Difference in blast/sound, 115gr vs subsonic?

[Orion8472]

When you are shooting a semi-auto pistol, what difference [if any, noticeable] in sound to the shooter will there be between 115gr and subsonic 147gr?

 

[Texas10mm]

What flavor is the sky?

 

[Orion8472]

Ummm....the letter "B"?

 

[Jim Watson]

Cute, guys.

I find the 115 gr to have an unpleasant "Crack!" report, even through muffs and a sharp recoil.
My 147s have less report and moderate recoil.

 

[Orion8472]

Thanks for the input, Jim!

 

[Texas10mm]

Cute, guys.

I find the 115 gr to have an unpleasant "Crack!" report, even through muffs and a sharp recoil.
My 147s have less report and moderate recoil.

That "crack" is likely the sonic boom. Something you don't get with 147s.

 

[Jim Watson]

Probably, even a 124 is milder to shoot <1100 fps.

 

[ATLDave]

There is a measurable, real difference. Whether it matters to someone is kind of subjective and personal. But it's taken as a given among competitive USPSA/IPSC shooter that 124's-and-up are preferable for combined accuracy and speed (where recoil control is a major factor).

 

[JR24]

Between the two, with protection on?

Can't say as I notice much difference in sound, certainly in recoil sure.

 

[Orion8472]

Yes, with ear plugs/muffs. More interested in how much sound/blast to the shooter. Thanks.

 

[pblanc]

I haven't noticed much difference in the report of 115 grain versus 124 grain versus 147 grain 9 mm Luger. Can't say that I have really thought about it. Anything that goes supersonic is going to make that crack sound, even 22lr. I guess I don't find that too unpleasant.