TC Venture 270 wsm - Page 2

kilotanker22 · February 7, 2019, 12:12 AM

Quote:

Originally Posted by reynolds357

Supreme 780 is the highest velocity powder I have found in 130 gr.

At just half a grain above Hodgdon's starting data. 71.5 grains of H-1000 yielded me an average speed of 3305 with the Sierra Game king SBT. I am not sure how much faster I would want to push that bullet. That Sierra is gonna come apart if I shoot at something closer than 100 yards. What velocities are you getting with 780?

LOL, Head shots would be ok close up. I guess I could always spend the extra cash for accubonds or a Barnes....

reynolds357 · February 7, 2019, 09:06 PM

I am getting 3320 from 780. All I could get from H1000 was high 3100s, never broke 3200. I took 1000 up too high on pressure to get that. I had 2 out of 5 fail to extract without the help of my steel rod.

kilotanker22 · February 8, 2019, 01:15 AM

What I found interesting was the fact that with the H1000 and that Sierra bullet. I had a faster average speed with 71.5 grains of h1000, with a better SD. Than I had with 72.5 grains of H1000.

Since I am getting good velocity with this powder with that bullet. I am also going to try it with the 140 grain Ballistic tip.

kilotanker22 · February 8, 2019, 01:18 AM

With RL 26, I got the 140 grain bullets up to 3150 avg with a SD of 10.

I was also able to push the 130 grain bullets 60 FPS faster with H1000 than RL 26. So if that trend continues with the 140 grain bullet. I may be able to get around 3200 with the 140 grain bullet. Well see.

Maybe I just have a fast barrel, but I didn't expect those velocities with H1000...

February 7, 2019, 09:06 PM	#27
reynolds357 Senior Member Join Date: December 10, 2012 Posts: 6,165	I am getting 3320 from 780. All I could get from H1000 was high 3100s, never broke 3200. I took 1000 up too high on pressure to get that. I had 2 out of 5 fail to extract without the help of my steel rod.

February 8, 2019, 01:15 AM	#28
kilotanker22 Senior Member Join Date: October 14, 2012 Location: North Central, PA Posts: 2,117	What I found interesting was the fact that with the H1000 and that Sierra bullet. I had a faster average speed with 71.5 grains of h1000, with a better SD. Than I had with 72.5 grains of H1000. Since I am getting good velocity with this powder with that bullet. I am also going to try it with the 140 grain Ballistic tip.

February 8, 2019, 01:18 AM	#29
kilotanker22 Senior Member Join Date: October 14, 2012 Location: North Central, PA Posts: 2,117	With RL 26, I got the 140 grain bullets up to 3150 avg with a SD of 10. I was also able to push the 130 grain bullets 60 FPS faster with H1000 than RL 26. So if that trend continues with the 140 grain bullet. I may be able to get around 3200 with the 140 grain bullet. Well see. Maybe I just have a fast barrel, but I didn't expect those velocities with H1000...