Barnbwt,
You have absolutely now idea what you're talking about.
1. The P7M8 and M13 have heat shields. You obviously are talking about a gun you've never spent time with. I have. It got warm, but never got unusable in a normal course of fire.
2. Barrel quality is not that important. A smooth bore 9mm barrel will still shoot inside an inch at 25 yards when fired from a fixture. A service pistol that shoots 5" groups does so because it is inconsistently keeping the barrel pointed where aimed. Some two piece barrels created accuracy problems, but that was because the two pieces move.
3. The Accuwedge is an effort to make sure that the bore is pointed in the same direction it was when the round with set off. If firearms were lasers, consistency to the frame wouldn't matter, but since it takes so long for the round to exit the bore it is important that the barrel either doesn't move or moves the same direction every time. The amount of movement is so extreme that you can see how very different the alignment of the sights and bore are on a revolver. This is because the gun's sights are pointed in the direction the bore will be pointing later. Or in the case of a recoil operated pistol, where the bore has recoiled to since ignition. In the case of the Beretta, the barrel swings up to center in the slide during recoil.
For a rifle, the Accuwedge does exactly the same thing that stock bedding does - keeps the barreled action from moving compared to the stock.
4. Fixed barrel pistol slides don't need to have a tight relationship with the barrel because they can have a tight relationship with the frame rails instead. The concentric recoil spring and the breechface/cartridge/chamber relationship will also keep the slide and sights consistently positioned. Virtually every Walther PP style gun with the barrel rigidly fixed to the frame will shoot like a P7. Most of those guns just don't have trigger or sights to let people see that.
Keeping the pieces of a pistol acting consistently to each other is only hard if you choose a design where the parts have complex relationships with each other. A Luger wasn't built for accuracy - it simply is accurate because it would be difficult for a gun of that basic layout to not be accurate.
You have absolutely now idea what you're talking about.
1. The P7M8 and M13 have heat shields. You obviously are talking about a gun you've never spent time with. I have. It got warm, but never got unusable in a normal course of fire.
2. Barrel quality is not that important. A smooth bore 9mm barrel will still shoot inside an inch at 25 yards when fired from a fixture. A service pistol that shoots 5" groups does so because it is inconsistently keeping the barrel pointed where aimed. Some two piece barrels created accuracy problems, but that was because the two pieces move.
From: http://www.shootingtimes.com/gunsmithing/gunsmithing_accuracy_st_102007/One question that comes up all the time is who makes the best barrels. I have been able to test quite a few in a fixture that allows only the barrel to be tested independent of the gun. I have concluded that there really is not very much difference between a World War II GI barrel and one of today’s finest match barrels. I shot 13 different barrels and fired five 10-shot groups from each at 50 yards. The ammo was Federal Gold Medal 185-grain .45 ACP, and the accuracy range was from a smallest average of 1.36 inches to a largest of 1.99 inches. There was a difference of 0.28 inch in the averages of the top nine barrels. With things that close, it’s hard to crown a winner with any degree of statistical accuracy.
3. The Accuwedge is an effort to make sure that the bore is pointed in the same direction it was when the round with set off. If firearms were lasers, consistency to the frame wouldn't matter, but since it takes so long for the round to exit the bore it is important that the barrel either doesn't move or moves the same direction every time. The amount of movement is so extreme that you can see how very different the alignment of the sights and bore are on a revolver. This is because the gun's sights are pointed in the direction the bore will be pointing later. Or in the case of a recoil operated pistol, where the bore has recoiled to since ignition. In the case of the Beretta, the barrel swings up to center in the slide during recoil.
For a rifle, the Accuwedge does exactly the same thing that stock bedding does - keeps the barreled action from moving compared to the stock.
4. Fixed barrel pistol slides don't need to have a tight relationship with the barrel because they can have a tight relationship with the frame rails instead. The concentric recoil spring and the breechface/cartridge/chamber relationship will also keep the slide and sights consistently positioned. Virtually every Walther PP style gun with the barrel rigidly fixed to the frame will shoot like a P7. Most of those guns just don't have trigger or sights to let people see that.
Keeping the pieces of a pistol acting consistently to each other is only hard if you choose a design where the parts have complex relationships with each other. A Luger wasn't built for accuracy - it simply is accurate because it would be difficult for a gun of that basic layout to not be accurate.
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