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30 Super Carry P365

7715 Views 46 Replies 24 Participants Last post by  srb10864
Since the 30 Super Carry has similar power to 9mm, I wonder if Sig Sauer could make a 30 Super Carry barrel and magazine that would work with the 9mm pistol. I would buy that conversion kit just to try out 30 Super Carry. I'm pretty sure 9mm would remain my primary caliber, but it would be interesting to try 30 Super Carry for the cost of a barrel and magazine.
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Pretty sure the breechface and extractor would need to be different too due to the smaller case diameter. So you would need to replace the whole upper portion of the gun. The recoil spring from the 9mm would probably work but I would want to replace that too in case it needs to be tweaked for optimum reliability.

But since the serial number is on the FCU you could at least buy all of that without going through a FFL even though it would be more expensive than just a barrel and magazine. And if you are married to someone who mistakenly believes you have enough guns you could point out that legally you didn't buy a new one, just modified an existing one.
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I'm going to assume that Sig will make a 30sc version of their 365, 365x, 365xl. A 15+1 Sig 365X would sell just as well as the Sig 365 380cal. Why would any of the other big gun manufacturers sit this one out when S&W makes a Shield+ 30sc? Does anybody believe only S&W was able to convert their 9mm Shield plus into their 30sc Shield plus, but with an additional 3 rounds of 30sc?
The jury is out (in my mind) on the new caliber; just too much invested in mags, guns and loading equipment. But that's me.
But I agree, for the OP, that you won't be able to dip your toe in the pond...it won't be possible to change calibers without changing out the whole top of the pistol.
Moon
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I'm going to assume that Sig will make a 30sc version of their 365, 365x, 365xl. A 15+1 Sig 365X would sell just as well as the Sig 365 380cal. Why would any of the other big gun manufacturers sit this one out when S&W makes a Shield+ 30sc? Does anybody believe only S&W was able to convert their 9mm Shield plus into their 30sc Shield plus, but with an additional 3 rounds of 30sc?
1) The others are “sitting it out” because most new calibers fail.
2) Of course any of them could offer it…but they are waiting to see if it sells, which most likely it does not.
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My money is Sig is going to ignore SC. They bailed on Sig 357, and 40. No need to poison the 9mm waters.
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Unless you have severe arthritis, a waste of money. One would be better served by going with lighter bullet weight loadings (100, 95, or 90-gr.) in the 9x19mm - or a .380.
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1) The others are “sitting it out” because most new calibers fail.
2) Of course any of them could offer it…but they are waiting to see if it sells, which most likely it does not.
Sig makes a wide variety of firearms, some of which are niche guns that only appeal to a small group of shooters. But they only make pistols in 22, 380, 9mm, 45 and 10mm. A lot of the variety comes from putting the same upper and FCU in a different polymer. And polymer frames are cheap compared to tooling up to make new metal parts. So while I would buy a P365 in 30 SC I am not going to hold my breath waiting for it. If Sig doesn't make a gun in their namesake 357 Sig the odds of their making one in 30 SC is pretty low.

But I do think there is a chance they will. The micro 9 market has a lot more competition than when the 365 was the only choice. People buy these guns because they offer a lot of capacity in a small package. The only reason I switched from my Glock 43 to a 365 was capacity. Capacity is big competitive advantage in this market. And this market is very important to Sig since the P365 line makes up a big part of their sales. Going from 6/7 in a single stack 9mm to 10 is a bigger jump than going from 10 to 12 but it is more. I don't think the 30 will be quite as effective as 9mm but will be close enough that I would rather have 20% more capacity in 30 SC in my carry gun.

While I still see a lot of comments about how the 30 SC is for people that cannot handle 9mm recoil everyone that has actually shot one comments that the shooting experience is indistinguishable from 9mm. Same recoil, a bit sharper report but very hard to tell the two cartridges apart by shooting them. So I could do the bulk of my range shooting with an a 9mm gun the same make and model as my 30 SC carry gun which would mitigate the cost of 30 SC ammo.

If I only owned one gun it wouldn't be chambered in 30 SC. But as long as I have room for it in my safe there will be a place for 365 in 30 SC if Sig chooses to make one.
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Sig makes a wide variety of firearms, some of which are niche guns that only appeal to a small group of shooters. But they only make pistols in 22, 380, 9mm, 45 and 10mm. A lot of the variety comes from putting the same upper and FCU in a different polymer. And polymer frames are cheap compared to tooling up to make new metal parts. So while I would buy a P365 in 30 SC I am not going to hold my breath waiting for it. If Sig doesn't make a gun in their namesake 357 Sig the odds of their making one in 30 SC is pretty low.

But I do think there is a chance they will. The micro 9 market has a lot more competition than when the 365 was the only choice. People buy these guns because they offer a lot of capacity in a small package. The only reason I switched from my Glock 43 to a 365 was capacity. Capacity is big competitive advantage in this market. And this market is very important to Sig since the P365 line makes up a big part of their sales. Going from 6/7 in a single stack 9mm to 10 is a bigger jump than going from 10 to 12 but it is more. I don't think the 30 will be quite as effective as 9mm but will be close enough that I would rather have 20% more capacity in 30 SC in my carry gun.

While I still see a lot of comments about how the 30 SC is for people that cannot handle 9mm recoil everyone that has actually shot one comments that the shooting experience is indistinguishable from 9mm. Same recoil, a bit sharper report but very hard to tell the two cartridges apart by shooting them. So I could do the bulk of my range shooting with an a 9mm gun the same make and model as my 30 SC carry gun which would mitigate the cost of 30 SC ammo.

