I have a 15 twist ready to chamber for the 30 x47 lapua case and quite a few of 135 grain 10 x bullets to try I want to start tuning while it’s relatively cool because of what it could be there in November.Stan I ran a modified 30x47 called the Jaguar 2 that Sid chambered me and I used it only at 200 & 300 yards and meters from 2016 to when the barrel gave up on me in 2018. I did pretty well with it. Was running 43.5-44.0 of 133 with a 16TW Hart using a 112 Bart. at 3225fps. I tried 135 in it and wasn't getting the accuracy I was getting with the 133. Federal 205's did not cut it either in that cartridge. When I changed to a BR4 the groups shrunk immediately. Cline had Ronnie Long chamber him a 30x47 barrel and he gave up on it. It just wouldn't perform for him.
Now is the time to start tuning in wind for an event such as this.

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