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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7 mm SHERMAN SHORTMAG vs 7 SAUM
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<blockquote data-quote="Rardoin" data-source="post: 2024000" data-attributes="member: 114954"><p>[USER=13833]@elkaholic[/USER] Rich, when I decided to test the 7SS for F-class my goal to have a case that will push heavy for caliber high BC 7mm bullets at competitive velocities and have barrel life better than a 7 SAUM. I was expecting 1400rds of precision/competitive barrel life. I just shot the Texas State Rifle Association 600yd championship this past weekend using the 7 SS/190 Hornady A-tips/N165 running at 2730-40fps. I decided to run my first barrel since I have not had time to finalize load development in the second. I started to weekend with over 1450rds and I was not certain that it would still group tight enough to be in the hunt with the top shooters but figured I would go with it anyway. Much to my chagrin the barrel was still capable of cleaning the F-class target in some pre-frontal system very stiff winds. An even greater surprise was finding myself tied by score for the lead but well behind by 9 X's (tiebreakers). The front came through as we were starting the final day matches and blew 20-25 with recorded gusts near 40mph. I was able to still hold second/tied for first by score but, on the last match, I closed the X count to 3...which told me this barrel, at 1600rds, has lost nothing since new! I am flattened by the extremely low throat erosion that N165 is getting me with the very long bearing surface bullets. I hope more 7SS shooters give N165 a test.</p></blockquote><p></p>
[QUOTE="Rardoin, post: 2024000, member: 114954"] [USER=13833]@elkaholic[/USER] Rich, when I decided to test the 7SS for F-class my goal to have a case that will push heavy for caliber high BC 7mm bullets at competitive velocities and have barrel life better than a 7 SAUM. I was expecting 1400rds of precision/competitive barrel life. I just shot the Texas State Rifle Association 600yd championship this past weekend using the 7 SS/190 Hornady A-tips/N165 running at 2730-40fps. I decided to run my first barrel since I have not had time to finalize load development in the second. I started to weekend with over 1450rds and I was not certain that it would still group tight enough to be in the hunt with the top shooters but figured I would go with it anyway. Much to my chagrin the barrel was still capable of cleaning the F-class target in some pre-frontal system very stiff winds. An even greater surprise was finding myself tied by score for the lead but well behind by 9 X's (tiebreakers). The front came through as we were starting the final day matches and blew 20-25 with recorded gusts near 40mph. I was able to still hold second/tied for first by score but, on the last match, I closed the X count to 3...which told me this barrel, at 1600rds, has lost nothing since new! I am flattened by the extremely low throat erosion that N165 is getting me with the very long bearing surface bullets. I hope more 7SS shooters give N165 a test. [/QUOTE]
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7 mm SHERMAN SHORTMAG vs 7 SAUM
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