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My brother and I have been using Reloader 22 for some time in 7mm Rem Mag, .270 Win and .270 WSM with good results. However, our current stock is all but exhausted and leading up to last Christmas we were told that new supplies could be expected around May this year. A further call today to one of our leading reloading equipment suppliers has revealed that the delivery date is now likely to be the end of this year. Consequently we're considering using Vit 560 as a substitiute as Vit powders are generally more readily available over here. We would welcome feedback (good or bad) from any of you that have used Vit 560 in the calibres mentioned above. Later this year .300 WSM will also be added to the list of calibres. Thanks, Tim | ||
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Tim, I think you'll find VV165 closer to RL22 than VV560. I am currently working w/ some VV160 in my .260 & .280, it's showing promise. On this side of the pond though, it's pricey & sometimes difficult to get all of the VV powders I have tried are amazingly uniform. LIFE IS NOT A SPECTATOR'S SPORT! | |||
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Tim, I currently use N560 for the 270 WSM with very good results; it's a powerful powder that gives high velocities....and a big muzzle flame  | |||
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Tim,I used it in my 300WinMag and it outperformed other the powders.It did not perform well in my 7mmRemMag,instead R22 was better. | |||
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How large are the powder granuales of VV 560? Is it large stick or closer to ball? Thanks. | |||
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Tim, I have to admit I've become a big VV N-560 fan. I've used VV N-160 as my go-to powder for years (like yourself; due to availability) and found it excellent. RL's though aren't common where I shop here in the Fatherland so cannot comment on their performance. Then I started fiddling around with some VV N-560 loads in .243 Win., .270 Win., 7x57R, 7x64, 7x65R, .30/06 Sprg. and 7mm Rem. Mag. and found it in almost every case to be a touch more accurate (with the specific bullets I'm using in loads) than VV N-160 and equal to or if not better than my old standby's with IMR or H-4350 & 4831. I've no experience with VV N-165 since it's not particularly easy to obtain (at least not on the specific day I'm purchasing powder or when trying to organize a powder purchase) but my QuickLoad keeps telling me I need a larger case to accomodate it's potential, so haven't tried. While I don't have access to a Chrono all the times I'm shooting at the range; I cannot state specific velocities of the loads but found the accuracy of VV N-560 in the cartridges noted above to be outstanding. Like fredj says above, the VV powders I've used are very uniform, meter & measure easily, and are clean burning - good stuff. Ken, VV N-560 are small enough granules, easy to work with, note above. Cheers, Number 10 | |||
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Very short stick or cylinder,identical to Varget. | |||
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Tim, I have used quite a bit in 270 Win and 270 WSM with good results. In the 270 WSM it is fast and very consistent. In the regular 270 it isn't quite as fast as my other three main powders, which in order of speed--fastest to slowest are 1: Re22, 2: IMR 4350 3: H 4831SC--the 4831SC is the most consistent and accurate for me in 270 Win. The 560 has extruded kernels (sticks) that are similar to 4831 SC. It is very clean burning, which all the VV powders are IME. I think the 560 is a good choice for the situation you described. | |||
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l spoke to my gunsmith about N560/540 for the 7-08 he's doing for me. But he said to lay off it as it can cause a lot of throat damage due to it being a strong double base powder. Any one have any other info on this... Now looking at N140. Regards. Dave. .... | |||
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I've used VVn560 quite a bit. It's a double-base, high-energy powder with a burn rate similar (or slightly faster)than Re22 or MRP. Like VVn550, IMO, its greatest attribute is its high load density. For example, I can get 72.5 grs of VVn560 in my 30-06 AI, and behind a 150 gr NBT with a 26" barrel I'm getting 3325 fps - but that's MAXIMUM (~65,000 PSI). It compresses well, without ill effects. VVn560 is a very good powder in medium capacity cases with medium weight bullets, but I'm going to use it in my .375 H&H Ackley Improved behind 250 and 270 grain bullets. I'm very excited about the new VVn570, which should be perfect for my 300 Win Mag, behind 180s or 200s. Unfortunately, the stuff is not available in the USA. | |||
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I agree with Fred. N-165 has been my "go to" powder for my .270WSM since I got it. I found it to be nearly identical in burning rate to Reloder 22, but more consistent. The only problem with it is that it can be tough to locate locally, and it is 15 to 30% more costly than other powders over here. I have never tried any of the N-5XX series powders, although I have heard good things about them. For your cartridges, I would suggest you try some N-165 (or even N-170) and see how it works. I am very confident that it will work extremely well in the 7mm Mag and .270WSM. N-160 or N-560 might prove to be better in the standard .270 Win, but I am equally confident that N-165 would give satisfactory, if not optimal results. Good luck, and let us know how it works out. Bullets are pretty worthless. All they do is hang around waiting to get loaded. | |||
