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Thread: .277 Wolverine for Varmit Gun
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9 June 2017, 06:43 #76
277 Wolverine 150gr subsonic. 12.5in barrel. AAC 762-SDN-6 suppressor.
https://youtu.be/z32A2uwoIA4
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9 June 2017, 14:48 #77
Sounds good from a 12.5" Barrel.
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9 June 2017, 15:14 #78
Here is a bit of data for CFE BLK. All rounds fired from 1X7 twist 12.5in barrel 10ft from chrono. Five rounds of each fired for data.
Mixed headstamp brass. S&B small rifle primer.
150gr Federal Fusion. 9.8gr CFE BLK
1041.8 fps average
38.91 standard deviation
1084 hi
1000 lo
90gr Speer TNT. 23.3 gr CFE BLK
2347.2 average
41.23 standard deviation
2413 hi
2311 lo
110gr Sierra Pro Hunter. 21.7gr CFE BLK
2149.0 average
36.38 standard deviation
2205 hi
2104 lo
Primers look good in all cases but use this data at your own risk!
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9 June 2017, 20:36 #79
150gr round at 1050 fps = 367ft lbs
Round is equal to a 9mm. Gutless at that velocity.
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9 June 2017, 21:53 #80
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10 June 2017, 00:01 #81
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10 June 2017, 03:30 #82
That's what I'm doing. Just screwing around. Playing with something a little different.
For a dedicated suppressed gun and/or something that's to be used exclusively with subsonic I would think the 300 Blackout is the better choice. There are any number of 180-240 grain choices for bullets. The down side is these bullets are generally pretty darned expensive and, depending on which bullet you choose, rarely on sale. For comparison I just bought 1,500 pulled .277cal 150 grain round nose for nine cents each. Combined with less than 10gr of gunpowder that's some cheap shooting right there!
Anyway, the 277's best use is probably with supersonic ammo. A 90gr Speer Gold Dot or Nosler bonded cruising along at around 2,400 fps from a 12" barrel ain't too shabby.
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27 June 2017, 14:10 #83
A new article in Handloader Magazine by Richard Mann. The article starts on page thirty-two.
https://issuu.com/magaread39/docs/ha...september_2017
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5 August 2017, 08:27 #84
Mad Dog Weapons has convinced Starline to make properly headstamped 277WLV brass. If the info on the MDWS forum is correct this brass should be available in three or four months. It should be 30-40 cents per case.
Also, MDWS was able to convince Speer to sell the 90gr Gold Dot to JB's Firearms for use in commercially loaded ammo. Hopefully this will eventually lead to new (not pulldown) Gold Dot for the general public.
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1 October 2017, 15:55 #85
Here's a bit of an update.
I took the Wolverine to the 200 yard range this morning and put it on paper after getting it dialed in good at 100 yards.
With 23.2gr of CFE BLK and a 90gr TNT I'm printing about an inch and a half high at 100. My thinking here is that should put me more or less dead on at 200 and about 12in low at 300. That's my hope anyway.
So here is my 200 yard target with the 90gr load. This is two different groups of three rounds each. I fired the first three then walked down to check the target. I then fired another three rounds for a total of six.
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28 October 2017, 04:16 #86
Mark Kexel on ar15podcast:
https://youtu.be/FYuMvIujCtg
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