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inkslinger
05-13-2020, 05:21 PM
I’m interested in hearing what people are running for SD/HD. Are you using FMJ or JHP? My thought process is since a sub/PCC allows for more accuracy at larger ranges than a handgun, a FMJ would allow for better penetration. I’m kind of torn. If I saw it being used solely inside a dwelling, then I’m sure JHP would be the way to go. But, what about outside the home. I picked up a CZ Scorpion evo 3 Micro a while ago and I find it tagging along much more than my SBR. So far I’ve been keeping it filled with the Winchester 124gr p+. Am I completely off. Should I use the same HSTs as my pistols?

Joe in PNG
05-13-2020, 05:25 PM
I just run the same ammo in both- Lawman 147 for practice, HST 147 for defense.

GJM
05-13-2020, 05:34 PM
115 AE and 124 Lawman for practice, Gold Dot 124+P for carry.

inkslinger
05-13-2020, 07:04 PM
I just run the same ammo in both- Lawman 147 for practice, HST 147 for defense.


115 AE and 124 Lawman for practice, Gold Dot 124+P for carry.

Thanks for your replies. Do you think the JHP would have any reduction in efficiency at longer ranges? What are you running these rounds in? Barrel length? I should have tried to figure out how to make this a poll.

Joe in PNG
05-13-2020, 07:11 PM
Thanks for your replies. Do you think the JHP would have any reduction in efficiency at longer ranges? What are you running these rounds in? Barrel length? I should have tried to figure out how to make this a poll.

I'm using a CZ Scorpion Evo III, 7.5" bbl with brace.

Long range performance really isn't a consideration- an AR would be a better bet for that purpose.

GJM
05-13-2020, 07:12 PM
Thanks for your replies. Do you think the JHP would have any reduction in efficiency at longer ranges? What are you running these rounds in? Barrel length? I should have tried to figure out how to make this a poll.

If the trade-off is which load is better for 100 yards versus which load is better for a distance of muzzle to 25 yards, I would choose the load optimized for the closer distance, as that is how I envision my use of a PDW, and especially one in a pistol cartridge.

Default.mp3
05-13-2020, 07:17 PM
I’m interested in hearing what people are running for SD/HD. Are you using FMJ or JHP? My thought process is since a sub/PCC allows for more accuracy at larger ranges than a handgun, a FMJ would allow for better penetration.Penetration of what? FMJs typically have worse barrier-blind performance than modern bonded duty ammo. Hard cast is a different story, but FMJs ain't hard cast.

I use Speer Gold Dot G2 in my CZ Evo, because that's what my pistols have.

inkslinger
05-13-2020, 07:33 PM
Penetration of what? FMJs typically have worse barrier-blind performance than modern bonded duty ammo. Hard cast is a different story, but FMJs ain't hard cast.

I use Speer Gold Dot G2 in my CZ Evo, because that's what my pistols have.

I was just thinking that with the combination of velocity loss and expansion, it would reduce penetration. I’m totally on board with the idea of choosing a round that would be more effective at shorter distances. I just never seemed to have come across any discussions on FMJ vs JHP for sub guns. The ones I have seemed to lean towards FMJ for feeding reliability, but the was based more on full auto SMG’s.

GJM
05-13-2020, 07:44 PM
I was just thinking that with the combination of velocity loss and expansion, it would reduce penetration. I’m totally on board with the idea of choosing a round that would be more effective at shorter distances. I just never seemed to have come across any discussions on FMJ vs JHP for sub guns. The ones I have seemed to lean towards FMJ for feeding reliability, but the was based more on full auto SMG’s.

I would always go with reliability first, then bullet performance. If I did want to shoot a non JHP load, it would probably be Lehigh solids, which have a ball profile and should penetrate well.

inkslinger
05-13-2020, 07:56 PM
I would always go with reliability first, then bullet performance. If I did want to shoot a non JHP load, it would probably be Lehigh solids, which have a ball profile and should penetrate well.

Those seem interesting. Their description claims increased permanent wound cavity 2-4x ball. Thanks.

RevolverRob
05-13-2020, 08:08 PM
The Micro has a <8” barrel, right? Treat it like a big handgun. Load it with a quality HP that hits where your practice ammo hits.

At less than 12” you’re not likely to pick up enough steam to force 9mm bullets past their parameters. If you think you are - a quality bonded HP, a monolithic HP (Barnes), or something like the Hornady XTP might be the way to go. I’d have to check, but I think the 16” AR9 by the bed is loaded with Fiocchi’s loading of the XTP. That profile has no feed issues, shoots to the same spot 115-grain ball does, and I’m reasonably sure the XTP design won’t fragment when being pushed out to 1400fps.

inkslinger
05-13-2020, 08:14 PM
The Micro has a <8” barrel, right? Treat it like a big handgun. Load it with a quality HP that hits where your practice ammo hits.

At less than 12” you’re not likely to pick up enough steam to force 9mm bullets past their parameters. If you think you are - a quality bonded HP, a monolithic HP (Barnes), or something like the Hornady XTP might be the way to go. I’d have to check, but I think the 16” AR9 by the bed is loaded with Fiocchi’s loading of the XTP. That profile has no feed issues, shoots to the same spot 115-grain ball does, and I’m reasonably sure the XTP design won’t fragment when being pushed out to 1400fps.

Yes, 4” barrel. Thanks.

RevolverRob
05-13-2020, 08:16 PM
Yes, 4” barrel. Thanks.

With a 4” barrel, I’d choose the same thing I shoot in 4” service pistols, 147-grain HST.

inkslinger
05-13-2020, 08:20 PM
With a 4” barrel, I’d choose the same thing I shoot in 4” service pistols, 147-grain HST.

Thanks. It looks like I have some magazines to reload...