Bless you
Going Back To Where I Started........... Kinda
- Thread starter ButterBean
- Start date
Help Support Long Range Hunting Forum
Well I finally got time to do some fire forming and some load work up on two bullets, 35g HH and the 52g HH, I will go ahead and tell you I made a mistake on the twist rate@ 7.0, as slick as the Hammers are 4770 is all I can get out of the 52g HH safely in my rig, the twist is just to tight had it been a 9 twist I feel sure I would have made 5K.
The 35 made it to 5138 safe in my rig, load work up was done with 3 shots for each bullet, ended up at 64g of H 4350 with the 35 and 62g of H4350 with the 52's. Both with CCI 200's
I have 51AH' and 44g HH's on the way to test, a little disappointed in myself but I'll take it regardless, no crimp on these loads as I have sent 5 cases to LEE for dies to be made, both loads followed standard Hammer load development trends, all six shots were sub 3/4 Moa.
More to come when I can get to it
Bean
The 35 made it to 5138 safe in my rig, load work up was done with 3 shots for each bullet, ended up at 64g of H 4350 with the 35 and 62g of H4350 with the 52's. Both with CCI 200's
I have 51AH' and 44g HH's on the way to test, a little disappointed in myself but I'll take it regardless, no crimp on these loads as I have sent 5 cases to LEE for dies to be made, both loads followed standard Hammer load development trends, all six shots were sub 3/4 Moa.
More to come when I can get to it
Bean
Nice Bean!
I may be way off here but I don't see how you could gain 230fps 4770 to 5000 with the 52HH in a 9twist vs a 7? Although you are spinning them at 490k maybe dropping the rpm's would relieve some pressure, I'm not sure.
I may be way off here but I don't see how you could gain 230fps 4770 to 5000 with the 52HH in a 9twist vs a 7? Although you are spinning them at 490k maybe dropping the rpm's would relieve some pressure, I'm not sure.
It will, 9 might still be too much
del2les
Well-Known Member
From our experience many years back with the old 22-06 and 22-6mmAI, even using 1/12tw we could not break 5k with 55 nor the 50's, but those were not HH bullets.
The 1/7tw should make for for a great MR/LR/ELR with the heavies
Last edited:
Yeah I'm actually thinking of pushing the heavier bullets fast
del2les
Well-Known Member
The easiest way I know to break the 5k mark with a 50gr .224 bullet.
Last edited:
I've got those in stock
Calvin45
Well-Known Member
I wouldn't sneeze at 4700+ fps holy smokes!
That being said, it's not 5000 and that really is a magic number isn't it? Everyone and their dog has broke the 4K barrier….heck even this dummy has done it with a .257 wby and a .300 Winnie haha. I don't know anyone personally who has broken 5000.
I'm curious…does increasing twist rate really increase pressure and inhibit velocity that much? I've heard lots of conflicting views.
That being said, it's not 5000 and that really is a magic number isn't it? Everyone and their dog has broke the 4K barrier….heck even this dummy has done it with a .257 wby and a .300 Winnie haha. I don't know anyone personally who has broken 5000.
I'm curious…does increasing twist rate really increase pressure and inhibit velocity that much? I've heard lots of conflicting views.
del2les
Well-Known Member
I have and with the above 30-06 sabot handload with a 50gr bullet. I have also done it with a hand swaged 17gr .224 loaded in a 222 Rem with 24gr of 2400 powder (5,250fps with a rather high ES).
Calvin45
Well-Known Member
Yeah those accelerator-type sabots are neat, I've contemplated playing with them.
Any accuracy, at all?
