quietest 300BLK loads for bolt action.

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Shinigami
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quietest 300BLK loads for bolt action.

Post by Shinigami »

i have built a 300 BLK on a :
Blue printed Remington 700 action, Lothar walther stainless 1 in 7" barrel 15" long with a Wildcat evolution sound moderator
and id like to know the quietest loads if possible for the blackout, i have lapua brass and lil gun on hand but will get whatever is needed.
i have some American Eagle 220gr OTM subsonic ammo and its almost as loud as my other centerfires like my .204 ruger etc with a moderator on. which would lead my to believe that it isn't actually subsonic. i do have a chrono so will check and get back incase.
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bangbangping
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Re: quietest 300BLK loads for bolt action.

Post by bangbangping »

Welcome. The quietest loads are with light bullets and fast powder. This thread has a lot of information. viewtopic.php?f=141&t=92768
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Dolomite_Supafly
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Re: quietest 300BLK loads for bolt action.

Post by Dolomite_Supafly »

What powders do you have on hand?

What bullets do you have on hand?
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Shinigami
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Re: quietest 300BLK loads for bolt action.

Post by Shinigami »

Too many to list and i work in a gun shop so nothing is really an issue to get.
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dellet
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Re: quietest 300BLK loads for bolt action.

Post by dellet »

Knowing what brands are available to you and bullet weights you plan to use will help, since your not likely here in the U.S.

Vihtavuori N105, N110, N120 and Tinstar are my favorite for sound, cleanliness and accuracy.

Accurate #9 has some good applications.

Vectan has a couple powders that are growing on me BA9, BA6 and AO.
300 Blackout, not just for sub-sonics.
Shinigami
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Re: quietest 300BLK loads for bolt action.

Post by Shinigami »

Almost anything is available to me other than Lehigh Bullets but i should be getting some of those in the next month or so through a friend but other than that I want to shoot a 180-220gr sub load as well as a HV load with the 110gr barnes tac-tx bullets that i have.
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dellet
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Re: quietest 300BLK loads for bolt action.

Post by dellet »

In a hand fed rifle I use,

N105 with heavier bullets 175 and up
Trail Boss with bullets 125 and down
Tinstar with a mix of everything. You can basically use trail boss data, but has 2/3 of the bulk.

Here's a couple threads worth reading through there are a lot of hidden great loads.

viewtopic.php?f=128&t=98191

viewtopic.php?f=141&t=91549

For your 110s for me it's hard to beat H110/296

viewtopic.php?f=141&t=100161

I can possibly get more specific when I'm home if you have a certain combo you're interested in.
300 Blackout, not just for sub-sonics.
TRshootem
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Re: quietest 300BLK loads for bolt action.

Post by TRshootem »

We have been playing with some coated 155 gr Missouri under 4.0 gr of Tite Group. Stupid quiet! Also use the same powder in .223/55 gr SP(pulls). Again, just plain quiet in a RARR and Elite Iron Bravo 1. Fun stuff, cheap to shoot.

The .223 version will slap a 2" plate at 100 yds all day long and is quiet in the winter temps...like 0 and less. We have sold a few cans and bolt actions that way :)
hyrulejedi86
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Re: quietest 300BLK loads for bolt action.

Post by hyrulejedi86 »

My favorite ultra quiet load is the 150 gr plated xtreme bullets over trailboss. Easily as quiet as a 22lr bolt action suppressed with CCI standard velocity.
Shinigami
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Re: quietest 300BLK loads for bolt action.

Post by Shinigami »

Dont know if i should make another thread for this or not but is seating a few thou off the lands still recommended with sub sonics?
Also i have some Nosler Ballistic tip 220gr round nose boat tails on order for the blackout.
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