fired out of an AR-15/M4 while using the existing magazines to full capacity, existing bolts.
To have the same ballistics as 7.62x39 when using supersonic ammo and the ability to use subsonic ammo for use with a suppressor. The ability to fire .30 cal subsonic rounds with a supressor is the most interesting reason for most. |
August 13, 2013, 02:16 AM | #15 |
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I think that since it's such a low velocity round that it would be a natural for use with cast bullets. Anyway it sure would bring the cast per round down...
Tony |
August 13, 2013, 10:08 AM | #16 |
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Re: Anyone loading subsonic .300 blackout
The problem is most people shooting subsonics are using a can and shooting lead through a can is generally frowned upon
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August 14, 2013, 01:11 AM | #17 |
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Why? Please enlighten me. It's not like I can afford a silencer to find out why...
Tony |
August 14, 2013, 09:22 AM | #18 |
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Shooting cast ammo through a silencer is sometimes a bad idea due to the buildup of lead which plates out on the internals. Most 22lr cans can be taken apart for cleaning.
I have an all stainless 308 silencer (welded together) that I use on my 300 blackout with subsonic cast bullets. I keep track of the weight and if it gains too much I will soak it in a solution of hydrogen peroxide and vinegar to remove the lead and other fouling. There is a hazmat disposal site near my home where I can dispose of the hazardous lead acetate solution for free.
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August 15, 2013, 01:32 AM | #19 |
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I suppose you could soak it in Ed's Red to wash out the fouling too. It seems a little silly to me to make something like this that cannot be taken apart for a proper cleaning but I don't have much experience with these things...
Tony |
August 15, 2013, 09:12 AM | #20 |
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Anyone loading subsonic .300 blackout
The shop that's building my suppressed .300 upper told me that they shoot cast bullets at subsonic all the time through their cans.
This is mainly due to the availability and price of .300 ammo. I can't believe some places are charging $3 a round |
August 15, 2013, 04:00 PM | #21 | |
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Quote:
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August 15, 2013, 04:25 PM | #22 | |
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Quote:
The internal design of most sealed suppressers is public knowledge. Whether it's people "jailbreaking" the can and putting pictures of the baffles online, or companies like Silencerco posting videos of their sealed cans being assembled, where you can see the baffle design clearly. I'm sure there are a few companies who prefer to keep their design as secret as possible, but the truth is that sealed center-fire rifle cans tend to be quieter and stronger and they don't ever need to be cleaned unless you're shooting lead bullets through them. The pressure is high enough that almost all the carbon fouling is blow right out of the can, and the thin layer that remains helps protect the baffles from heat and pressure and makes the can last longer, but this thin layer of carbon never gets too thick because of the huge amount of pressure going through the can with every shot.
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August 15, 2013, 04:44 PM | #23 |
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Theohazard thank you for setting me straight.
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August 15, 2013, 05:15 PM | #24 |
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Anyone loading subsonic .300 blackout
Some can manufacturers will service them for you as well if they cannot be disassembled but need a good cleaning.
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August 15, 2013, 05:15 PM | #25 |
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I reload a 245 grain cast in the 300 Blackout. The trajectory is like throwing a brick out 50 yards and you can shoot, then listen for a second, and hear the round hit the target 100 yards away. I only use the 115 grain for serious shooting out to 200 yards. The heavier rounds with less powder are like mortars in their trajectory. If you need a ton of information on reloads go to 300blacktalk.com.....
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