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Blimey, thanks for all the positive replies. It sounds like we won't be able to put a foot wrong and we have an exciting time ahead. Apart from Dave does anyone have any negative comments!!? Thanks and regards to all. Tim | |||
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Does anyone have any pet loads for a 270 WSM with either 130 or 140 grn bullets using Vit N560 that they would be willing to share? Many thanks | |||
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Tim1- not a negative regarding the N560 I was very interested in using it for my 7-08 but it was my gunsmith who advised against. ATB Dave | |||
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I too was warned of this when I was planning on using N550 in my new 6.5x55. I rang the factory who said it was an old wives tail. I used about 3lbs of it and noticed considerable roughening of the first 4-6" of the bore. The local smith commented that the rifle had a considerably worn throat.... This is the only rifle that this has occured with so I don't use double base powder in any of my customs. I don't take it as gospel as for the first 100rounds I used a copper cleaner that didn't clean copper (Parker Hale....) but if you look at a number of publications and talk to reputable smiths the evidence stacks up that double base powders wear barrels quicker. If you have more than one rifle, shoot mainly deer and are over 40 it's probably not going to affect you in your lifetime but given that there are so many great single base powders out there why bother if it's a good custom barrel. | |||
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Thanks for the advice '94. Although we don't quite satisfy all three of your criteria I doubt it will lead to any serious problems. In any event it's too late now as we just got a tub of 560 to try from Tim Hannam. Dave, if you're looking for a powder for your 7-08 I would consider Vit 140 it's given us great results in .22-250 and .308. I would hope it does a similar job in 7-08. Regards, Tim | |||
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Tim1. Yes mate, l think N140 will be the ticket with the 120's to 140's anything bigger and l'll look at N160 which was my load for the .243 and 87 v-max's (bldy lethal on everything it shook hands with). Rifle should be done this week, so l'm gettin' a bit twitchy in the startin' blocks. All the best. Dave. .... | |||
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This is a really interesting answer that I've just received from Finland: ....We are happy to be able to supply reloading powder for all quality concerned shooters like you. Bore and throat erosion is really dependent on powder composition. The important parameter is flame temperature, which is unfortunately immeasurable quantity. Based on thermodynamic calculation, and long experience it is well known fact that higher energy content (i.e. heat of explosion) leads to higher flame temperature and higher throat erosion. Easiest method to improve ballistic performance is to add nitroglycerol in powder composition. These powders are called double base powders. As you have heard, these powders tend to cause more barrel and throat erosion compared to single base powders. This difference is clear but it is, however impossible to quantify as for example as numbers of rounds to reach same erosion level. All Vihtavuori N100 (N105...), N300 (N310...) powders, 3N37 and 3N38 are single base powders. These products are made with best available raw materials and manufacturing methods to get maximal performance you can get without using more erosive double base composition. Therefore, these Vihtavuori products cause less erosion than most of other competing powders. Especially high nitroglycerol contents (and thus erosion) are used in spherical powders (ball powders) and some US products. Among Vihtavuori product line we have only five types we call N500 (N530 ... N570) which are by composition double base powders. N500 rifle powders contain small amount of nitroglycerol to add a bit more performance required mainly for extremely long distances. Even with these products we have added a special additive as well kept nitroglycerol content rather low in order to minimize the barrel erosion effect. So, my opinion and advice is to keep barrel and throat erosion on minimum by using only single base powders like Vihtavuori N100, N300 and 3N. Best Regards, Mikko Vuoristo EURENCO Vihtavuori Oy I will try to reduce the use of my beloved Vith. N560....  | |||
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RL22 is very nearly the same powder, and made in the same factory as Norma MRP. If you could get MRP on a reliable basis, you might try it. Geo. | |||
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Very Very interesting! Wish they'd said that in 99! | |||
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