Best Powder for the Heavies in 243 Win

[JaoeyP]

Hey gents! Recently got my 7" twist 243 win put together and am looking for your best powders/loads for the SMK 110 gr and DTAC 115 gr bullets. Thanks in advance!

 

[R.Morehouse]

Try some H-1000...........

 

[1lnbrdg]

H-1000 due to the price, N-165 would be 2nd choice only due to the price.

 

[Patton243]

H1000 95 grain and up. R-26 but hard to find.

 

[Rtheurer]

R26, H1000, N160, N165, Maybe H4831SC but it will be slower than the others. Retumbo is used but Personally have not tried it.

 

[Dgd6mm]

H1000, IMR7828ssc

 

[JaoeyP]

H1000 95 grain and up. R-26 but hard to find.

I thought for sure you'd suggest H-1000 because anything else would burn up the barrel!!!

Thanks for the input guys, I'll grab a pound of H-1000 and give it a shot.

 

[Capt. Oblivious]

R26, H1000, N160, N165, Maybe H4831SC but it will be slower than the others.

Good selection here

 

[Zero333]

H-4831 (H-4831sc is better for 80 to 100grainers, H-4831 has better fill for 105-115grainers, same data for both)
N-165
N-160
H-1000
RL-25
RL-26
Retumbo
IMR-7977
IMR-8133
IMR-7828 / 7828ssc

 

[Archis]

I'll toss out one other option. I recently ran out of my stock of H1000 (my goto for the 115 DTAC's) and had a few pounds of H100V sitting around. Worked up a load of 40gn under the DTAC's with Lapua brass / Fed 210M primers and shot several 1/2moa groups with low SD/ES. Haven't had a chance to see how temp sensitive it is, I suspect it'll be similar to other double base ball powders. So far though, its been promising.

 

[1lnbrdg]

I'll toss out one other option. I recently ran out of my stock of H1000 (my goto for the 115 DTAC's) and had a few pounds of H100V sitting around. Worked up a load of 40gn under the DTAC's with Lapua brass / Fed 210M primers and shot several 1/2moa groups with low SD/ES. Haven't had a chance to see how temp sensitive it is, I suspect it'll be similar to other double base ball powders. So far though, its been promising.

How much did it fill the case? I'm crunching a lot of H-1000 though it sure works good.

 

[Archis]

Quickload says I should be around 93% case fill.

I am in the same boat with the H1000, lots of crunching!

 

[avidflyer]

I'll toss out one other option. I recently ran out of my stock of H1000 (my goto for the 115 DTAC's) and had a few pounds of H100V sitting around. Worked up a load of 40gn under the DTAC's with Lapua brass / Fed 210M primers and shot several 1/2moa groups with low SD/ES. Haven't had a chance to see how temp sensitive it is, I suspect it'll be similar to other double base ball powders. So far though, its been promising.

what was your load? 46.0 ? Did the dtac like to be jammed or off?

 

[Archis]

The load I’ve used for about 750rds was 46.5gn of H1000 with the DTAC’s jumped .020” off the lands. They shot a little better jammed into the lands .005” but having to constantly adjust seating depth to accommodate throat erosion got old quick. Much more forgiving when jumped.

 

[Shawnba67]

I just did up a 30" 7 twist 243 last season, heres what i found
H-1000 46.5gr 110smk= 2996fps es of 6 might as well run a dasher though (it shot well)
Rl 26 47gr=3320fps es went nuts as rifle got hot shooting f class, the e-targets were showing 200fps of deviation most other guys were showing 50fps or less. my first 3 shots were under 20fps spread. I got ejector marks at 48gr@3400fps.
4831sc I cant remember charge but 3260fps 12-15es staid stable shot several matchs. I would have loved to give h4350 a go but never found any.
If I werent shooting long strings I would sure give 26 a look for shear horsepower.

 

[long40shot]

My 243 does very well with H4350 over a 115 Berger.

 

[Rob01]

H1000 works but I have always used H4350 and it does great with 105-115grn bullets in my match rifles.

 

[urbanrifleman]

How come no N160 loads like Whidden uses?

 

[Dgd6mm]

How come no N160 loads like Whidden uses?

I was just scanning the loads in the .243 forum and noticed Joe Hendricks using N165.

 

[1lnbrdg]

How come no N160 loads like Whidden uses?

My 1 try with it, my throat eroded very fast, like H-4350. Shot good velocities but short barrel life.