Anyone use VihtaVuori powders

Anyone useing N560?

500 series is their high energy stuff

How do you like VihtaVuori powders?

VV powders have an excellent reputation with the target shooting crowd.

Those Finns just seem to know their way around firearms.

flaco

I've used N560 in 30-60 (200-220grs bullets), 300Winmag and 375RUM, it's burn rate is on par with Rl22. It needs high pressure for maximum accuracy (like all other powders in the 500 series).
I use only VV powders in my 6mmBR rifle, N530 for lighter bullets N140/N150 for medium to heavy bullets and N550 for maximum velocity long range loads.

375rum, what do you mean , 500 series needs high pressure?

How high? Chamber pressure? Like max/stiff loads.

I thought id use it in a 6.5x55 with 140- 155gr, and 270 to start maybe a 200gr 3006 load

have been using N-560 in my /06AI and haven't been able to find anything that would outperform it until friday when i introduced myself to ramshot hunter.
regardless the 560 is a really good powder

b h

Using 550 in my 375 with 270gr tsx, was using 160 but was a little to slow burning. Meters better than Varget, and has been much cleaner than RE15. 84.5 of 550 is giving me 2660 fps. will be using VV powders in all of my rifles in the future.

I tried 560 in my 300WSMs. Accuracy and velocity were excellent, but not as good as Ramshot Hunter. I also tried it in my Swedes, again excellent, but not as good as DP 86. I really like N-130 in my 7.62x39.

I read somewhere, maybe here, that the 500 series is hard on throats and barrels.

quote:

Originally posted by GSP7:
375rum, what do you mean , 500 series needs high pressure?

How high? Chamber pressure? Like max/stiff loads.

I thought id use it in a 6.5x55 with 140- 155gr, and 270 to start maybe a 200gr 3006 load

I've had best luck with pressure in the range of 55-60k (near max in modern calibers) with the VV 500 series in most calibers I've tried.

quote:

Originally posted by steve4102:

I read somewhere, maybe here, that the 500 series is hard on throats and barrels.

Compared to VV's N100 series the 500 series probably are a little bit harder on the throat, but that's because it's double based, and double based powders usually generates more heat in the initial stage of combustion. This would apply to most double based powders.

560 is the most accurate powder I tested in my 300WM rifles and 180 grain bullets.

Works very well in my 22-243 and heavy bullets..

what about VV165? you think it can deliver the same speed at equal pressures?

montero

quote:

Originally posted by montero:
what about VV165? you think it can deliver the same speed at equal pressures?

montero

No

quote:

Originally posted by 375RUM:

quote:

Originally posted by montero:
what about VV165? you think it can deliver the same speed at equal pressures?

montero

No

IMHO generaly not BUT there are occasions where a single base powder is so absolutely idealy suited to the calibre/bullet weight that it can surpass a high energy double base powder in MV.

I surmised that when this happens the single base powder has a better area under the pressure time graph despite the extra energy available to the double base powder.

When the double base powder is idealy suited then velocities can really take off!

I was just reading in the speer manual. Just a few here that I remember

R15 is double base

These are single base
R22
R19
Imr & H 4831
IMR & H 4350
Imr 4895
IMR 3031

Correct me if Im wrong on above

Ill have to go open the book again and make a
list. It would be nice to have next to my burn rate charts.

I didnt see any imfo on the hodgdon site about which of their powders are double or single base, the speer book did though

quote:

Originally posted by GSP7:
I was just reading in the speer manual. Just a few here that I remember

R15 is double base

These are single base
R22
R19
Imr & H 4831
IMR & H 4350
Imr 4895
IMR 3031

Correct me if Im wrong on above

Don't know about the Imr powders, but Alliant Rl15-25 are made in Sweden by Bofors and they are all double based.

Just got a reply back from Alliant powders, Yep all Reloader powders are double based .

looks like all Hodgdon extremes are single based and thier ball powders double based

I've used Vv560 and 550 and they are good powders - 560 is rougly equal to Re22 but a bit faster, 550 is roughly equal to W760. I don't think they offer much more than their equivalents, but Vv570, which is in the pipeline, could be a realistic replacement for H870 - but, that is 870 with an "attitude." I'm looking forward to getting some!

This is my most accurate rifle.If fed VV560,it will no doubt break all world records![URL= ]shooting star[/URL]

GSP7,

Yup, I'm using VVN560 in my .243 Win. w/ 85 gr. Nosler Partitions, 7X57R w/several bullets, 7X64 w/154 gr. Hornady RN's and tried it in my .30/06 Sprg. w/165 gr. Nosler Partitions and CT Ballistic Silvertips.

Haven't chrono'd any of the loads but the accuracy was fantastic with every load tested and for the 7X57R, 7X64 & .243 Win. just decided to stay right where I started since the loads gave somewhat enlarged bullet holes in the targets as 3 shot groups. Also burns very clean.

VV powders are the easiest for my to obtain here and I like them. I like the idea of the 1 Kg. bottles since after a load is worked up there's still enough left over so you don't have to run down and purchase another batch.

I'm using VV N130 in .222 & .223 Remington, VV N140 in .308 Win., 8x57IS, & 9.3X62, and VV N160 & 560 goes into pretty much everything else, .243 Win., .270 Win., 7X57R, 7X64 .30/06 Sprg. & 7mm Rem Mag.

The only carrtidge I haven't tried VV's in yet is the .375 H&H; they still get my carefully hoarded supply of H-4350.

I'll throw in a dissenting opinion. I have tried N560 in a 300WSM (150-200 grain) and 280 Rem (140-160 grain) with various bullet weights, 7 combinations all told IIRC. None gave better than mediocre results and velocities were disappointing. I could better accuracy and velocity with H4350 or H4831 in both rifles. The granule size and shape (short and fat cylinders) also proved very prone to bridging in my equipment, making it hard to work with.

It is also only available as a 2 lb can...pricey for an experiment. As you can see here lots of people have great results, but I am disappointed. I love N340 for pistols and run through a lot of it, but I will not buy N560 again. As always, every gun is a story in and of itself, so YMMV.