For the enthusiast of Blaser and other firearms related to the Blaser family, such as Mauser, Sauer, Rigby, and other fine European sporting arms.
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There are two distributors of Hornady in Australia, Herrons, based in Sydney, & Outdoor Sporting Agencies, in Melbourne.Spartan wrote: I have been trying to get the Superperformance Hornady ammo for my 7mm-08 for months without any success. Anyone used this ammo (or the Hornady Light Magnum ammo)?
Yes, I bought several boxes for my Sako 7mm-08 Finnlight and got great groups at 100 yds. with a 20 7/8" barrel. Recently got some in .300 winmag to try with my R93.I have been trying to get the Superperformance Hornady ammo for my 7mm-08 for months without any success. Anyone used this ammo (or the Hornady Light Magnum ammo)?
Dunno about nitroglycerin content of the superformance powder, but i do know it isn't a "fast powder" in the traditional sense. In fact, it is kinda a slow powder. It has a broad range of different burn rates, so that rather than getting a single peak at one given point of time, you get a range of rates of combustion over a much longer period of time than a conventional powder. With a conventional powder, you get a single spike in pressure at a given point in time, which must be kept below SAAMI or CIP specs. Even with a slow powder, you still get a spike, it just occurs later and lasts a bit longer. All acceleration of the projectile is over very rapidly. With superformance, you get up to that pressure point very fast, and instead of it falling away exponentially, you get a long plateau. This tends to maintain the acceleration of the projectile for much further down the barrel, hence the extra velocity without extra pressure. The peak pressure is the same, but it is maintained much, much longer. It shouldn't wear barrels more. In fact, if you just used the powder to duplicate loads that you already have, you will use less powder, and generate lower pressures. Well that's the theory. Real world experience is often a little different!Corjack wrote:The problem with fast powders, are they have a high nitroglycern content, and are hard on barrels.
By fast powder, I meant a high energy, double base powder.Mackensie wrote:Dunno about nitroglycerin content of the superformance powder, but i do know it isn't a "fast powder" in the traditional sense. In fact, it is kinda a slow powder. It has a broad range of different burn rates, so that rather than getting a single peak at one given point of time, you get a range of rates of combustion over a much longer period of time than a conventional powder. With a conventional powder, you get a single spike in pressure at a given point in time, which must be kept below SAAMI or CIP specs. Even with a slow powder, you still get a spike, it just occurs later and lasts a bit longer. All acceleration of the projectile is over very rapidly. With superformance, you get up to that pressure point very fast, and instead of it falling away exponentially, you get a long plateau. This tends to maintain the acceleration of the projectile for much further down the barrel, hence the extra velocity without extra pressure. The peak pressure is the same, but it is maintained much, much longer. It shouldn't wear barrels more. In fact, if you just used the powder to duplicate loads that you already have, you will use less powder, and generate lower pressures. Well that's the theory. Real world experience is often a little different!Corjack wrote:The problem with fast powders, are they have a high nitroglycern content, and are hard on barrels.
