I picked up a case of this stuff back in 2003
Don't have much trigger time behind this ammo but I can tell you the bolt was often sticky extracting and about 50% of the cases had split necks. I stopped shooting it until I knew more about it. Turns out after a web search that I wasn't the only chap that was having this proble,. Some rounds were pretty hot in the recoil department and some were fairly mild.
Groups were about 5" at 100 metres in an Izzy 91/30.
The following may help to understand why.
According to7.62X54R.net this ammo has a muzzle velocity of 2710 fps +/- 24 fps. That's pretty fast - almost .30-06 territory.
I pulled the bullets from 22 samples and measured bullet dia., powder charge and bullet weight.
Powder Charge: 47.66gr +/- .495gr
Highest charge was 48.3gr and the lowest was 46.7gr of extruded cylindrical powder.
Bullet weight was 182.11gr +/- 0.81gr (that's a huge standard deviation)
Heaviest bullet was 183.0gr and the lightest was 181.2gr.
Bullet diameter was very consistent at 0.3109"
SD was negligible and not worth mentioning.
So, a five inch group starts to make sense now.
I don't think pulling bullets and reloading them will significantly reduce groups but I'm going to try.
RC
I just discovered that this powder pic makes for a great desktop back ground too
Don't have much trigger time behind this ammo but I can tell you the bolt was often sticky extracting and about 50% of the cases had split necks. I stopped shooting it until I knew more about it. Turns out after a web search that I wasn't the only chap that was having this proble,. Some rounds were pretty hot in the recoil department and some were fairly mild.
Groups were about 5" at 100 metres in an Izzy 91/30.
The following may help to understand why.
According to7.62X54R.net this ammo has a muzzle velocity of 2710 fps +/- 24 fps. That's pretty fast - almost .30-06 territory.
I pulled the bullets from 22 samples and measured bullet dia., powder charge and bullet weight.
Powder Charge: 47.66gr +/- .495gr
Highest charge was 48.3gr and the lowest was 46.7gr of extruded cylindrical powder.
Bullet weight was 182.11gr +/- 0.81gr (that's a huge standard deviation)
Heaviest bullet was 183.0gr and the lightest was 181.2gr.
Bullet diameter was very consistent at 0.3109"
SD was negligible and not worth mentioning.
So, a five inch group starts to make sense now.
I don't think pulling bullets and reloading them will significantly reduce groups but I'm going to try.
RC
I just discovered that this powder pic makes for a great desktop back ground too
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