I think Hornady actually recommended using standard primer instead of magnum. I have always had a thing about feeling the need for magnum primers with large charges of slow burn powders and have, to this point used Federal Gold Medal Magnums in the 6.5PRC.This was my problem. I was getting pressure signs early and high ES with magnum primers.
Nice. I hit a great node at 57.7 of H1000 too.Bighorn TL3
MPA Comp Chassis
H1000 @ 57.7gns
Velocity: 3030 fps
Seating Depth Test Left To Right: .020" off, .030" Off, .040" Off
Distance: 116 yds
What was your COAL?Seekins Havak 24” barrel 8 twist .188 freebore
When I first got the rifle I fired and reloaded on piece of brass 13 times with 58-59 H1000 and a 140 VLD and it still held the primer.
I am currently working with 50 pieces that are on their 9th loading and still going strong. This brass is way better than hornadys 6.5 saum brass.
All loads with hornady brass and either a Tula LRM or a Fed 210M primer
I like it so much I’m in the process of building another rifle with a 7.5 twist bartlein with .130 freebore on an SR3 short action to use for hunting...it’s going to be sweet!
COAL with 140 vld is 2.990, .020 jumpWhat is your SD/ES with the H1000?
Are you single feeding the 147’s?COAL with 140 vld is 2.990, .020 jump
147 is 2.945, .060 jump
The 147 shot good anywhere from .020 to .060 that’s why I went with the .130 on the new rifle. It will have a Wyatt’s box and BDL so I will be able to run the 140’s at .010-.020 and fit in the box.
ES and SD with H1000 and RL 26 was under 20 ES and around 8 SD if I remember.
I developed the RL26 load last winter in 5-10 degree temps. This summer I left the rifle and some ammo in truck all day with highs around 95-100 and only gained about 15 FPS. This has been typical for RL26 in everything I have tried it in...7 mag, 7 saum, 6.5-284, 6.5-06 AI, 6.5 saum very stable across a huge temp swings. But I don’t run compressed loads or mag primers, maybe that helps.
So the havak has a medium like action and mag?!?! Might have to go that route anyway.The mag is 3.1” so they feed from the mag. But my new rifle will be 2.95” Wyatt’s box that’s why I went with the .130 FB so they will feed from that mag box.
I went with 24” on the new barrel also. Just works better for my use and I get plenty of speed for hunting applications.
My seekins is at the smith right now getting cerakote on the metal and the stock.
It will be graphite black metal, coyote tan on the stock with black webbing.
Speeds?I haven't shot any H1000 in mine, only RL26 and Retumbo. I wound up with a good load using Retumbo, about a grain under what Hornady gives as max with the 140 ELDM. It shoots very well. My barrel is a Kreiger 8T finished at 28" and wearing an Area 419 brake. I can spot my own hits it is so tame and takes exactly 7 mils dial up for 1,000 yards (100 yard zero).
I haven't got a number for velocity. I took a WAG when get dope out to 1,000 yards and it worked out very well.Speeds?
I really, really like this idea! I never did it because a trip to the range meant an hour drive for me. Not anymore! Now that I'm out in the country this is a 15 minute ordeal.