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Posted: 1/9/2016 12:56:22 AM EDT
Swift 75 Grain Scirocco II
The Swift 75 grain Scirocco II is a heavy .22 caliber (0.224”) polymer-tipped, bonded bullet with a ballistic coefficient of 0.419. What else could you ask for in a “blind to barriers” projectile? Oh, and did I mention that it’s accurate too? The 10-shot group pictured below was fired off the bench from one of my Krieger barreled AR-15s (1:7.7” twist) at a distance of 100 yards. The group has an extreme spread of 0.87”. (The rounds were loaded to magazine length and fired from the magazine.) 
The 75 grain Scirocco II is the longest .22 caliber bullet in production that I’m aware of that can be properly loaded to magazine length in standard 5.56mm/223 Remington AR-15 magazines. 
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Posted: 1/9/2016 1:05:36 AM EDT
[#1]
Welcome back Molon.
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Posted: 1/9/2016 1:17:09 AM EDT
[#2]
Quote HistoryQuoted: Welcome back Molon.   |
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Posted: 1/9/2016 1:37:06 AM EDT
[#3]
Quote HistoryQuoted:
Quote HistoryQuoted:
Quoted:
Welcome back Molon. +1 |
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Posted: 1/9/2016 3:55:17 AM EDT
[#4]
Thats a lot of bearing surface
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Posted: 1/9/2016 4:28:59 AM EDT
[#5]
Quote HistoryQuoted:
Welcome back Molon. This! Saw your post earlier about the 124 grain HST. Glad to see you posting again. |
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Posted: 1/9/2016 6:33:20 AM EDT
[#6]
Quote HistoryQuoted:
Welcome back Molon. Indeed! |
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Posted: 1/9/2016 2:02:13 PM EDT
[#7]
Quote HistoryQuoted: Welcome back Molon. |
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Posted: 1/9/2016 4:50:08 PM EDT
[#8]
Nice report as usual.
I doubt the BC is as claimed though. The boat tail is way too short. Litz did an analysis on the 6.5mm 130gr Swift Scirocco, and it is way less than advertised due to the short and inefficient boat tail. I'm guessing it's more in the high .3's for G1 model. If they lengthened the boat tail, it could get to the advertised BC I think. |
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Posted: 1/15/2016 4:27:36 PM EDT
[#9]
Quote HistoryQuoted:
Thats a lot of bearing surface Indeed. 
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Posted: 2/27/2016 11:57:44 PM EDT
[#10]
.
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Posted: 2/28/2016 2:18:48 AM EDT
[#11]
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Posted: 4/8/2016 3:43:36 PM EDT
[#12]
.
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Posted: 4/8/2016 5:44:06 PM EDT
[#13]
how does that stack up to the Sierra 77 TMK in accuracy? also isn't the TMK suppose to be barrier blind also?
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Posted: 4/8/2016 6:59:10 PM EDT
[#14]
Quote HistoryQuoted:
how does that stack up to the Sierra 77 TMK in accuracy? also isn't the TMK suppose to be barrier blind also? I do not believe so, looking at some gel shots the neck starts very quickly and seems to fragment quite a bit. Also seems to have a piece about half of the original weight penetrate deeper then the rest of the fragments. |
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Posted: 4/8/2016 8:23:37 PM EDT
[#15]
Quote HistoryQuoted:
how does that stack up to the Sierra 77 TMK in accuracy? also isn't the TMK suppose to be barrier blind also? The Sierra 77gr Tipped Match King is not a bonded bullet like the Swift. I am surprised that nobody like Blackhills or even smaller companies like Underwood doesn't load up these Swifts and market them to the tactical crowd. Is there any gel data of these to be found on the Internet? Blue Falcoln shot these yet into gel? |
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Posted: 4/8/2016 11:02:58 PM EDT
[#16]
I keep expecting to see some targets in this thread....
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