Best 7MM cartridge

7mm Mashburn Super magnum.

Rumored to be the parent cartridge for the 7mm rem mag and the the 300 win mag, that makes it twice as good, right?
 
Perhaps some old school stuff. Picture taken for another purpose a few weeks ago - I thought CGN might want to see - 7x57 case on left - I have taken many dozen head of deer with that one since year 2000 or 2001. Centre is 7x61 S&H - I think that was Phill Sharpe's development for his idea of ultimate North American hunting cartridge - I read it was the "push" for Remington to develop it's 7 mm Rem Mag - most European rifles had 26" barrels, I think Remington mostly used 24" barrels - about no one then had chronographs, so there was probably not much actual difference from shooting table? On right is my latest - so, a "wildcat" - 300 Weatherby necked down to 7mm - so MUCH longer than 7mm Weatherby - I have never fired it yet - I understand one can use Start level 7 mm STW data to get going on this one. The rifle is my first ever Remington 700 action. The barrel is circa 28" long, "stainless steel" - not blued or coloured - with a machined / integral helical "brake". I have not fired it yet - I did pick up some H1000 powder and some 160 grain Nosler Accubond bullets, to start with that boomer.

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Best is very subjective as is favorite over 50+ years of shooting and reloading I have had a few in .284" a 7mm08, 280, 284 Win, 7mm rem mag, 7RUM, 7mm PRC they were all very good and at the time I never thought they were the BEST but they were some of my FAVORITE rifles to shoot they all did what they were designed to do, the only one I have left is the 7mm PRC so for me I guess that's the best and my favorite all in one.
 
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