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Feegee Dean Matlock

Why don't open shooters use heavy grain bullets?

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I have a CZ Czechmate and all the data I have looked at don't really say anything about ammo over 125gr, and was just wanting to know why? Sorry in advance if this is a stupid question.

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The big difference with an OPEN gun is the compensator ...

To make the comp work efficiently, you want a LOT of GAS produced.

That means that the more powder you use, the more gas ...

You get to use more powder with lighter bullets. :cheers:

Some people do use heavier bullets - but most use light

bullets and heavy loads of slow powder to produce a lot of gas.

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I used to run lighter bullets in my Czechmate but after speaking to a top Aussie shooter who's got one I'm going to try 150gn's. He felt that it that particular gun that the heavier bullets would work.

Sent from my iPhone using Tapatalk

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Secondly, the heavier the bullet the more recoil. Recoil is what you are trying to get rid of. Why add more?

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I have been shooting open for just a little bit now and love it, but still trying to get the dot to move just that right amount. I think I will just stick with the 115, and 124's thanks for the info.

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Feegee,

I experimented with 147 bullets but there aren't many powders that will make Major safely. All seemed to kick way more then necessary.

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Gas is what makes comps work. Less bullet, more powder, more gas

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I shoot 700X out of a 38SuperComp gun with a 147Grn bullet and it feels light and muzzle rise is such that the dot moves within the glass by what appears to be an inch or so. Video's show almost not perceptible muzzle rise. Feegee has shot my gun so he can comment on the feel. I do have the PT S/S grip so that does help with felt recoil.

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The statement the heavier the bullet the more the recoil is not true. Recoil is a combination of bullet mass and bullet velocity. In non comped guns you actually get less perceived recoil using heavier bullets to get the same power factor as lighter ones.

Pat

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