Went to the range today and did 2 ladder test with a combination of GRT and Quickload for my Tikka 270 WSM and Hornady 150 G InterBonds. Very happy with the initial results and velocities. On the Hunter, shots 8,9,10 were really close with those 3 average velocity of 3036. Next up with IMR 4831 and it was supposed to be 10 shots but number 9 wouldn't load so I will pull that one. The whole 9 shot group was 1.195 with shots 3-7 averaging 3048 fps. I think I have a good place to start and narrow this down. This will be my cow elk load this fall. To bad Hornady discontinued production of Interbonds.
270 WSM Ladder Test with Hunter and IMR 4831 and 150 Interbonds
- Thread starter Pineman
- Start date
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- #3
Joec7651
Handloader
- Apr 7, 2019
- 1,069
- 1,670
Where did your ladders begin and end? That’s not a bad initial neiborhood to be in with 150’s. The IMR4831 looks like it’s going to be promising. Good work.
- Thread starter
- #6
Joe,
With IMR 4831, I started with 60G and ending around 63. That was around 62,400 PSI. I wanted to stay a fair amount under SAMMI of 65000PSI. I maybe could have pushed it harder but I got the velocities I was looking for and so far, the accuracy looks very promising.
With IMR 4831, I started with 60G and ending around 63. That was around 62,400 PSI. I wanted to stay a fair amount under SAMMI of 65000PSI. I maybe could have pushed it harder but I got the velocities I was looking for and so far, the accuracy looks very promising.
Joec7651
Handloader
- Apr 7, 2019
- 1,069
- 1,670
Sound approach. Thanks for the response.
Hunter26
Beginner
- Jul 10, 2024
- 219
- 636
Nice load development so far. I love some Interbonds as well. I was able to find .277 130gr & 150gr Interbonds online just a couple of months ago. Scheels & Euro Optic had some. Not sure about now though.
- Thread starter
- #9
Finally got back to the range today with the 150G Interbonds. I worked on some 3 shot groups based on ladder test with Hunter and IMR 4831. I think I have a winner with this load of IMR 4831. Velocity was 3034 with no pressure signs. It was 50 degrees and a light breeze. I will play with different brass and primers but pretty happy so far.
Attachments
- Nov 4, 2004
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Nice work. I'd say you are where you want to be. Those results will keep your freezer filled.
JD338
JD338
- Thread starter
- #12
In the pre64 I used that combo in i decided after 2,500+ rounds thru it to not shoot it any more. I've got around 3# left and for my 2 other 264wm 's I'll be using other powders. I bought a post64 in '15 or '16 that only has 3 rounds down the pipe and 1 i built on a 110 action for the 150smk's. I might use the last 3# for the 270win or who knows which other cartridge? Maybe I'll donate it to you and gift a loving home!
- Thread starter
- #14
i might as well
wvbuckbuster
Handloader
- Nov 5, 2015
- 3,175
- 3,501
Hey, I'm old but could be adopted
By the way that's a good group. Be your fault if you miss
By the way that's a good group. Be your fault if you missWhatcha need! I have around 300# of just rifle powders.....don't ask for any Alliant 16, 23 or 26.Hey, I'm old but could be adopted
Congratulations on a nice load work up. That should work well for you.
Joec7651
Handloader
- Apr 7, 2019
- 1,069
- 1,670
On the 8th day God made IMR4831.
Just look at my powder locker.
Just look at my powder locker.
wvbuckbuster
Handloader
- Nov 5, 2015
- 3,175
- 3,501
Appreciate it but I'm good, just trying to be funny. Do like IMR4831 for different calibers. Dan.
