求教枪械专家，啥叫false muzzle？

最近看枪械发展史方面资料，看到false muzzle这种说法，不知中文怎么译？
原文资料如下：

The match rifles themselves still weighed in the 9-15 lb. range. They were generally around .45 caliber. The rifling twist had increased to 1:30, sometimes with a "gain twist", starting out with a slower twist, and getting tighter as the rifling neared the muzzle. The faster rate of twist was due to the longer bullet needing the faster rate of spin to stabilize. In 1840 the next significant development was the "false muzzle". This was a piece approximately 1 1/2 to 2" long, which had been cut off the end of the barrel during manufacture, after the bore had been cut, but before the rifling had been cut. Prior to being cut, four equidistant holes were drilled along the long axis of the barrel, from the muzzle end. After being cut, four pins were placed in the holes. The false muzzle was attached to the barrel, then the rifling was cut in both. The bore was reamed smooth at the other end to provide a "funnel" for the bullet being loaded. The false muzzle was placed on the end of the rifle, the base of the straight starter went on over that (with the patch and round placed on it), and finally the straight starter itself. All of this insured that the bullet would go into the rifle as straight as possible, and also protected the all-important rifling at the true muzzle. By this time, paper patches were being used for accuracy, in place of the linen patches. Paper patches are either cross or strip patches. Cross-style is cut with a special cross-shaped cutter, giving an "X" shaped piece of paper. Strip style is several narrow strips of paper, overlaid to give an "X" pattern or, with three strips, an asterisk (*) shaped six-point pattern. The paper was oiled with sperm whale oil (hardly available now!). The base of the straight starter generally had slots cut into it to place the patches in the proper orientation, with the bullet placed on the patch strips. The paper strips were found to be more accurate than the linen, as the bullet could be made to fit the bore more closely.

BulletStart.jpg (54.92 KB, 下载次数: 4)

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求教枪械专家，啥叫false muzzle？

2012-6-7 08:38 上传

最近看枪械发展史方面资料，看到false muzzle这种说法，不知中文怎么译？
原文资料如下：

The match rifles themselves still weighed in the 9-15 lb. range. They were generally around .45 caliber. The rifling twist had increased to 1:30, sometimes with a "gain twist", starting out with a slower twist, and getting tighter as the rifling neared the muzzle. The faster rate of twist was due to the longer bullet needing the faster rate of spin to stabilize. In 1840 the next significant development was the "false muzzle". This was a piece approximately 1 1/2 to 2" long, which had been cut off the end of the barrel during manufacture, after the bore had been cut, but before the rifling had been cut. Prior to being cut, four equidistant holes were drilled along the long axis of the barrel, from the muzzle end. After being cut, four pins were placed in the holes. The false muzzle was attached to the barrel, then the rifling was cut in both. The bore was reamed smooth at the other end to provide a "funnel" for the bullet being loaded. The false muzzle was placed on the end of the rifle, the base of the straight starter went on over that (with the patch and round placed on it), and finally the straight starter itself. All of this insured that the bullet would go into the rifle as straight as possible, and also protected the all-important rifling at the true muzzle. By this time, paper patches were being used for accuracy, in place of the linen patches. Paper patches are either cross or strip patches. Cross-style is cut with a special cross-shaped cutter, giving an "X" shaped piece of paper. Strip style is several narrow strips of paper, overlaid to give an "X" pattern or, with three strips, an asterisk (*) shaped six-point pattern. The paper was oiled with sperm whale oil (hardly available now!). The base of the straight starter generally had slots cut into it to place the patches in the proper orientation, with the bullet placed on the patch strips. The paper strips were found to be more accurate than the linen, as the bullet could be made to fit the bore more closely.

BulletStart.jpg (54.92 KB, 下载次数: 4)

下载附件 保存到相册

求教枪械专家，啥叫false muzzle？

2012-6-7 08:38 上传