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Zaffiri Precision Slide and Barrel - migunowners. org Item reviewed: Zaffiri Precision Slide (RTS - G19 Gen 3 - ZPS 6 RMR, Flat Dark Earth) Zaffiri Precision threaded barrel, black nitride I got these from Zaffiri Precision as part of a package that included a P80 frame, parts kits for the slide and frame, a ZP magwell and fiber optic sights for $550 Pros: On initial inspection the parts looked
Red Dot For Rimfire Precision Bullseye Red Dot For Rimfire Precision Bullseye I have been shooting Rimfire precision bullseye for a couple of months now using my MK IV with a RMR red dot Most others are using the tube style red dots I think all of the top guy’s use the tube style sight So, I started doing a little research online and haven’t found any definitive answers
Precision and Accuracy - 知乎 Precision is the repeatability, or reproducibility of the measurement Precision指的是测量结果的一致性。 Accuracy is the proximity of measurement results to the true value Accuracy指的是测量结果和真实结果的接近程度。 在心理学度量中， precision 类似于reliability（即信度）；accuracy类似于 validity （即效度）。
如何解释召回率与精确率？ - 知乎 一般来说，Precision就是检索出来的条目（比如：文档、网页等）有多少是准确的，Recall就是所有准确的条目有多少被检索出来了。 正确率、召回率和 F 值是在鱼龙混杂的环境中，选出目标的重要评价指标。 不妨看看这些指标的定义先： 1
Michigan Gun Owners Community Forum When this gun came out, I wanted one This gun with a suppressor and subsonic ammo is quieter than a mouse fart Now Ruger releases them in 17 HMR and 22 WMR 17 HMR is an awesome round, but no chance for subsonic fun Other than changing magazines, it would appear that a barrel swap on the same gun would allow one to change from 22LR to the other two calibers Since the rear of the case