kneelingatlas

Nice work!

That's very interesting, I've never seen this before. I wonder what OD they are? From the description "Note: Picture is of a 6" barrel with bushing for fitting on to a SPO1 Barrel" I might think the OD is 12.75mm? since SP01 barrels are 14mm OD. Tanfoglio barrels are 14mm (small frame) and 15mm OD (large frame). I think I'll write them an email right now...

According to Hodgdon (http://www.hodgdon.com/burn-rate.html) LongShot is much slower than Unique, even slower than HS6, AutoComp and Silhouette (three favorites amount the 9 Major crowd). LongShot should work the comp well although I suspect you'll start seeing some pretty flat primers before you make Major. Here's what I would do if I were you (I'm glad to see you working with a chrono ): Check your barrel and your mags to see how long you can load with your 115gr Berry's (I'm thinking ~1.145"), then load a handful of rounds at 6.0, 6.2, 6.4 and see where you're at. That should get you a safe baseline, then work your way up from there watching your primers to see how flat they get. Are you using pistol or rifle primers?

All the gunsmiths I know are drowning in work so I'd bet you could talk one into an apprenticeship, then who knows maybe you buy the business from him in the end... I'd be inclined to work for free before I paid for a school.

Sandro, The 10mm Hunter with a .40 barrel is one way to get a 6" .40, the other is the IFG Bullseye: Yes, they are rare as hens' teeth, but after hearing Sandro's story of how he got two Stock IIIs I don't doubt his resolve! Some even rolled out with lightened slides:

The Tactical Sport barrel is only 5.1" (130mm as advertised by CZ UB)

Here's the build thread: http://www.czfirearms.us/index.php?topic=49760.0

That's part of your problem. TG is a fast powder; if you were making those same velocities using HS6 or Autocomp you'd feel the effect of the comp much more. By the looks of your video you can barely tell the comp is there right?

I've corresponded with the guy who built one: a SAO SP01 frame with a TS upper.

It looks like they have Stock IIs in stock for $900!

That's a great problem to have

First off, you can replace the screws with M3x0.5 set screws of the length you want. Second, you might like the feel of a 20# hammer spring; the break will be more crisp.

I take it you sell commercially reloaded ammo?

What do you mean cut the dust cover? Im intrigued now! Well, if you want this: to look like this: or even this: Just get out the chop saw and go to work!

That's the Hunter .45 top end; the Hunter slide is polished all over like the Match is on the flats, it really is a beautiful pistol: all glossy black!

praetorian97 alluded to the difference between the standard frame and the competition frame; the Match shares the standard frame of the Witness steel pistols although it features a long slide upper and a SAO trigger, but the Gold Team, Limited, Hunter, Limited Pro, and Stock II/III share a frame which has a flared mag well opening, provision for a mag well, a solid hammer pin, long beaver tail and aggressive checkering. In the case of the GT, Limited and the Hunter the frame comes drilled and tapped for optics. The first time you grip a pistol with the competition frame, nothing else will do The frames for the GT, Limited/Pro, Hunter and Stock II are essentially the same but with varying length dust covers (the Stock III is the same length as the Limited/Hunter, but has a rail) and the Production models are not drilled and tapped. The Limited and Hunter have the longest frame which comes to the end of a long slide slide (4.75" barrel), the Gold Team and Stock II have a frame which comes to the end of a standard length slide (4.5" barrel) and the Limited Pro has the standard length frame, the same as the standard pistols. I feel like the Hunter is the best base for a project since it's less money than the Limited and you can cut the dust cover to make it into any of the others. This is what I've done with mine: Photoshop rendering of my latest project:

The bottom looks like a Hunter with a long slide conversion, right?

Beautiful! Are they both .40?

Luke, I responded to your questions here: http://www.brianenos.com/forums/index.php?showtopic=183450&hl=

Luke, A compensator changes the way the pistol cycles because it delays the un locking of the barrel lugs and adds weight to the barrel, so yes there is less energy left to cycle the slide with any given load. There are two components to recoil: the rotational (muzzle flip) and the straight back (kick for lack of a better term); the gas diverted upwards out of the comp mitigates muzzle flip and the flat baffles impacted by the blast effectively pull the pistol forward, mitigating the push straight back. So without the comp, the moment the bullet exits the barrel it unlocks and releases the slide; the energy of expanding gasses push the slide back and cycle the gun, but with the comp gas pressure is bleeding out the front of the barrel and pushing off the baffles delaying the unlocking of the barrel so by the time the slide is un locked, there is relatively little energy left to cycle the slide. Back to a "good load" for the comp: the comp uses gas pressure to mitigate muzzle flip and recoil, so the more gas the better, but not all powders produce the same amount of gas. The principles at work are essentially opposite when choosing a powder for a compensated pistol and a plain muzzle pistol and since the vast majority of pistols which shoot commercially loaded ammo do not have compensators on them the powder used in that 'off-the-shelf' ammo is pretty much the worst possible to achieve your goals. You want slow burning, low density powder, but factory ammo uses fast burning, high density powder because that's what creates the most velocity with the least recoil. Do you reload?

Did you machine a dovetail for the front sight?

That's the beauty of the red stuff: it's solid as a rock, then just hit it with the torch and it releases.

Very wise...

All CZ75s are small framed.

http://news.yahoo.co...09355.html?vp=1.