Superpipe9 Posted July 15, 2015 Share Posted July 15, 2015 what do you guys use and think is a better round for the cz 75 sp-01 shadow. 135 gr or 147 gr bullets? Link to comment Share on other sites More sharing options...
zzt Posted July 15, 2015 Share Posted July 15, 2015 I think there will be very little difference. I preferred 124s for general target and competition and 147s for uncalibrated steel that had to get knocked down and pins. If I were only going to load one bullet, I'd compromise on the 135 at around 140PF. My 9mm had a definite preference for 124s over 115s. If it didn't, I'd load 115s at 132PF for anything USPSA or paper targets or SC and factory 147s @ 144+PF for pins or uncalibrated steel. Link to comment Share on other sites More sharing options...
andrewtac Posted July 15, 2015 Share Posted July 15, 2015 I use 160s Link to comment Share on other sites More sharing options...
kneelingatlas Posted July 15, 2015 Share Posted July 15, 2015 Which powder are you loading? Clays works better with 135s in my experience. Link to comment Share on other sites More sharing options...
Magsz Posted July 15, 2015 Share Posted July 15, 2015 I think kneelingatlas touched on a good point. There are really two criteria here to discuss. 1. Which powder are you using? 2. Whichever round YOU end up liking better. No one can tell you which one is "better". Link to comment Share on other sites More sharing options...
pmt Posted July 15, 2015 Share Posted July 15, 2015 124. Link to comment Share on other sites More sharing options...
MilkMyDuds Posted July 15, 2015 Share Posted July 15, 2015 In Ben's podcast, Mink talked about the best bullet weights for CZs. He shot 125gr for many years, and recently years he switched to 147gr for the feeling. He said anything from 124gr to 147gr would shoot accurate enough for competition, but real decision is based on shooter's personal preferences. Sounds like the lighter bullets would be more snappier but would shoot flatter, while the heavier bullets will be soft shooting with more lift-ups. Personally I shoot 147gr (but in my MP9s, still waiting for my CZC gun) and I do plan to continue using 147gr with CZs when I get it. Link to comment Share on other sites More sharing options...
JRM83 Posted July 16, 2015 Share Posted July 16, 2015 With N320 147s shot a bit more accurate and a bit softer in my Shadow. Link to comment Share on other sites More sharing options...
wtturn Posted July 16, 2015 Share Posted July 16, 2015 In Ben's podcast, Mink talked about the best bullet weights for CZs. He shot 125gr for many years, and recently years he switched to 147gr for the feeling. He said anything from 124gr to 147gr would shoot accurate enough for competition, but real decision is based on shooter's personal preferences. Sounds like the lighter bullets would be more snappier but would shoot flatter, while the heavier bullets will be soft shooting with more lift-ups. Personally I shoot 147gr (but in my MP9s, still waiting for my CZC gun) and I do plan to continue using 147gr with CZs when I get it. IIRC, Mink actually stated he preferred the "feel" of other bullet weights but the performance of the 147gr was better for him, so he uses that despite the feel. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted July 16, 2015 Share Posted July 16, 2015 Order 500 of each, and try them - see which YOU prefer, in your gun. Link to comment Share on other sites More sharing options...
kneelingatlas Posted July 16, 2015 Share Posted July 16, 2015 Order 500 of each, and try them - see which YOU prefer, in your gun. I agree, let me know if you want to buy some small sample packs, I have all kinds of bullets from 95gr to 160gr. Link to comment Share on other sites More sharing options...
Utah Shooter Posted July 16, 2015 Share Posted July 16, 2015 Order 500 of each, and try them - see which YOU prefer, in your gun. I agree, let me know if you want to buy some small sample packs, I have all kinds of bullets from 95gr to 160gr. Nice of you to offer. Link to comment Share on other sites More sharing options...
d_striker Posted July 17, 2015 Share Posted July 17, 2015 I think there will be very little difference. I preferred 124s for general target and competition and 147s for uncalibrated steel that had to get knocked down and pins. I've heard a couple other people mentioning that they prefer heavier 9mm bullets to calibrate poppers. Why is this? Shouldn't a 147 loaded to 125PF be the same as a 124 loaded to 125PF when calibrating? Link to comment Share on other sites More sharing options...
Smitty79 Posted July 17, 2015 Share Posted July 17, 2015 I think there will be very little difference. I preferred 124s for general target and competition and 147s for uncalibrated steel that had to get knocked down and pins. I've heard a couple other people mentioning that they prefer heavier 9mm bullets to calibrate poppers. Why is this? Shouldn't a 147 loaded to 125PF be the same as a 124 loaded to 125PF when calibrating? Bigger slower bullet will have more energy transfer. For the geeks in the crowd, there's more energy in the center of mass reference frame. Link to comment Share on other sites More sharing options...
Vanniek71 Posted July 17, 2015 Share Posted July 17, 2015 I run 125's and they seem to work just fine. I like the feel of 147's better, but I have a ton of 125's so will shoot those for now. Like Kneelingatlas said, get a few hundred of each and try them out and see what works best for you. That's what i did when I first got my CZ's Link to comment Share on other sites More sharing options...
Smitty79 Posted July 17, 2015 Share Posted July 17, 2015 Has anyone ever seen a flat point 135? I really prefer trying to score flat point holes. Link to comment Share on other sites More sharing options...
zzt Posted July 17, 2015 Share Posted July 17, 2015 d_striker, the energy transfer answer is correct, but only half of the answer. Speed is the second half. When you have to knock a steel target down to activate another target, it takes time to fall. If there are no nearby targets you can shoot while you are waiting for activation, you are just adding to your overall time. If it is a "show once" target, you stand there and wait. The heavier the bullet, the faster the energy transfer and the faster the target falls. The factory 147gr 9mm load I used to shoot was 144PF. The 180gr 140PF 40 load I now shoot has less energy, but knocks steel down with much more authority and speed. The same is true for pins. You have to clear the pins and it doesn't count until they hit the ground. There is a reason the 230gr TC bullet is called the pin bullet. My 40 Major load is 180gr @ 172PF. My Major 45 load is 200gr @172. I use both for hostage pin matches, and almost always do better with the 45. Link to comment Share on other sites More sharing options...
Stuey Posted July 17, 2015 Share Posted July 17, 2015 IMHO, try both and see which ones you like. Link to comment Share on other sites More sharing options...
d_striker Posted July 17, 2015 Share Posted July 17, 2015 Thanks for the explanation guys. Hijack over. Link to comment Share on other sites More sharing options...
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