So far less than 200 rounds. So time will tell...
James
So far less than 200 rounds. So time will tell...
James
Twist rate shouldn't be an issue. More twist is needed for Longer bullets, not heavier bullets. Granted, a 60 gr bullet in rimfire will be a little longer than a 40 grain, but nowhere near the length of an M856 (for example) in the centerfire realm.
In other words, 1/7 twist is needed to stabilize a bullet that is longer than the entire length of the rimfire cartridge (case included)
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
I haven't tried it in my 1/7, but it worked fine in my 1/9. Accuracy was about the same as the much cheaper stuff though. Probably because of the twist rate. If I don't forget, I'll try some in my 1/7 LMT sometime this week.
One thing I did note: the lower receiver/trigger group was gnarly with grit and unburned powder after firing a few rounds of the Aguila. That didn't occur with any other rounds tested.
1/16 twist is commonly used for .22LR. Barrels made specifically for the 60 gr. SSS are typically 1/9.
My Spikes Conversion with 1/7 barrel is pretty accurate with Aguila SSS. It'll hold an 1" at 25yds using iron sights.
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