LOVECKÉ FÓRUM / MYSLIVOST

pufr píše:...Jak jsem nedávno psal, i u RS prachů (konkrétně RS70) semi podařilo "narazit" na šarži, která je na úrovni Pmax už při počáteční náplni ...

pufr píše:Vím, že je opruz to hledat, formulovat a pak ještě vysvětlovat (úmyslně nepíšu "obhajovat"), ale nebylo by s odstupem nějaké číslo - třeba jen jako příklad?
(mluvil jsem o tom - po Tvém upozornění - i se střelci, kteří leží za svými "taktikami i F-class" dá se říct téměř denně a zatím jsem na podobně striktní názor nenarazil, ale v česku jsou RS běžné vlastně druhý rok ...)

For those in the States, Reload Swiss RS60 and Alliant Reloder 17 are one and the same thing in different packaging. I'm not surprised the OP got the 162 AMAX up to 2,800 fps with it - it really is the best velocity generator around in its burning rate group. Equally, though I'm not surprised that something suddenly changed and the groups went belly-up. I've seen it so often with RS60 / Re17 - fantastic groups then one day the heavens fall in for no apparent reason. (284 Win is very prone to Re17/RS60 collapse syndrome IME.)

I've deliberately kept away from this powder in my 7-08, partly because of the inconsistency factor, also because if its performance if fully used it is a barrel killer par excellence.

So far as European powders go and for the 168gn SMK, you'll likely find it hard to beat Reload Swiss RS62, same general burning rate as RS60, but single-based and longer grained. It is a very good performer in the mid-size 6.5s and 7s combining higher MVs than H or IMR 4350 can provide and usually good groups and MV consistency (although nothing in this world is certain and especially not in handloading). You won't get the same MVs as with RS60, but it'll match all but a few other 'high-energy' types such as the Viht N500 series and won't give much away to them anyway. It is a much more tolerant propellant than RS60 in my experience to date.

So far, I've found QuickLOAD to be fairly reliable with this powder, unlike some in the Reload Swiss range where I'm very cautious indeed as to its computations, finding that actual pressures turn out to be much higher than predicted. (That reliability / accuracy from the program is for other cartridges though as I've yet to try RS62 in the 7-08.)