7x64 Brenneke Powders?

[The deer man]

Anybody give me some pointers on what powders they use for the 7x64 Brenneke. I've been looking at R17, R22, H414, H4350, IMR4350 because that's what I keep!?
Thanks TDM

 

[Southern]

What bullets and what game, at typical and max ranges?

 

[The deer man]

What bullets and what game, at typical and max ranges?

For UK Fallow and Red - Sierra 160gr HPBT GK - Ranges generally 50 to 200 yards
S.Africa / Plains game - Nosler 160gr Accubond - Ranges can be 200 to 400 yards

I might have a play with 140gr bullets as a friend of mine, a PH in Bloemfontein, uses Hornady 140gr InterBond for all Plains game in his 7x64 and swears by them. He uses some odd powders I've never heard of! In this weight I'd probably use Accubonds, see what's available.

Thanks

 

[Southern]

The Sierra 160-gr HPBT is probably as tough as the Accubond, at half the cost. High BC.
The Sierra 160-gr SPBT is softer. They both shoot to the same place out of my 7x64s and .280 Remington.

57.0 grains of VV N-160 is super accurate. Max load, so work up.

53.5 grains of IMR-4831 gives 2,850 fps
50.0 grains of IMR-4350 is near max, 2,800 fps.
51.0 grains of RL-19 (2,700 fps) 52.0 grains max ( 2800 fps)
52.0 grains of RL-22 (2,800 fps)

Try some 150-gr Sierras, Accubonds or Hornady Interlock 154-gr with 51.0 gr IMR-4350 for 2,875 fps.

I want to try a 140-gr Barnes in mine, with 52.0 to 57.0 grains of RL-19 (2,900 to 3,100 fps).

 

[scrumbag]

Have a look at Vihtavouri, they list a few

7 x 64 - Rifle reloading - Reloading Data - Vihtavuori

 

[Southern]

I have not tried H-414 (W-760) in a .280 Rem or 7x64, but a friend uses about 52.0 gr for the 120-gr Ballistic Tip and the 140-gr Sierra in his .280, a Custom Shop Model 700 with a 22-inch barrel and Kevlar composite stock - very accurate. He hunts in big woods, and big grain fields. This thread reminds me to ask him about his exact recipe.

 

[Sinistral]

Anybody give me some pointers on what powders they use for the 7x64 Brenneke. I've been looking at R17, R22, H414, H4350, IMR4350 because that's what I keep!?
Thanks TDM

Apart from H414 maybe most of these will work.

Federal used IMR 4831 in these .......

http://www.gunauction.com/buy/8363823

 

[The deer man]

Thanks all. The IMR 4831 looks good on paper and Quickload, I might just need to find some.

Southern, interesting what you say about the Sierra HPBT v the Accubond as being just as tough, that's what I was hoping. I use the Sierra in 140gr SPBT and HPBT in my 7mm-08 and find them very good the HPBT slightly more accurate and solid.

This is all a bit cart before the horse! I've got all the re-loading components and the rifle but in the wrong calibre! Hopefully get the barrel switched over in the next couple of weeks. Barrel 1:9 twist or there about, still to be decided?

 

[Southern]

Is your rifle a Sauer 202 switch barrel? Try the N-160 and 160-gr Sierras. 4831 is a great powder, too. I got that about the Sierra 160s straight from the engineer at Sierra, as I was curious and called the tech support number.

My .280 is 1:10, Mauser is about 1:8.7, Steyr somewhere 1:9+. The .280 and Steyr 7x64 have, so far, shot everything from 120 to 175 really well. But there are so many good 160-gr bullets, that I may just settle on a mix of that weight for all of these 3 rifles, plus the one I just built ( still trimming it out ).

 

[rarms]

I use about 43 grains of varget under a 140grn Nosler BT

 

[Southern]

43.0 gr Varget is great in a .308 Win / 7mm-08, and will only give you about the same velocity in the larger .30-06 / .280 Rem / 7x64mm case.
A powder like H-414 / W-760, 4350, or RL-17 will give accuracy, and about 3,000 fps in the 7x64, if you want that velocity. The OP had several of those powders on hand.

 

[The deer man]

No not a Sauer, it's a Tikka M695 so a new fixed barrel replacement. I am assuming that the 270 magazine will take the 7x64 rounds? Same action and almost cartridge length. Apart from the 7x64 taper I can't see why not unless the magazine lips need refining.

 

[The deer man]

Sounds like a 1:9.5 twist might be the way to go. Sako do their rifles in 1:10 but then their ammunition seems biased to two 150g loads, one 120gr and one 170gr. So I'm getting the feeling 1:9 or 1:9.5 for the 160gr I want to use.

Any more thoughts before I get more confused!?

 

[Laurie]

1 in 9" stabilises nearly all 7mm bullets including very long Berger 180gn VLD and Hybrid match bullets, so will be more than adequate for shorter 160gn sporting bullets. (It's the bullet length that primarily determines the necessary twist rate, not weight in itself. Generally, heavier bullets are also longer hence the linkage between rifling twist and bullet weight - but a blunt 175gn RNSP Hornady needs a considerably slower twist rate than lighter but lengthier SST or Nosler ballistic Tip types.)

All-copper bullets are considerably longer than gilding metal jacket / lead core types, so either need a faster rifling twist rate than same weight conventional bullets, or as is more usually done, a lighter and hence shorter model is substituted. 1-9" will cover the all-copper / non lead types too.

 

[Heym SR20]

Here you go:

http://www.chuckhawks.com/7x64_Brenneke.htm

I use the 7x65r with 139gn Hornady soft pint over 51.5gn of IMR 4831 - minimal recoil and every deer falls over. I have a tubb of 4350 as it seems to give a bit more velocity and will work up a load sometime.