Hi,Does anyone tried it with really heavy Pellets?

Hi Alvin.

I have one in .177 cal. and I shoot crosmen Premier 10.5 gr. Ultra Magnum. I get 1025 f.p.s. velocity. The weather has been real cold and lots of snow. I live in Canada. Have not had much of a chance to test for accuracy, but what i did shoot at 25 yds. 1 1/8" with iron sights. HTH Regards Benson

Hi Benson,thanks for your response,because I'm planning to get one in the same .177 cal.
1025 f.p.s. velocity is really high with 10.5 gr. but what I'm really worry about is the turbulence in the sonic barrier; people said that the pellet tumble and is destabilized when break the sound barrier[speed of sound is 1050 fps ];what about the noise?

Hi Alvin

The noise is about like the Diana 350 48/52. That is with heavy pellets. NOT TO BAD.

Benson.

Hi Benson,thanks for your Help.!!!!!!!!