tag:blogger.com,1999:blog-3407817413258733695.post6271420360304618855..comments2024-03-29T06:46:55.327-07:00Comments on Lone Star Parson: HeadspaceLSPhttp://www.blogger.com/profile/08120630078039958644noreply@blogger.comBlogger11125tag:blogger.com,1999:blog-3407817413258733695.post-44029174009434684742009-12-16T09:41:37.593-08:002009-12-16T09:41:37.593-08:00CZ-52 is a semi-auto pistol, FWIW.
People confuse...CZ-52 is a semi-auto pistol, FWIW.<br /><br />People confuse them all the time on the web. Vexing people ;-)tomhttps://www.blogger.com/profile/14230665595988628546noreply@blogger.comtag:blogger.com,1999:blog-3407817413258733695.post-64970026793437019752009-12-16T09:40:30.041-08:002009-12-16T09:40:30.041-08:00VZ-52 (Sometimes referred to as "Che Rifle&q...VZ-52 (Sometimes referred to as "Che Rifle")<br /><br />Original and better chambering of 7.62x45 before Warsaw Pact politics made them rechamber/rebarrel most of them in 7.62x39<br /><br />Semi-Rare.<br /><br />Used in a lot of Warsaw Pact Client State Militaries and Insurgencies, PRIMARILY in Africa and Latin America, although some went to the Mid-East and even the IRA. Of course the Czechs used it in their own Military and police forces.<br /><br />Battle rifle not assault rifle. Essentially it's a amalgamation of various semi-auto rifle designs the Czechs liked, Primarily based off of German stuff they produced for the Nazis during the war and a number of ideas stolen from the M-1 (Garand) U.S. Rifle of .30 Caliber.<br /><br />Very well made and accurate rifles. Ammunition is troublesome unless you make cases yourself from something else, of which there are a number of ways to do, because the origianl ammo is both CORROSIVE and REALLY OLD. I've shot some CZ Mil Surp surplus in it in the past but then you have to clean the gun (not really bad as they take down about as easily as a Berretta 92FS) and the old ammo has a tendency to hang fire because of the powder choice they made way back when and how it tends to age. Boxes of original ammo I have left for it I'm just keeping as collector's items, shoot modern non-corrosive in it when feel like shooting it.<br /><br />Sometimes you see them at gun shows.<br /><br />Neat rifles if you like Mil-Surps.<br /><br />Cheers,<br />Boomer Ladtomhttps://www.blogger.com/profile/14230665595988628546noreply@blogger.comtag:blogger.com,1999:blog-3407817413258733695.post-15825046510299941062009-12-14T15:06:24.529-08:002009-12-14T15:06:24.529-08:00not sure.not sure.LSPhttps://www.blogger.com/profile/08120630078039958644noreply@blogger.comtag:blogger.com,1999:blog-3407817413258733695.post-26971454508702754822009-12-14T14:39:25.632-08:002009-12-14T14:39:25.632-08:00CZ 52?CZ 52?Bob Qathttps://www.blogger.com/profile/05067651103341111702noreply@blogger.comtag:blogger.com,1999:blog-3407817413258733695.post-51730358995004316202009-12-08T19:20:41.879-08:002009-12-08T19:20:41.879-08:00Humility is great virtue... tempted to do a bit on...Humility is great virtue... tempted to do a bit on the blank lock...LSPhttps://www.blogger.com/profile/08120630078039958644noreply@blogger.comtag:blogger.com,1999:blog-3407817413258733695.post-18302481459305794302009-12-08T18:41:52.094-08:002009-12-08T18:41:52.094-08:00Mike just emailed me a chiming in on my update tha...Mike just emailed me a chiming in on my update that cases mostly expand and then slide back or do them somewhat simultaneously, depending on chamber finish. He's experimented with that a lot. Different chamber finishes having a significant influence on the proceedings as to the cartridge moving around in the firing process once the case starts to expand.<br /><br /><i>"Take the extractor out of a barrel for a bottle neck case. Start you loads low, and you will find then stay FORWARD in the chamber until you reach about 40,000, at which point things begin to move. Depends very largely on the surface finish inside the chamber."</i><br /><br />Tom writes a guest tech article and learns more things from his friend ;-)<br /><br />Best way to find out you are mostly right in your answer is by opening your mouth and asking your gurus if you said things properly...