AusVarmint

Tony Z wrote:Seddo i have done so many 6mm wildcats i can't remember half of them. The two best by far and away for speed fitted to a powder burn rate of 2209/Re19 has to be the 6/6.5x55 or the 6SLR. The 6/284 suffers from getting the right burn rate powder to get things really moving along. My 6/284 x 1 3/4" was equal in speed to the full length cartridge because it was a better fit for the 2209 of the time, which is somewhat slower than current batches which can be closer to 2208. Jeff Rogers ran the 6/6.5x55 i did for him for a number of years in FClass using old batch 2209 and 105 Lapuas running them at 3450fps. Hard on brass but from a 100 yards to a 1000 there has never been a flatter shooting rifle i have ever seen. Simple chambering to, just run the 6BR reamer in till you hit length and the base of Swede brass fits perfectly to that taper. No idea why so few have done it as it is a spectacular cartridge with 70 to 75 grainers at close to 4k with good barrel life. There was a very good article in PS magazine about a similar cartridge pairing in 6.5 and 6mm Rogue done many years ago. The 6.5 is used very successfully by Pete Smith of Innisfail where he is a legend of FClass for those that know, but the 6mm version, the far better one in my view and by a very long way, is never seen.

My SLR using the old brown box Lapua 308 brass, the best by far, had the 103 Copperheads doing 3450 fps with light ejector marks. 3400 fps was a good safe load using a case full of Re19. New batches of 09 could not get near that and showed pressure at 3250 fps.
In a 10 twist barrel you may get the SMK 95s to fly, and everything else below is no issue except for bullet disintegration at speeds over 4K. At 3500 to 3600 fps the 95s with a .500 BC would be awesome as they are just about the most perfectly fitted pill for a 6 mil. Speed and BC to match where the 103-107s have the BC but are often hamstrung because of speed.
To me, from my dealing with the 6/284s over a number of years, they are missing something that i could never find. Maybe the original 2213 was the answer and i am just about certain Herb Valerius used that for his many Fly wins in Canberra. He did tell me once exactly what he used, but i cannot recall. But he never ran it hard because the Win brass, pre Lapua, was never that good. It is lately though. The Lapua not so.

Tony Z wrote: ↑Wed Apr 12, 2017 4:21 pm Seddo i have done so many 6mm wildcats i can't remember half of them. The two best by far and away for speed fitted to a powder burn rate of 2209/Re19 has to be the 6/6.5x55 or the 6SLR. The 6/284 suffers from getting the right burn rate powder to get things really moving along. My 6/284 x 1 3/4" was equal in speed to the full length cartridge because it was a better fit for the 2209 of the time, which is somewhat slower than current batches which can be closer to 2208. Jeff Rogers ran the 6/6.5x55 i did for him for a number of years in FClass using old batch 2209 and 105 Lapuas running them at 3450fps. Hard on brass but from a 100 yards to a 1000 there has never been a flatter shooting rifle i have ever seen. Simple chambering to, just run the 6BR reamer in till you hit length and the base of Swede brass fits perfectly to that taper. No idea why so few have done it as it is a spectacular cartridge with 70 to 75 grainers at close to 4k with good barrel life. There was a very good article in PS magazine about a similar cartridge pairing in 6.5 and 6mm Rogue done many years ago. The 6.5 is used very successfully by Pete Smith of Innisfail where he is a legend of FClass for those that know, but the 6mm version, the far better one in my view and by a very long way, is never seen.

My SLR using the old brown box Lapua 308 brass, the best by far, had the 103 Copperheads doing 3450 fps with light ejector marks. 3400 fps was a good safe load using a case full of Re19. New batches of 09 could not get near that and showed pressure at 3250 fps.
In a 10 twist barrel you may get the SMK 95s to fly, and everything else below is no issue except for bullet disintegration at speeds over 4K. At 3500 to 3600 fps the 95s with a .500 BC would be awesome as they are just about the most perfectly fitted pill for a 6 mil. Speed and BC to match where the 103-107s have the BC but are often hamstrung because of speed.
To me, from my dealing with the 6/284s over a number of years, they are missing something that i could never find. Maybe the original 2213 was the answer and i am just about certain Herb Valerius used that for his many Fly wins in Canberra. He did tell me once exactly what he used, but i cannot recall. But he never ran it hard because the Win brass, pre Lapua, was never that good. It is lately though. The Lapua not so.