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by Air Venturi

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  • Currently 5.00/5

Rating: 5.0/5 (4 votes cast)

Review this product
10 November 2008  

Things I liked: Quite operation and now cocks nice and smooth...elimated a crunching sound on cocking
Things I would have changed: Make it standard issue
What others should know: Spoke with the tech at Pyramyd, as I had to send this in to get installed, very helpful and even gave me some chrony numbers on how it was shooting..I didnt gain any spped, if fact lost approx 25'..but its made the rifle so much smoother...using it on a 34 panther. Fast turn around from Pyramyd.
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12 September 2008  

Things I liked: Drop in replacement assm (with the right tools). VERY smooth with no "twang" effect AT ALL. Just a solid "thump". Cocking effort "feels" a wee bit stiffer although after 20 shots I got used to it as if it were the original. Makes a big difference in the feel of the gun firing.
Things I would have changed: nothing.
What others should know: Before the Pro-guide the rifle had about 1500 shots through it and could shoot 14.3 CP's at around 840- 850 FPS. I installed the Pro-guide and a washer as per BB's blog to try and get a little more velocity. Test fired about 5 shots for function and then set up the chrony. Did a 10 shot string and these were the results with 14.3 CP's: 1) 833.4 2) 838.4 3) 831.9 4) 837.8 5) 837.5 6) 842.0 (HIGH) 7) 825.9 8) 832.0 9) 837.7 10) 805.3 (LOW) Avg = 832.2 ES = 36.75 SD = 10.48 Not bad for a drop in spring/guide. Plus the "feel" of the rifle now is so good you want to shoot it MORE. I didn't get a chance to do any accuracy tests yet, hopefully it will shoot as good as it feels.
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30 August 2008  

Things I liked: Very smooth, nice "thump" at discharge with no other noise. Very easy to install, took about 15 minutes. Accuracy remained unchanged. Very smooth and no noise during cocking.
Things I would have changed: nothing
What others should know:  I installed this kit in a new Diana 48, in .177, I had already tuned this rifle and was using the factory spring. The factory spring broke after several thousand shots so I installed this kit. Factory spring was giving me 1039 avg. FPS with SD of 5.83. This kit after 280 shots is giving 968.0 avg. FPS with SD of 6.77. This is 71 FPS under the factory spring, no big deal, shoots nice.
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21 August 2008  

Things I liked: Nice tolerances, easy to install...
Things I would have changed: Better pricing...
What others should know: I did the install on my 34 Panther and it was quick and easy. She was clocking in at about 776fps prior to this addition and is now clocking in at around 839fps (10 rounds each, 14.3 grain chps). The gun cocks much smoother now and there's a solid 'thunk' when fired. The recoil feels a little harder than stock, but it's a nice and solid feel. I have another 34 that has a well-known aftermarket tune kit installed. That rifle shoots really well, though there was actually a small drop in velocity after installing the other tune kit, but her accuracy is incredible. I'd take accuracy over velocity any day, but won't complain if I have both. There's lots of speculation and rah-rah going on about this pro-guide kit so I thought I'd be one of the first to give it a try. So far so good; easy installation, good fitting parts and a velocity higher than that advertised for the stock gun. I'll post a follow-up after a couple hundred more rounds with this to see how it holds up compared to my other 34 with the other custom tune/spring kit installed as far as durability, velocity and accuracy goes...
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