I have a Ruger Mk11 S/S in 243, and want to use VV N165, starting at 43 grain load, using HDY 100SP's. These shoot well with an Aussie powder called AR2213SC (good with medium to heavy bullets in standard calibres, and all-round use in large magnums). N165 is very close in burning rate,if anyone used this would apppreciate some feedback

I use VV powders, and am quite happy with them...

You can download their latest data manual from their website in Adobe format..

Vithavouri makes very good powder in my opinion. Never encountered any problems with them during my 15 years as a reloader. Im not an extensive reloader but it is the most commonly used powder here besides Normas so I take my buddies experiences with me here.
Never loaded a 243 but 7mmm rem mag and 6,5x55 works the N-165 just fine.

Uhmm just noticing that the recommended starting load in .243 win and a100 gr hornady bullet is 44 grains N-165 and the maximum is 49,2 according to their data. But Ive only made a quick check so you had better looked yourself.You probably have it already but here is their datahttp://www.lapua.com/

Tell how it works out
3D

The reason I use the slower powders, is that the 100gr will group a lot better with a slower powder, 90gr like a slightly faster powder, this I can tell you is after a lot of experimentation with this rifle.

A friend of mine had a 22-250 that wat incredible but when bullet weight increased it failed. We all thouhgt it was the weapon and twist and stuff. Maybe we should have tried other burnrates before he sold the gun.

You were probably right the first time. The standard twist for a .22-250 is 1:14, which is great for 55 grain bullets - but real shakey for bullets over 60 grains (depending on length). If you tried the 69 gr. Sierra, for instance, it didn't group well because of twist - not burning rate.

Simo, I have foundAR2209 is "THE" powder for85-90gr projectiles. Is that what you use?

I have used AR2209 with 90gr Speer SP's, very accurate, as soon as I use AR2209 on 100gr, the groups opened up substantially, a mate a the range told me to use AR2213 (now AR2213SC), and it solved the problem, bullet seating and OAL were exactly the same, it seems the slower powder just works better. I have a KG of N165 that a mate uses in his 7mm Rem Mag, hence my questions here, can the N165 be used in the same way AR2213 has been used with the 100gr projectile. It has a similar burning rate.

Sorry about delay on this, Yes I use AR2209 for 87 & 90gr projectiles,but could not get a decent group out of this powder for the 100gr projectiles, I use AR2213SC, the groups just closed up real good, N165 is a similar powder, slower burning rate, so I thought I would check out whether anyone has used this

We keep trying to tell ourselves that to make us feel better. Thanks for your support. Sorry about the high jack!