Projectile RPM limits...

[dashooter]

I have a video and still shot of a friend shooting his 20-250AI shooting 55gn projectiles and watching them turn to grey mist cloud at about the 20m mark.

This is the saddest post I have ever read


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Don't cry mate, at least he figured out why the Bergers were vaporizing, exceeding the max recommended velocity according to Berger.

I’ve got them going at 3880. Where does Berger say to stop?


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Should be able to get to 4200 fps and still hit rabbits at range Trev based on testing done in September. That’s out of a 1:9 twist barrel.

You talking at about 55 gn 20 cal pills?


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Nope. 30gn .224 cal Bergers.

[frl0173]

I have a video and still shot of a friend shooting his 20-250AI shooting 55gn projectiles and watching them turn to grey mist cloud at about the 20m mark.

This is the saddest post I have ever read


Sent from my iPhone using Tapatalk

Don't cry mate, at least he figured out why the Bergers were vaporizing, exceeding the max recommended velocity according to Berger.

I’ve got them going at 3880. Where does Berger say to stop?


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So according to the email he received from Berger the limit is 3800fps. The day I took the footage he was seeing 4400fps on the CED chrono and it was approx 1 in 3 that were turning to dust, he is now running approx 4150fps and they seem to be holding togeather.

Oh and yes Trev it is the 55gn .20 cal Bergers

[trevort]

I have a video and still shot of a friend shooting his 20-250AI shooting 55gn projectiles and watching them turn to grey mist cloud at about the 20m mark.

This is the saddest post I have ever read


Sent from my iPhone using Tapatalk

Don't cry mate, at least he figured out why the Bergers were vaporizing, exceeding the max recommended velocity according to Berger.

I’ve got them going at 3880. Where does Berger say to stop?


Sent from my iPhone using Tapatalk

So according to the email he received from Berger the limit is 3800fps. The day I took the footage he was seeing 4400fps on the CED chrono and it was approx 1 in 3 that were turning to dust, he is now running approx 4150fps and they seem to be holding togeather.

Oh and yes Trev it is the 55gn .20 cal Bergers

I missed lots of rabbits at the last Yassathon but on one particular shot the wood whispering like minded people gatherer swore he saw a blow up. I’m hoping it was just his hangover but the bugger has got me worried


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