hvyw8t
Well-Known Member
I own one of each, with heavy bullets the 6-284 is awesome ! Go for it.
243AI or 6mm-284?
- Thread starter msalm
- Start date
Help Support Long Range Hunting Forum
Great thread. I have been pondering the "next one". A 105 or heavier bullet in a 6mm is appealing. I too have quite a bit of 284 brass. A few hundred that are already 25-284 just begging to be necked down one more time.
Several posters said they can get 3200-3250 with a 105-107 gr bullet. That must be a load that is deliberately downloaded slightly for longer barrel life, right? I say this because I was reading about the 6XC getting as high as 3300 with a 105 gr bullet, RL-17 and a 30" barrel Alliant Reloder 17
I wonder if RL-17 would be useable in the larger 6mm-284 case.
-----------------------------------------
With your brother-in-law's 1 in 8 twist I would be inclined to use the DTAK 115 with its .585 BC
---------------------------------
Taken from 6mmBR: BALLISTICS:
"The 115-grain DTAC has approximately 10 points lower BC than a 142gr 6.5mm Sierra. Everybody's BC calculations vary so I believe this is the best way to evaluate it against the 142gr 6.5 Sierra. (Also if you look at the Berger 115gr 6mm keep in mind that Bergers BC's are not conservative at all.) This means that if you shoot the DTAC 115 at 3000 fps verses the Sierra 142 at 2950 fps then the drift at 1000 yards is virtually the same.
[Editor's Note: Henry Childs has confirmed the BC figure David is proposing. We suggest you use a .585 BC for the 115gr DTAC.]"
----------------------------------
Just imagine that bullet with more case behind it. A max load of perhaps 3150-3200 with the 6mm-284?
comments?
Several posters said they can get 3200-3250 with a 105-107 gr bullet. That must be a load that is deliberately downloaded slightly for longer barrel life, right? I say this because I was reading about the 6XC getting as high as 3300 with a 105 gr bullet, RL-17 and a 30" barrel Alliant Reloder 17
I wonder if RL-17 would be useable in the larger 6mm-284 case.
-----------------------------------------
With your brother-in-law's 1 in 8 twist I would be inclined to use the DTAK 115 with its .585 BC
---------------------------------
Taken from 6mmBR: BALLISTICS:
"The 115-grain DTAC has approximately 10 points lower BC than a 142gr 6.5mm Sierra. Everybody's BC calculations vary so I believe this is the best way to evaluate it against the 142gr 6.5 Sierra. (Also if you look at the Berger 115gr 6mm keep in mind that Bergers BC's are not conservative at all.) This means that if you shoot the DTAC 115 at 3000 fps verses the Sierra 142 at 2950 fps then the drift at 1000 yards is virtually the same.
[Editor's Note: Henry Childs has confirmed the BC figure David is proposing. We suggest you use a .585 BC for the 115gr DTAC.]"
----------------------------------
Just imagine that bullet with more case behind it. A max load of perhaps 3150-3200 with the 6mm-284?
comments?
msalm
Well-Known Member
And a 30" 5R barrel.... We'll see. I have it chambered, and the stockwork is coming up...we'll be shooting it this spring.
Wow this is an old thread! I DID make a 6mm-284 with a 30" 5R Bartlein 1 in 7.5 twist. Never got the intended 115 DTACs to shoot. The 107 Sierra load came together quickly and was accurate. When Berger came out with their 105 hybrid switched to it. Currently still using the hybrid. FYI RL-22 and Retumbo gave very similar velocities and accuracy.
As to most recent poster's question: Where can you get 6mm-284 brass? You have to neck down either 284 win brass or 6.5-284 lapua or norma brass. I would suggest you use Lapua.
As to most recent poster's question: Where can you get 6mm-284 brass? You have to neck down either 284 win brass or 6.5-284 lapua or norma brass. I would suggest you use Lapua.
