lower concussion load load for 8 inch barrel?

[45r]

Anybody download their handloads to get less noise and concussion.
My 8.3 hanson barrel is not much fun even with KVP linear comp using 110 V-max over 20.4 grains H-110.
Thinking maybe using Viht N-110 around 16 grains to lower concussion.
Any pet loads out there for.

[certifiable]

Anybody download their handloads to get less noise and concussion.
My 8.3 hanson barrel is not much fun even with KVP linear comp using 110 V-max over 20.4 grains H-110.
Thinking maybe using Viht N-110 around 16 grains to lower concussion.
Any pet loads out there for.

Might be some in the pet loads section, possibly under "Supers ... all other powders"

[45r]

Have to find something that has lower muzzle pressure.
Might just sell the barrel and get a thicker 9 inch barrel.
My hanson is accurate but has first round off a few inches from group anyways.
Maybe the Mr blond barrel.

[dellet]

Noise and force are different. The only thing that will reduce both that I know of is a suppressor.

Here's a video of a nice brake on a 10" 308 AR pistol, but it's too damn loud to shoot.

https://www.youtube.com/watch?v=wmHXwliWCoU

Jim Timber who posts here by that name, makes the "Simple Threaded Device". Not much of a brake, but it drives all the noise and flash forward, giving less noise and concussion to the shooter. It works well on a short barrel. I use one when checking stability for subs and it does help.
Might still have some night shot videos up here
https://www.facebook.com/SimpleThreadedDevices

Couple of reviews
https://shortbarrelshepherd.com/simple- ... nt-review/

http://www.alloutdoor.com/2016/11/08/re ... zle-brake/


You also might consider an adjustable gas block. There is a ton of port noise with supers. Cutting down on the volume of gas as well as the pressure helps a lot.

Short barrels are just plain loud.

[Blowout]

The load your using is over max at 20.4gr.

Hodgdon load data shows 18.4 - 19.4gr H110 for 110gr Vmax
http://www.hodgdonreloading.com/data/rifle

I have loaded and tested 110gr carbine bullets with 12gr to 21gr W296 out of a 8.5" KAK barrel and know 20 - 21g is a very hot load for a pistol. I noticed the bolt carrier was getting beat up against the buffer with these hotter loads as well.

Try dropping the charge to 18.4gr and see how it works for you.

Shouldn't drop the loads under minimum with W296/H110 because of a chance of flash over increasing chamber pressures. I was doing limited testing with those lower charges.

[45r]

There has been published data showing 20.3 grains H-110 with the 110 v-max.
Hodgdon load data has gotten pretty conservative lately.
I seat to a longer COL also.
After reading your results with the KAK barrel I looked at them and they look to have a .125 port.
Might be why it's beating up your bolt and buffer with hot loads.
Going to get the BA 9 inch performance barrel and maybe sell the 8.3 Hanson.
It is very accurate but has a first round issue with subs suppressed and now seeing how well it will do with supers unsuppressed.
The hanson has a small port(around .096) and was ejecting at around four thirty even with the max load and a linear comp.
I've got some rounds loaded with 16.1 grains Viht N-110 to try next.
Then some with 15.2 grains alliant 2400 since nosler data shows it to be the most accurate with their 110 varmagedon.
I'm thinking they might have less felt concussion since they are faster powders.

[dellet]

How are you defining “concussion”?

I think I might have a different one.

[45r]

Concussion to me means the shock wave that I feel using the short barrel without a suppressor.
My muzzle devise is actually the TLC not the KAK but they're simular.
The BRT is maybe a little better I've read but the TLC only cost 20 bucks.
I'll probably use my can from now on since they don't seem to work very well.
I used it for an excuse to get a 9 inch barrel.

[dellet]

In a nutshell, less muzzle pressure will have less felt recoil, force. Much of what is felt is the pressure release of the expanding gasses in the barrel. This release pushes the bullet forward and the barrel back. Sometimes referred to as the rocket or jet effect. Bullet, gas and rifle weight all play a role.

Add weight to the rifle, less transfer to the shoulder. Lessen the muzzle pressure, there is less to push with.

Less or faster powder will generally mean less muzzle pressure. So using a faster powder will reduce recoil. Part of that is just using less powder in the first place, part is having less, lighter gas exiting the barrel with less force.

Moving to a 9” barrel will help. I found the difference between a 7” and a 7 1/2” intolerable, actually went to an 8”. This was mostly due to noise, but recoil was also noticeable even suppressed.