VLD Pilot
Well-Known Member
If people have feed issues with their 284s, it's curable. It's not common. I've had several DBM 284s and zero problems. They feed as good as any 308 mag fed rifle.
280ai vs 284 Winchester
- Thread starter Timnterra
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Stockbroker
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Turnbolt53
Well-Known Member
I am getting 3030 from my 84L 280AI with the 160 Accubond and RL26, and great accuracy.
Have not shot the 120 ttsx, but Barnes load data shows 3474 max.
Ballistics are identical to the 7SAUM.
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jaservices
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Finally completed a build of a 25 x 284 that I started many years ago. The action is a Model 1909 Mauser with a 24" Douglas Premium 3 Twist barrel, started this build so long ago I am not sure what some of that means. Am looking for advise on powder charge of H4350 or H4831 behind Hornady 117 Grain SST pills, using Winchester Large Rifle primers tucked into Lapua Brass.
Thank everyone in advance!!
Thank everyone in advance!!
Mine is a 284 win not a 280ai. But those are impressive numbers
VLD Pilot
Well-Known Member
H4831/4350 are typical "Go Too" powders for the .284s. While they don't offer top velocities, they do offer the best of accuracy. I swapped out those for RL17 and most recently RL23 for higher velocities when needed. In my SA 284 with the 162s, I wanted 3000 fps. Didn't know if it was achievable in a SA but I found out it was. Typically you need a LA for that kind of speed but I swapped out the LA for RL17. Haven't looked back. I do go back to the H4831/4350s for banging steel and shooting ground hogs at distance.
jaservices
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The rifle will be used primarily for hunting out to maybe 500 yds. Thank you for the input.
COBrad
Well-Known Member
Doing load development the past two days with H4350 and 168 grain Matchkings in a New Ultra Light Arms .284. The 200 yd group was great but heavy bolt lift with a 51 grain charge. Dropped 1 grain and reshot today at 130 yds. Yesterday was testing seating depth and the 200 yd group was best, seated -.010 from the lands.
Look at H1000 or Retumbo. Yes they are magmun powders but they shoot great in my 6.5x284
Also, try RL16. Working good in my LA 284win.
Little to fast burning for me. I use RL 15/16 for my 223
Right next to H4350 in the burn Chart. I read they developed RL16 with emphasis on temperature stability.
COBrad
Well-Known Member
My 160 grain Accubond hunting load uses H4831sc and I'm getting a compressed load before I see pressure. Mag length on this rifle is 3". I'll stick with the 4350 for the MK's and do further load testing with faster powders with the accubonds to see if I can get more speed. I don't believe slower powders will move me in that direction with these bullets and mag restrictions. I believe Forbes was targeting 140 grain bullets.
VLD Pilot
Well-Known Member
What velocities are you seeing with the 4350 ? At 2.975, I was getting around 2900-2925 with 4350 with the 160 Accubonds. 25" barrel. 4831 was slower.
