Greengun

What about TSO .40S&W? Do they use the same spring weight as 9mm?

Dave, appreciate your input. Thanks!

@dave33, thanks for the reply. Since you actually have an Expert and have years of competition experiences, may I ask why you’ve not used it in competition? FYI, I’ve just ordered one but haven’t gotten it yet. It won’t hurt my feeling even if it’s not suited for competition in comparison to other choices.

Sorry to resurrect an old thread. I’ve been looking to get an USP Expert. In HK’s description it says USP Expert was developed especially for target shooters. I wonder how many people actually use it in competitions?

I can’t find that 2nd rear sight with fiber on it on the ipsc site. Where is it? Thanks in advance.

EZout comes only in 4 or 5 sizes and even the smallest one is not small enough for some small screws like those on rear sights.

As above, I have the same experience that larger dots turned out much better for me. I have used 2moa and 3.5moa dots and they all have tails but when I use RM05 9moa and RM07 6.5moa they are just round without tails. The triangle 7.5moa dot on Deltapoint Pro works for me pretty good too.

One key issue OP trying to address is astigmatism. When that’s the issue, sadly, it doesn’t matter how clear or crisp the glass is. I have 5 different red dots and for me I can say that smaller dots tend to have tails than bigger dots. And triangle dots work better than round dots.

Astigmatism or not, I believe not many red dot sight are truly parallax free. Holographic sights such as EOTech should produce less (but not none) aberration than red dots. Prismatic optics with with an adjustable ocular diopter would be the best solution for astigmatism distortion but it’s not a both eyes open system. Based on all the feedback I’ve seen from people with astigmatism, individual results vary differently so when one sees better on a particular red dot it doesn’t mean the experience would be same for you unfortunately.

Oh, do you get reliable slide lock on last round?

Thanks for the reply. Has anyone tried the CZC base pad with factory follower? I’ll give it try to see how many rounds it adds.

Understood but was just trying to find a best combination. I have the magazines and am trying to figure out what to buy to get +3 round with reliable last round lock back.

I am curious what’s causing the slide not to lock back on last round. Should we keep using the stock mag follower? (CZC base pad and Grams spring with oem follower)

Wouldn’t Grams 13 coil offer more spring power, which is a good thing for extended magazines, than 11 coil?

To get 17+3 .40 with Grams spring should we use 11 or 13 coil? The following website information is not clear to me. 11 coil - 145mm long 13 coil - 146mm - 171mm