If I only owned one gun it wouldn't be chambered in 30 SC. But as long as I have room for it in my safe there will be a place for 365 in 30 SC if Sig chooses to make one.
Some great points. The hard core enthusiasts would definitely buy weapons in 30SC. How far it goes beyond that, I don’t know. I promised myself I wouldn’t chase “boutique” calibers anymore after going so far into .357 Sig and on the rifle side, .308 Marlin Express, so I’ll wait and see how this one settles out.
As to the round itself, I do think I would rather have the better ballistics of the 9mm over the increased capacity, but there are good arguments for both. If the recoil was significantly less, making the pistol more shootable, than it would be more appealing, but that seems to not be the case.
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The 30 SC is interesting if nothing else, and should the P365 adopt it I'll likely try it out. It would be the only platform that I'd be interested in. But frankly, the real world chronograph numbers I've seen were not that impressive. The Remington 100 gr. defensive load running under 1200 fps from the longish barreled Shield EZ for example. My wife's P365 380 isn't far behind that, with my handloads running 90 gr Gold Dot or the XTP right there at 1180 fps. And the Magguts internals for the 365 9mm working perfectly in the 380 mags, making it 12 + 1.

Still... I'd spring for a top end in 30 SC should it ever hit the market. Because I like to party..
You know, there was a time when most thought the 9mm was inadequate as a defensive cartridge. Now people are asking for a cartridge that is inferior to a 9mm, go figure.
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The 30 SC is interesting if nothing else, and should the P365 adopt it I'll likely try it out. It would be the only platform that I'd be interested in. But frankly, the real world chronograph numbers I've seen were not that impressive. The Remington 100 gr. defensive load running under 1200 fps from the longish barreled Shield EZ for example. My wife's P365 380 isn't far behind that, with my handloads running 90 gr Gold Dot or the XTP right there at 1180 fps. And the Magguts internals for the 365 9mm working perfectly in the 380 mags, making it 12 + 1.

Still... I'd spring for a top end in 30 SC should it ever hit the market. Because I like to party..
I have a few of the MagGuts, but never really thought about it for the 380 version. Without me disassembling one, how are they fitting in the 380 magazine when Sig has that plastic piece in there to make it more narrow?

As for a potential 30sc 365, I'd definitely buy one to add to my 365's in 9mm and 380. I bought the S&W Shield Plus in 30sc as soon as it arrived in the gun store. Loaded with 16+1 rounds of 30sc HST's, I view it as a pretty formidable self defense gun. I already had the 9mm Shield Plus, and the 30sc HST's penetrate and expand no differently than the 9mm HST's I've been carrying for many years now. 30sc HST's blow away the 380 when it comes to penetration and energy, and so far appear equal to the 9mm's. My 30sc Shield Plus has less recoil than my 9mm Shield Plus, so I don't understand why people on youtube videos claim recoil between the 30sc and 9mm is the same. It's not.

Current gun owners seem to be skeptical, but new gun buyers would probably take the gun with 3 more rounds of capacity, especially if the guns are exactly the same size. I'm assuming if S&W could add 3, then Sig, Glock and the rest could figure it out as well.

16+1 or 13+1 Shield Plus
13+1 or 10+1 43X
15+1 or 12+1 365X or XL
18+1 or 15+1 Hellcat
etc
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As Paul Harrelll stated in his video...
30SC may be the next Betamax type product.
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As I’ve said before, the 365 is a logical platform for the .30SC but I would love it in 320. Would buy the components to add yet another caliber option to my 320.
Whether we're talking .380 ACP, 9mm Parabellum or .357 SIG, the 9mm bullet ain't broke, so don't fix it.
357 Sig is a pretty impressive round but it's being abandoned.. why? More than likely cost.

30SC is listed at academy for $1.25 per round of FMJ. Hollow points are $1.50 which isn't quite as much of a disparity for slightly over $1 per round 9mm JHP.. but when we're talking about FMJ being 3 times the cost of a 9mm round I can't say I'm surprised at any manufacturer staying away from it.
357 Sig is a pretty impressive round but it's being abandoned.. why? More than likely cost.

30SC is listed at academy for $1.25 per round of FMJ.
TargetSports has Federal FMJ 30 SC for $.48/round, about the same as 38 Special or any other caliber except 9mm. There have always been people that choose 45 ACP, 40 S&W, 380, 38 Special or 10mm despite it being as expensive or more expensive than 30 SC.

Ever shoot a 357 Sig? Its similar to shooting a 40 S&W in terms of recoil but with more muzzle blast. It is becoming less popular for the same reasons 40 S&W is. With 9mm you get a gun that is more pleasant to shoot but can carry a couple more rounds than a 40 and is still powerful enough to be effective. Its not going to be nearly as popular as 9mm but there are enough people that think more expensive ammo is worth extra capacity that it will probably survive. I haven't heard anyone that has shot one say 30 SC is more pleasant to shoot though. Indistinguishable from 9mm seems to be the consensus. The muzzle blast is sharper but when wearing ear protection is not objectionable.
The .30SC is a GREAT idea.
All the gun manufacturers should make guns for it.
All the ammo manufacturers should make ammo for it.
You guys should all buy it.

Me? I'm only marginally interested. When I was a kid, I collected cartridges--MANY different and obscure calibers. When I became old enough, I wanted a gun in all those calibers. I'd buy a gun, I'd buy dies, I'd buy components, I'd buy holsters, and life was good. As I got older, I decided that all these different calibers were a burden to manage, and started to embrace simplification. Right now, I without a compelling reason, I don't want a new caliber. If I was a younger guy in my "acquisition stage," I'd be all over it.
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I'd buy a P365 in a metal frame, hammer fired, .38 Super, if it had a manual safety and a bayonet. A compass 🧭 in the grip so you'd know what direction you are pointing too.
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