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Posted: 3/9/2017 5:06:39 AM EDT
[#1]
I can't argue with any of that.
Good rant! |
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Posted: 3/9/2017 5:18:09 AM EDT
[#2]
OP needs to take a serious look at 22TCM.
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Posted: 3/9/2017 5:34:32 AM EDT
[#3]
Only issue I see is first statement.. NO.
They are.. In general. The same energy. Depending ? Looks like a 30-50 ft/lb spread which is about 10-25% and a + toward .22mag. Would need to know and take into account barrel length vs velocity. My guess is 5.7 performs better in a shorter barrel..? Which would bring them even closer. However... The BC on 5.7 is much better. The sectional density gives it much better penetration. Most .22mag has a more rounded shape although one of the FMJ's might get close to the same BC. I only compared a couple loads in 40 gn. And they were round nose 22mag |
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Posted: 3/9/2017 5:38:19 AM EDT
[#4]
Actually .22 rimfire mag ammo is more expensive than 9mm. .22 mag is usually around $.25rd. 9mm is $.15 - .20rd now.
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Posted: 3/9/2017 6:16:05 AM EDT
[#5]
There's no real practical need for 22 mag or 5.7mm. The ammo is expensive and hard to find. But if you want to get it just for fun, then go for it. Otherwise stick to more practical calibers like .22lr or 9mm or 5.56mm. I thought the 5.7mm pistol was pretty cool since it could defeat body armor, but I have no real need for that. It's more of a range toy.
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Posted: 3/9/2017 9:43:26 AM EDT
[#6]
5.7 is around the cost of .45 ACP right now, from Palmetto State Armory. $15-17/50, but your LGS may charge upwards of $26/box. I can't find .22 Mag anymore for cheaper than $12/box.
Velocity and Energy wise, from a pistol, you'll get around 1400 fps from a 40gr 22 mag. You can easily get 1750 from SS197SR in 5.7. 19-2000 is possible with reloading. Different strokes for different folks.. |
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Posted: 3/9/2017 11:58:14 AM EDT
[#7]
For a range toy or varminter 22 Mag all the way. Ammo is plentiful again and relatively cheap. As far as 5.7, there are more exotic loads for selfdefense including some that will defeat low level body armor. Price right now is 30-40cpr depending on offers and load of choice. Greentips are more money though.
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Posted: 3/10/2017 3:37:07 PM EDT
[#8]
7.62x25
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Posted: 3/10/2017 3:56:23 PM EDT
[#9]
Quote HistoryQuoted:
7.62x25 Need a full sized Glock in that cal. Something like 16 round capacity. |
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Posted: 3/10/2017 5:08:32 PM EDT
[#10]
Quote HistoryQuoted:
Need a full sized Glock in that cal. Something like 16 round capacity. Quote HistoryQuoted:
<strong>Quoted:</strong>
7.62x25 Need a full sized Glock in that cal. Something like 16 round capacity. I have wished that for years. I saw that there has been some success in converting .22 tcm pistols to use 7.62x25 (new barrel is required obviously), which nets you a high capacity 7.62x25 pistol but to get reliable feeding you would also have to do custom slightly shorter than normal loads. |
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Posted: 3/13/2017 3:56:17 PM EDT
[#11]
I think if you were going out for good hike, 200 rds of 22mag would be lighter that 5.7. You would get close to the same performance and could carry more ammo with 22mag. I did not weigh them, but that is my guess.
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Posted: 3/14/2017 8:41:36 AM EDT
[#12]
Quote HistoryQuoted:
There's no real practical need for 22 mag or 5.7mm. some people can shoot it comfortably and get hits, vs misses from bigger calibers that's sounds "practical" AFA OP statement, 22mag has more feeding problems and mag limits, where the 5.7 doesnt |
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Posted: 3/14/2017 10:03:16 AM EDT
[#13]
Quote HistoryQuoted:
There's no real practical need for 22 mag or 5.7mm. The ammo is expensive and hard to find. But if you want to get it just for fun, then go for it. Otherwise stick to more practical calibers like .22lr or 9mm or 5.56mm. I thought the 5.7mm pistol was pretty cool since it could defeat body armor, but I have no real need for that. It's more of a range toy. 5.7mm exists because NATO put out a call for a PDW. The requirements were for it to be smaller and lighter than 5.56mm weapons and that the round be more effective than 9mm FMJ while still being able to penetrate Russian CRISAT (titanium + kevlar) body armor at 200m |
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Posted: 3/20/2017 5:05:16 PM EDT
[#14]
With the current costs of 5.7, I regret selling my PS90. In 2013 I gave up trying to find ammo for it, much less at a reasonable price.
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Posted: 4/6/2017 2:16:28 AM EDT
[#15]
As far as performance of the 5.7x28 vs .22 mag goes, remember that the "same performance" being quoted is the FN FiveseveN 4.77" barrel vs a .22 mag rifle with a 22" barrel. Put the 5.7x28 in the 16" barrel of the PS90 or an AR57 upper and you now have just a tad more performance.
 Think of it as more of a .22 K Hornet. Reloading the 5.7x28 is not for beginners. Even .1 grain increase in powder can make what was a safe load rupture brass and pop primers. I use my Lyman #55 to charge my 5.7 reloads and I still check every 10th round to ensure it hasn't slipped off. It never has, but still, we are talking about $2000 guns plus my hands and face here. lol
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Posted: 4/6/2017 6:03:16 AM EDT
[#16]
My understanding is that the .22 s/lr/mag are old technology and still use black powder. Very dirty in a weapon, esp. a semi-auto. Heard that those with the PMC30 have to clean the weapon after every mag (30 rounds), that is if they can make it that far!
The 5.7 uses a fine nitrocellulose ball powder and a primer in a cup. |
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Posted: 4/6/2017 9:37:37 AM EDT
[#17]
Quote HistoryQuoted: My understanding is that the .22 s/lr/mag are old technology and still use black powder. Very dirty in a weapon, esp. a semi-auto. Heard that those with the PMC30 have to clean the weapon after every mag (30 rounds), that is if they can make it that far!
The 5.7 uses a fine nitrocellulose ball powder and a primer in a cup.  Welcome to the 21st century, Wolfgang. The .22" S/L/LR haven't used black powder since the 1920's. The .22" WMR has never used black powder. So your information is only off by 100 years.
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Posted: 4/6/2017 10:34:13 AM EDT
[#18]
I enjoy my PMR-30 .22wmr pistol, but other than VERY hard to find SD ammo most of it is designed to run in long barrels, which does make awesome and noisey fireballs. Wouldn't mind picking up an inexpensive .22wmr long barrel revolver like the Charter Arms Target pathfinder as a range plinker. Not many handgun options in .22wmr. since it's a rimmed cartridge.
5.7 is a better performer in a short barrel. I've not had much personal time with it, but if the AR57 uppers were still available I'd try one. I've had an FNX-45 for years I really like and wouldn't mind trying an FN in 5.7. Anyone else besides FN & AE making 5.7? |
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