<br /><br />Kinda funny...beating up my own web post. I usually do that to other people...tomhttps://www.blogger.com/profile/14230665595988628546noreply@blogger.comtag:blogger.com,1999:blog-3407817413258733695.post-66798637136021044502009-12-08T07:17:02.087-08:002009-12-08T07:17:02.087-08:00Thanks Tom - helpful.Thanks Tom - helpful.LSPhttps://www.blogger.com/profile/08120630078039958644noreply@blogger.comtag:blogger.com,1999:blog-3407817413258733695.post-51334919643725451792009-12-07T21:58:56.389-08:002009-12-07T21:58:56.389-08:00Thinking about it, this might help people wrap the...Thinking about it, this might help people wrap there head around what I was trying to get across in simplistic terms that can't be misunderstood.<br /><br />When a metallic cartridge is fired:<br /><br />Primer strike causing some forward movement and deformation of the cartridge case.<br /><br />As the charge burns, the case spends some time sorta in mid air so to speak, due to a temporary forward crushing of the case.<br /><br />Then the case lands against the breech face of the action and gas pressure expands the case to the full dimensions of the chamber.<br /><br />Proper headspacing keeps the ping ponging around in mid-air, so to speak, to a minimum. And the only way you get that is my measuring the realities not using go/no-go gauges. By dynamic testing, as the feller in Spain did.<br /><br />The less ping ponging around, the better you are in accuracy and preventing misfires.<br /><br />Hope that makes sense to y'all.<br /><br />Some people think that's snake oil but that's the actual mechanics of the beast just as sure as whale oil is a better patch lube than mink tallow. Not that it's sold anymore, but they found it to be true back when whaling was more popular. Just like headspace, they found it out not by theorizing and using static tests, they dynamically tested things at the range and in the lab.<br /><br />The proof is in the proofing house as well as in the pudding.tomhttps://www.blogger.com/profile/14230665595988628546noreply@blogger.comtag:blogger.com,1999:blog-3407817413258733695.post-57122459368914985902009-12-07T10:40:10.377-08:002009-12-07T10:40:10.377-08:00UPDATE: Slightly email chastised by Mike for even...UPDATE: Slightly email chastised by Mike for even mentioning chamber prints and cart specs as the thing is what you really need to do is measure what your true headspace is when the cartridge is going bang and such. The reason people get confused about headspace is by thinking gauges are a way to measure it anything more than nominally. You want minimum headspace in reality by testing and measuring things like shoulder collapse.<br /><br />or as mike said:<br /><br /><i>Screw the prints and specs entirely..... ammo and chambers do not equal reality. Work with the reality in hand and screw the prints and/or gauges.<br /><br />That's the point.<br /><br />You did do well with the fact that shoulders collapse, though. ;-)</i><br /><br />Pardon me for commenting on my own post. Dial indicators and/or feeler gauges, depending on action design = good. Headspace gauges = bad. Measure the reality not the theoreticaltomhttps://www.blogger.com/profile/14230665595988628546noreply@blogger.comtag:blogger.com,1999:blog-3407817413258733695.post-77152952189972531112009-12-07T06:37:23.505-08:002009-12-07T06:37:23.505-08:00Thanks Rick - Tom's post is certainly a teachi...Thanks Rick - Tom's post is certainly a teaching thing for me too!LSPhttps://www.blogger.com/profile/08120630078039958644noreply@blogger.comtag:blogger.com,1999:blog-3407817413258733695.post-11675475476995695212009-12-07T05:41:32.198-08:002009-12-07T05:41:32.198-08:00Pretty interesting what I did understand, it is go...Pretty interesting what I did understand, it is good to learn something new every day. I am going to read it a couple more times to try and understand the rest.Anonymousnoreply@blogger.com