7 SS 175 Berger EH powder choice

[haisardao]

I'd like to work a load for my 7 SS, using 175 bergers, out of my 20 inch barrel, seated at 2.950. I have an accurate load with RL 26, unfortunately found out the hard way that Texas heat and RL 26 don't mix well together . Any experience with Retumbo or N568? I have some data from H1000. I can get some N565 just not sure how temperature stable it is.
Thanks
H

 

[Dmagna]

H1000 and retumbo have worked well for me in heat. I have shot n568 a bunch just not in the temp swings

 

[Netz]

I'd like to work a load for my 7 SS, using 175 bergers, out of my 20 inch barrel, seated at 2.950. I have an accurate load with RL 26, unfortunately found out the hard way that Texas heat and RL 26 don't mix well together . Any experience with Retumbo or N568? I have some data from H1000. I can get some N565 just not sure how temperature stable it is.
Thanks
H

Call Berger and they will provide load data for H-1000 and other powders of your choosing.

 

[RB II]

I shoot the 7SS and the 175 Berger EH with 61.5 grs of N565 in the Tx heat. Not a 20" bbl but a 24". So far no issues. My bbl like .050 off the lands so it is a somewhat compressed load.

 

[haisardao]

I shoot the 7SS and the 175 Berger EH with 61.5 grs of N565 in the Tx heat. Not a 20" bbl but a 24". So far no issues. My bbl like .050 off the lands so it is a somewhat compressed load.

Thanks! I picked up some N565 today. What primers are you running?

 

[Longtine88]

N565 works. It's still a little temp unstable but no where near RL26. I would suggest trying RL23 also. I shot today with both powders and it was 105. I was shooting cold bore shots though. I did run the batteries down on my Coleman homemade barrel cooler lol.

 

[RB II]

Thanks! I picked up some N565 today. What primers are you running?

CCI BR-2. I shoot no more than 5 shot strings and let them cool to ambient before next round. So I usually take 5-6 rifles to the range and swap out regularly. I shoot on my own property so I have 3 target stands loaded with targets, one for each rifle. That and a spotting scope, cold towel and cooler and I am good for a few hours!!!

 

[Fubarredz]

n565 51.4gr
Berger 175
.052 from the lands
2890fps
ES 3-6fps (all year long no matter of temperature here in texas)
.150 on a bad day.

 

[haisardao]

n565 51.4gr
Berger 175
.052 from the lands
2890fps
ES 3-6fps (all year long no matter of temperature here in texas)
.150 on a bad day.

51.4 or 61.4?
Thanks

 

[Fubarredz]

61.4

 

[Fubarredz]

61.2 - 61.6 gave me the same accuracy i just split it in the middle. and went with the 61.4 think i got better es with the 61.4 than the others.

 

[RB II]

n565 51.4gr
Berger 175
.052 from the lands
2890fps
ES 3-6fps (all year long no matter of temperature here in texas)
.150 on a bad day.

Almost exactly my load for the 175s. But I am not getting that same speed, though I know that load produces that accuracy and speed. I am only getting 2708 in 24" bbl with about 100 rounds through it. Accuracy is the same.

 

[lancetkenyon]

H1000 for ultimate stability, but lower velocity.
RL23 for great velocity and good stability.
N565 for great velocity, good stability, but a bit dirty.

 

[haisardao]

H1000 for ultimatw stability, but lower velocity.
RL23 for great velocity and good stability.
N565 for great velocity, good stability, but a bit dirty.

Thanks, great way to put it.
H