Test targets

[allanschisel]

I purchased a CZ75BD in 9mm. Broke it in and it is very accurate. I just got a CZ75B in 40 S&W, but have not shot it yet. I was looking over the stuff and comes with the guns which includes a photo copy of a target shot by each gun. At 25 meters, the 9mm shot a 3" group. The 40 S&W shot a 7.7" group. Is that normal? Did I get an inaccurate 40 S&W? Both were shot with S&B ammo, no bullet weights were given. Is this a bad grouping for the 40 cal? Bad enought to send it back before I shoot it? I thought a difference in bullet weight could improve accuracy also, but why would CZ use a bullet weight that shows the gun to be less accurate than it could be? Including a test target is a great selling point, but not if it shows the gun to be less than what it really is.

TIA
Allan Schisel

 

[bpisler]

Are you sure the measuments are inches and not metric,i just bought a CZ 75b S/A,on the test target the wording on one side had been changed to english but the measuments were still in cm's.BTW my target shows a 6 cm group at 25 meters.

 

[allanschisel]

They are given in cm, but I converted them to English. I think it's 1.54cm = inch.
Allan Schisel

 

[MessedUpMike]

CZ test with S&B ammo because the S&B plant is just down the road from CZ. Most people feel the guns fire more accurately than they do so I can't comment to much on spacing. IIRC they're fire from a bench rest position as opposed to a vise rest. there may be some movement by the shooter during the test. Try shooting it first and if it seems that awful contact the guys at CZ USA and they'll help you out.

 

[Walt Sherrill]

As already noted, the guns are tested from the bench and not from a vise or Ransom rest. Four or five people do the testing.

I suspect that by the end of the day, the groups get a lot worse.

In nearly every case I know of, the guns shoot far better than the test targets.

Shoot it and THEN worry about it.

(The test is probably more for function than a measurement of accuracy. If the accuray is really bad, the gun probably goes back for repair.)

 

[mrtgbnkr]

Allen,
Just one thing...its 2.54 cm/in re-calculate your math and you may find that things aren't as bad as you though. I took the 7.7 you gave us as the inch conversion, multiplied by 1.54 (which you used), then divided by 2.54 = 4.67"

Hope that helps a little.

Mark

 

[Al Thompson]

I've also noted that ball ammo tends to be less accurate than JHP ammo. If it's for serious use, youu'll want to evaluate JHPs anyway. I think there's a good chance thatt the pistol will tighten up when you switch loads.

 

[allanschisel]

mrtgbnkr, thanks for correcting my screw up. Always did hate making those conversions. Sounds like a decent shooting pistol to me now.
I did notice my 9mm is more accurate with CorBon hollow points than the cheap WalMart FMJ I broke it in with.
Thanks,
Allan Schisel

 

[Al Thompson]

Allan, I've had sterling results from Georgia Arms Gold Dot loads for years. You may want to try some.