[OVERKILL]

I'm wondering how quiet the 40 S&W and 45 Auto carbines can be with handloads and still cycle? Not with a suppressor but with reduced "mouse fart" loads. I'd love to know before I pick one up. When I do see a Hi-Point they're all in 9mm.

 

[greg_r]

Don’t know. All the Hi Point carbines I have experience with are the 995 and 3895. The 3895 is pretty quiet, at least as far as carbines go, and it functions just fine. But again, I am using full power ammunition in it as well.

I do doubt though that they would function with reduced loads. Most blowback firearms like full,power ammunition.

 

[OVERKILL]

Maybe I shouldn't have said mouse fart loads, more like standard loads reduced 10-15%. The 45 should be pretty quiet if I can ever find one. It runs about the same velocity and pressure as the 380 with a bigger bore to burn more gases.

 

[moona11]

No idea. I reload but dont do reduce loads.

 

[engine2]

3 years ago I loaded up 300 Bunny Fart .45's with 4.4gr of 231. Still have 200 of them. They work in the light spring 1911's. In the 4595TS not so good, about a 10% fail. Not much quieter either.

 

[RACHGIER]

I've loaded from light to "look out" for my 4095. There may have been a measurable difference in the decibel level of the report when using a meter, but my ears only ever registered a normal strength bang.

Perhaps minimal loads and a blast forwarder might help? The forwarder will allow you to go with even lower pressure rounds due to the increased backpressure and redirecting the muzzle blast away from you.

 

[undeRGRound]

I now have all the stuff to do this, hence the
Zombie Resurrection

🧟

 

[histed]

I now have all the stuff to do this, hence the
Zombie Resurrection

🧟

My advice is - DON'T, Mole. At best you'll have unreliable loads that MAY work SOMETIMES. We both know that means that, when you need it most, it'll fail. At worst, you get a squib load that sticks one in the barrel and you end up eating your bolt. Seen both happen, though not with HP carbines. Jist sayin'

 

[OVERKILL]

If they're that weak, the bolt won't give. That happens when you have powder bridging with a weak one followed by a full power, or the one that got the extra that didn't drop in the weak one.

 

[undeRGRound]

My advice is - DON'T, Mole. At best you'll have unreliable loads that MAY work SOMETIMES. We both know that means that, when you need it most, it'll fail. At worst, you get a squib load that sticks one in the barrel and you end up eating your bolt. Seen both happen, though not with HP carbines. Jist sayin'

I'm not looking to experiment, just build some nice, normal 45 subs. Sonny-Boi has a very elaborate suppressor which should work well with a normally specced 45 subsonic.
IMO testing calls for checking the barrel after each shot on something like this, a squib might not sound like a squib when testing subs?

Here's the suppression device... on his old K-V
View attachment 75296

View attachment 75299

 

[FlashBang]

I'm not looking to experiment, just build some nice, normal 45 subs. Sonny-Boi has a very elaborate suppressor which should work well with a normally specced 45 subsonic.
IMO testing calls for checking the barrel after each shot on something like this, a squib might not sound like a squib when testing subs?

Here's the suppression device... on his old K-V View attachment 75296

Standard 45 rounds are subsonic. Why load even lighter?

 

[moona11]

Standard 45 rounds are subsonic. Why load even lighter?

Because he knows nothing about reloading.

 

[undeRGRound]

Standard 45 rounds are subsonic. Why load even lighter?

I want the capability to reload to something like the Freedom Munitions "quiet" 45 acp. I believe these are in the 800fps range.
Wouldn't the 800s be more quiet than a 950 or 1050 round?
I know the hollyweird silencer is pretty much BS, but there is still a lot left on the table.

School me, Flash


PS: 45 HAP was all I could get for boolits, lately. 230gr hollow points

 

[histed]

I have no idea what .45 clocks out of a HP carbine. Standard loads in a pistol USUALLY average between 800 and 950 fps. At that speed you're still in good shape for a "silencer", IIRC. Flash is right, no real need to go lighter. And, yeah, a squib doesn't always sound like a squib. I know you're new to the reloading game, so play it safe and stick with BOOK POSTED data at around 850 fps. Moles look funny eating a bolt.

 

[undeRGRound]

I have no idea what .45 clocks out of a HP carbine. Standard loads in a pistol USUALLY average between 800 and 950 fps. At that speed you're still in good shape for a "silencer", IIRC. Flash is right, no real need to go lighter. And, yeah, a squib doesn't always sound like a squib. I know you're new to the reloading game, so play it safe and stick with BOOK POSTED data at around 850 fps. Moles look funny eating a bolt.

850fps, that covers "the 800 range" for me!

My research indicates that the added barrel will add velocity but reduce noise at the same time. I'd expect that load would still be under 1000fps even with a long barrel. 17.5" for 4595, correct?

 

[histed]

850fps, that covers "the 800 range" for me!

My research indicates that the added barrel will add velocity but reduce noise at the same time. I'd expect that load would still be under 1000fps even with a long barrel. 17.5" for 4595, correct?

That's my understanding. I could be wrong. I often am. I can't remember what the velocity increase per inch is supposed to be - frankly, I'm too tired to look right now - but you SHOULD still be under 1000 and subsonic

 

[RACHGIER]

That's my understanding. I could be wrong. I often am. I can't remember what the velocity increase per inch is supposed to be - frankly, I'm too tire to look right now - but you SHOULD still be under 1000 and subsonic

Meh. About 925-ish for a normal pressure 230gr JHP from an 18" barrel.

 

[histed]

Meh. About 925-ish for a normal pressure 230gr JHP from an 18" barrel.

Thanks. I wasn't sure, but that sounds right

 

[Rerun]

I'm not looking to experiment, just build some nice, normal 45 subs. Sonny-Boi has a very elaborate suppressor which should work well with a normally specced 45 subsonic.
IMO testing calls for checking the barrel after each shot on something like this, a squib might not sound like a squib when testing subs?

Here's the suppression device... on his old K-V View attachment 75296

I lack permission to view your link.

eldar

 

[RACHGIER]

I lack permission to view your link.

eldar

It's not you, the attachment process got fouled up. Could just be the system isn't liking the picture.