07-14-2013, 03:38 AM
Spent some quality time at the range with the Grendel today and apart from it being cold and very wet things went well.
The 100gn NBTs with a 30gn charge of BM1 under them topped out at 3050fps with single digit ES and SDs, but the bolt lift was hard and I'll drop at least 1gn out of that load before I keep going. Accuracy was just over 1" for three rounds, significant room for improvement there.
The 108gn Scenars would not stabilise with the 1:10 twist barrel. I would recommend a 1:9 twist barrel in future.
The standout of the day was my new 6/223 which printed a four shot group into under .5in, with the fifth shot (called as a flyer) making the group just over .75in at 100m with a 6x scope.
The 100gn NBTs with a 30gn charge of BM1 under them topped out at 3050fps with single digit ES and SDs, but the bolt lift was hard and I'll drop at least 1gn out of that load before I keep going. Accuracy was just over 1" for three rounds, significant room for improvement there.
The 108gn Scenars would not stabilise with the 1:10 twist barrel. I would recommend a 1:9 twist barrel in future.
The standout of the day was my new 6/223 which printed a four shot group into under .5in, with the fifth shot (called as a flyer) making the group just over .75in at 100m with a 6x scope.