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7MM Berger Bullet Groups

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Unread 10-30-2007, 12:15 PM
Bronze Member
Join Date: Oct 2007
Posts: 65
Sendero Man - what velocity are you getting with your 168's and 71 grains of retumbo out of your 7 rm?
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Unread 10-30-2007, 12:33 PM
Bronze Member
Join Date: Oct 2007
Posts: 65
NZ Longranger - What kind of neck tension would you suggest?
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Unread 10-30-2007, 08:46 PM
Gold Member
Join Date: Dec 2001
Location: Southwest Desert
Posts: 848
NZ Longranger,
What cartridge are you using to achieve 3400 fps with the 180 VLD and what is the length of the barrel?
Wayne aka WAMBO
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Unread 10-31-2007, 04:00 AM
Silver Member
Join Date: Sep 2005
Location: Oahu, Hawaii
Posts: 199
Wambo I believe its his 7mm Fatso but I could be wrong sounds like an awesome round.

Happy Hunting and Good Shooting!

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Unread 10-31-2007, 08:18 PM
Bronze Member
Join Date: Jul 2007
Location: Northern Utah
Posts: 83
Adjusted my seating depth to 0.010 and 0.015 inches into the lands and shot a 3 shot group with each using the 168 VLD's. At 300 yards, I got a 7 inch and a 9+ inch group --- fairly consistent for what I was shooting when placing the SD off the lands originally, ie 2-3 MOA. Just for the heck of it, I cleaned my barrel and shot the 140 accubonds after the above and shot under 1/2 MOA.
At this time, have to think that some barrels just do not shoot some bullets and I'm stuck with low BC bullets.
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Unread 11-06-2007, 07:51 PM
Silver Member
Join Date: Jun 2007
Location: Hawkes Bay New Zealand
Posts: 225
Sorry guys, been away hunting, didn't find your queries till now.
Its the 7mm/404 imp that pushes the 180gn Berger moly at 3400fps out of a 30" plus barrel, using RWS brass. Kirby's 7mmAM has more capacity and will easily beat it in the Lapua brass.
The Fatso is a WSM length 7mm/338 Lapua and is more like the 7mm STW ballistically, but does it in a short action.
I'll run a sizing button 4 thou under loaded round neck diameter to get the neck tension I want to jam a moly'd Berger in the lands, where they shoot best in my guns.
284, sounds like maybe your barrel doesn't like the heavy bullets, but I'd still try the 180 VLD jammed and the 162 A-Max just touching to be sure.
NZ Longranger
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Unread 11-06-2007, 08:37 PM
Junior Member
Join Date: Jul 2007
Posts: 9
I shot a .25 inch 3 shot group at 300 yards with a stock sendero in 25-06 with the 115 grn bergers 56 grns of reloader 25 .015 in lands.
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