..........Having said that, one of my fav loads was 40.0grs of H4350 with a Berger 140 LRBT seated 6-7thou INTO the lands. It was that very load one summer at Bayou Rifles that earned me a "High Master" classification at 1000 yards in F-Open...
I was not getting small/consistent groups with different bullets/powder combo in my 6.5x47. In the same range session, I had loaded some Berger 140 LRBT samples a friend gave me to try - for a quick comparison. Without any load development - the Berger 140 LRBT shot groups that were 1/2 the size of any of my other bullets/loads... This barrel just liked the Berger 140 LRBT better than anything else I tried.
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