Search found 338 matches

by Suputin221
Mon Nov 18, 2019 1:15 am
Forum: Main Discussion Area
Topic: Optimum barrel length?
Replies: 14
Views: 11229

Re: Optimum barrel length?

I have 7", 10" and 12" Ar's but the 10" is my favourite. The extra length of the 12" def makes it quieter though.

My bolt gun is 12" but that is a very different platform and ammo than the AR based rifles.
by Suputin221
Mon Dec 24, 2018 2:15 am
Forum: Main Discussion Area
Topic: Supersonic load on 4.5" barrel able to defeat IIIA body armor?
Replies: 49
Views: 9486

Re: Supersonic load on 4.5" barrel able to defeat IIIA body armor?

I can tell you that FMJ 150gr subsonic bullets will penetrate double thickness of level 2a kevlar. That is the projectile will easily pass through both sides of a 2a vest. I'm not sure how that would compare to a 3a but I suspect it would be a higher protection than 3a. The 2a vest I have is 21 laye...
by Suputin221
Sun Dec 23, 2018 8:05 pm
Forum: Main Discussion Area
Topic: Quietest 300 BLK Subsonic Round for Daniel Defense M4 ISR
Replies: 38
Views: 10857

Re: Quietest 300 BLK Subsonic Round for Daniel Defense M4 ISR

One problem ..... or not .... depending on how you view it is that your ears can lead you astray quite easily. Our ears can be fooled by both duration and frequency. Longer duration and higher frequency will both be perceived as being louder. I learned this early on when I was developing baffle desi...
by Suputin221
Sun Dec 16, 2018 9:13 pm
Forum: Hunting Discussion
Topic: Max Effective Range of Common 300 BLK Projectiles
Replies: 99
Views: 172982

Re: Max Effective Range of Common 300 BLK Projectiles

Thank you Dr.Phil for this info, and updates. Been a couple of years since I've done any reloading for the BO, or any reloading for that matter. Just got the set up at the new house, and have been working on a subsonic 130gn Speer Hot Core load with good success. I plan to work up a new hunting rou...
by Suputin221
Wed Nov 21, 2018 8:42 pm
Forum: Main Discussion Area
Topic: Quietest 300 BLK Subsonic Round for Daniel Defense M4 ISR
Replies: 38
Views: 10857

Re: Quietest 300 BLK Subsonic Round for Daniel Defense M4 ISR

I've been designing and building suppressors for a long time now. But even though I consider myself much more than a "hobbyist", I'm not sinking thousands of dollars into a db meter and microphones. I guess I would as a business expense that I could claim on my taxes if I were to get my manufacture...
by Suputin221
Wed Nov 21, 2018 8:30 pm
Forum: Main Discussion Area
Topic: Quietest 300 BLK Subsonic Round for Daniel Defense M4 ISR
Replies: 38
Views: 10857

Re: Quietest 300 BLK Subsonic Round for Daniel Defense M4 ISR

Test Data: https://www.pdfhost.net/index.php?Action=Download&File=555b4f53cb5bd9dad36efbbd37a37d83 Hope this link works. Notice how there is only a 4dB difference between suppressed and unsuppressed? Thats because the meter is reacting too slowly and missing much of the sound peak. FWIW I've metere...
by Suputin221
Wed Nov 21, 2018 8:09 pm
Forum: Main Discussion Area
Topic: Quietest 300 BLK Subsonic Round for Daniel Defense M4 ISR
Replies: 38
Views: 10857

Re: Quietest 300 BLK Subsonic Round for Daniel Defense M4 ISR

So my helper insisted that because she helped me build my bench ( handed me screws), she got to be in the picture! :lol: I am getting my chrono next week. I also bought a db meter, so there will be no guessing which is the quietest. Hopefully next weekend I'll get to do some testing. Unless you spe...
by Suputin221
Wed Nov 21, 2018 6:11 pm
Forum: Main Discussion Area
Topic: Shooting quiet, Sub-sonic bullet noise
Replies: 22
Views: 2987

Re: Shooting quiet, Sub-sonic bullet noise

Not to hijack the topic, but does anyone know what the most quiet gun and host has been to date? It would probably surprise many of you to find out. Hint: It's not the MP5SD. That honor goes to the 32acp Welrod, of all guns, was an improvised rudimentary design that hardly no one gives props to. So...
by Suputin221
Thu Jun 18, 2015 11:02 am
Forum: Bolt Actions
Topic: What Scope are you running on your bolt action 300blk?
Replies: 37
Views: 6064

Re: What Scope are you running on your bolt action 300blk?

Realistically 16x is overkill for a BLK. You'd be better off with a 3-9 at most.
by Suputin221
Tue Jun 16, 2015 3:57 pm
Forum: Bolt Actions
Topic: What Scope are you running on your bolt action 300blk?
Replies: 37
Views: 6064

Re: What Scope are you running on your bolt action 300blk?

I have a couple of scopes I use on my BLK bolt gun.

Started out with a Bushnell 3200 fixed 10x mil dot because I had it lying around. For a very inexpensive scope it is very good.

Then got a HiLux AK762 1-6x which is also excellent for the BLK and it's typically shorter range.