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6.5 SHERMAN SHORTS WITH 156 BERGER
- Thread starter elkaholic
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Shoalwater
Well-Known Member
So, I've had my 6.5SS for almost a year and have not had a chance to even fire form brass yet. Life has been in the way, new house build, work, kids sports, etc. have just all been crazy this year. I am finally getting around to setting up my reloading equipment in the new house and plan to start fire forming and load development in the next few weeks. my question is on powder temp stability. I live in south Texas, so it's hot most of the year, I've read quite a bit, that RL26 and N565 start to really pressure up when temps get in the mid 80's and up, which is most of the year here. My concern is, if I develop a load now, temps in the 50's and 60' most days, am I going to be in trouble in a few months when we start getting back in the 80's and 90's, and 100's shortly after? I built this rifle specifically for long range hunting, mainly deer, but will take it Elk hunting in 2021 as well. Also, plan is to run 156 Berger's pretty much exclusively. Rifle specs are
Curtis Custom Axiom Hybrid Action
Trigger Tech Special
Proof Sendero Lite 24"
Manners EH1 with Curtis DBM and Alpha Mag
Still deciding on scope, but threw one of my Vortex PST 3-15's on it for now. Trying to find a light weight FFP scope in 3-15/4-16 range is pretty dang tough. Was going to try a March, but got scared when US support went away.
Curtis Custom Axiom Hybrid Action
Trigger Tech Special
Proof Sendero Lite 24"
Manners EH1 with Curtis DBM and Alpha Mag
Still deciding on scope, but threw one of my Vortex PST 3-15's on it for now. Trying to find a light weight FFP scope in 3-15/4-16 range is pretty dang tough. Was going to try a March, but got scared when US support went away.
Last edited:
I did a temp test of RL26 and it was pretty **** consistent. I also shot it for an entire year. From February '18 to Jan '19 in Colorado and New Mexico. Many of those matches started at 30° and finished at 72°. I shot the same load in New Mexico and Utah in the 80's and 90's. It was very consistent. Load and shoot with confidence. The only caveat in my experience is that I was using a very low pressure load. But the MV did not change much. It was consistent.
lancetkenyon
Well-Known Member
You can get good speeds with H1000 and RL23 too. I am getting 3025 with H1000 in my 26" 1:7.5" w. 156s, and 3055 w. RL23. I just tested RL26 this morning in AZ for a strictly cold weather hunting round, as I have witnessed high pressures over 85° on a couple occasions with a few different cartridges near max loads. I hit 3035fps today and never hit any pressure yet.
blackdog
Well-Known Member
Are you guys running the 156's (either SS or SST) in standard short action magazines without any issues? What COAL are you running? And how much of a jump are you guys finding the 156's like?
elkaholic
Well-Known Member
They run at about 2.960" in the SS and 2.910" in the SST. They seem to like .015" -.020" jump
elkaholic
Well-Known Member
I prefer the dbm for a wsm as long as you can get
elkaholic
Well-Known Member
That I dont know?
Crowe284
Well-Known Member
Are you running at 2.960" or saying they touch there and then you are jumping them 015-.020? Just confused because you said you prefer DBM but 2.960" would be outside of wsm accurate mag @ 2.950". Maybe I'm missing something or am confusing what your saying. Thanks.
elkaholic
Well-Known Member
In order to run the SS with the dbm and 156 you need to have one that makes 2.990" or that you can knock the front plate out of. The sst is fine in a normal 2.950"
The ss is about 2.970-2.980 to the lands and the sst is .050" less with the . sst II reamer
Crowe284
Well-Known Member
Thanks for the reply. I'll be running in a manners mini chassis with wsm accurate mags so will just have to jump them a little more I reckon.
elkaholic
Well-Known Member
Or run the sst
