7mm mag and .270 powder recommendations

fastmark · Rookie Member Joined: Jan 02, 2009 Posts: 1

I've used H4831 and the H4831sc in the past for both guns and have been happy. My 7mm is a custom douglass barrel and does require a little over the max to shoot good groups. How bout some more modern powder recommendations for these loads? I have thought about the H1000.

Donut Slayer

I dont know about the 7mm, but for the 270, you already have the powder. I've had excellent results with both H4831 and IMR4831 in my 270WIN. And welcome to the 'nut.

wiersy111

I use IMR 4350 in both. They work good for me, I have also used IMR 4831 with good success.

Grumulkin

slimjim

My 270 loves IMR 4350. I getting 3080fps with 130gr GMX, 3450fps with 110 TTSX, and both loads are 1/2 MOA. I lose 40 to 60fps in colder weather, however. No real impact unless I'm shooting longer than 300yds. I don't know of a modern powder that is less temperature sensitive thatwill give me those velocities.

Ominivision1

My 7mm Rem mag likes Retumbo.

chambered221

Hard to beat IMR 4350 in the 7mag !!!

If I were gonna try the newer varieties I'd look into Retumbo, Hybrid 100V and Supreme 780

slimjim

chambered is back and in full form! Hoorah!!

Grant

I use IMR4831 in my 7mm and my 270 and have for years.

Vince

Grant....yer back mate. Good to see you again buddy...what ya been up to lately?

Elvis

AR2213sc works well in my old .270 but she isnt fussy.

Grant

Vince wrote:

Grant....yer back mate. Good to see you again buddy...what ya been up to lately?

Hey Vince!

Glad to be back. Life has just been busy, bought some property in Northern Saskachewan. Always need a new place to go hunt and fish and Saskatchewan seems to be the place for me. Sask tourism estimates they have 100,000 lakes, (Not to mention the huge Whitetails that inhabbit the northern half of that province) if I fish a few one every day it'll only take me 273 years to get to them all..... Laughing

Now I just need to win the lottery, retire and move there from Alberta. What's new in your world?

Vince

New...nothing really mate...I'm a year older, fully retired and this summer is so hot I'm sweating like a ni&&er on a rape charge.

This year I plan on getting out into the field more often, relaxing, enjoying the ambiance and doing a little hunting...if SWMBO lets me that is. Laughing

Daisymaye · Rookie Member Joined: May 04, 2013 Posts: 4

This is to Fastmark from on top the page. You wanted recommendations for modern powder for the 7mm mag? I use Reloader 22 in mine, but usually only for 120gr. ballistic tip & 115 gr hollowpoint. It's pushing them upwards of around 3400 with the 115 gr, and 3350 or so with 120gr. But that's right in between the max and min load & I use the "One book one load" manual I bought @ Cabelas. Also I've used H4350 with my 115 gr and right now pushing 'em @ 3507 is what I believe they are doing that lso is 2 grains under the max of 67 gr. of H4350, like I said I only used 65 gr. Hopefully that will help.

TRBLSHTR

A truly universal powder for just about all large capacity std and magnum bottleneck cartridges is 4831-h or imr or sc!I use it in about six dif't cartridges!It works best with medium to heavy bullets per caliber also.