هلیکس فولادی: پاسخ یک ماشین‌کار اسلحه‌ساز به پرسش لولهٔ رگوله‌دار

Dozens of photographs and illustrations. Well-illustrated, comprehensive guide to drilling, reaming and rifling barrels in your own shop. Detailed instructions and illustrations guide you through the process of fabricating a machine capable of turning a solid bar of steel into a finished rifle barrel. A very thorough description of deep-hole drills, reamers and rifling cutter boxes will provide all the know-how necessary to fabricate and heat-treat the cutting tools. The three most common methods of creating rifle barrels are discussed, with the pros and cons of each. Four different methods of accurately rotating the rifling cutter box during the cut-rifling operation are examined. There are also separate chapters devoted to selecting the best steel alloys for the job based on chemical composition and mechanical properties and proof-firing the finished barrels. IMG_20221026_0001 IMG_20221026_0002 IMG_20221026_0003 IMG_20221026_0004 IMG_20221026_0005 IMG_20221026_0006 IMG_20221026_0007 IMG_20221026_0008 IMG_20221026_0009 IMG_20221026_0010 IMG_20221026_0011 IMG_20221026_0012 IMG_20221026_0013 IMG_20221026_0014 IMG_20221026_0015 IMG_20221026_0016 IMG_20221026_0017 IMG_20221026_0018 IMG_20221026_0019 IMG_20221026_0020 IMG_20221026_0021 IMG_20221026_0022 IMG_20221026_0023 IMG_20221026_0024 IMG_20221026_0025 IMG_20221026_0026 IMG_20221026_0027 IMG_20221026_0028 IMG_20221026_0029 IMG_20221026_0030 IMG_20221026_0031 IMG_20221026_0032 IMG_20221026_0033 IMG_20221026_0034 IMG_20221026_0035 IMG_20221026_0036 IMG_20221026_0037 IMG_20221026_0038 IMG_20221026_0039 IMG_20221026_0040 IMG_20221026_0041 IMG_20221026_0042 IMG_20221026_0043 IMG_20221026_0044 IMG_20221026_0045 IMG_20221026_0046 IMG_20221026_0047 IMG_20221026_0048 IMG_20221026_0049 IMG_20221026_0050 IMG_20221026_0051 IMG_20221026_0052 IMG_20221026_0053 IMG_20221026_0054 IMG_20221026_0055 IMG_20221026_0056 IMG_20221026_0057 IMG_20221026_0058 IMG_20221026_0059 IMG_20221026_0060 IMG_20221026_0061 IMG_20221026_0062 IMG_20221026_0063 IMG_20221026_0064 IMG_20221026_0065 IMG_20221026_0066 IMG_20221026_0067 IMG_20221026_0068 IMG_20221026_0069 IMG_20221026_0070 IMG_20221026_0071 IMG_20221026_0072 IMG_20221026_0073 IMG_20221026_0074 IMG_20221026_0075 IMG_20221026_0076 IMG_20221026_0077 IMG_20221026_0078 IMG_20221026_0079 IMG_20221026_0080 IMG_20221026_0081 IMG_20221026_0082 IMG_20221026_0083 IMG_20221026_0084 IMG_20221026_0085 IMG_20221026_0086 IMG_20221026_0087 IMG_20221026_0088 IMG_20221026_0089 IMG_20221026_0090 IMG_20221026_0091 IMG_20221026_0092 IMG_20221026_0093 IMG_20221026_0094 IMG_20221026_0095 IMG_20221026_0096 IMG_20221026_0097 IMG_20221026_0098 IMG_20221026_0099 IMG_20221026_0100 IMG_20221026_0101 IMG_20221026_0102 IMG_20221026_0103 IMG_20221026_0104 IMG_20221026_0105 IMG_20221026_0106 IMG_20221026_0107 IMG_20221026_0108 IMG_20221026_0109 IMG_20221026_0110 IMG_20221026_0111 IMG_20221026_0112 IMG_20221026_0113 IMG_20221026_0114 IMG_20221026_0115 IMG_20221026_0116 IMG_20221026_0117 IMG_20221026_0118 IMG_20221026_0119 IMG_20221026_0120 IMG_20221026_0121 IMG_20221026_0122 IMG_20221026_0123 IMG_20221026_0124 IMG_20221026_0125 IMG_20221026_0126 IMG_20221026_0127 IMG_20221026_0128 IMG_20221026_0129 IMG_20221026_0130 IMG_20221026_0131 IMG_20221026_0132 IMG_20221026_0133 IMG_20221026_0134 IMG_20221026_0135 IMG_20221026_0136 IMG_20221026_0137 IMG_20221026_0138 IMG_20221026_0139 IMG_20221026_0140 IMG_20221026_0141 IMG_20221026_0142 IMG_20221026_0143 IMG_20221026_0144 IMG_20221026_0145 IMG_20221026_0146 IMG_20221026_0147 IMG_20221026_0148 IMG_20221026_0149 IMG_20221026_0150 IMG_20221026_0151 IMG_20221026_0152 IMG_20221026_0153 IMG_20221026_0154 IMG_20221026_0155 IMG_20221026_0156 IMG_20221026_0157 IMG_20221026_0158 IMG_20221026_0159 IMG_20221026_0160 IMG_20221026_0161 IMG_20221026_0162 IMG_20221026_0163 IMG_20221026_0164 IMG_20221026_0165 IMG_20221026_0166 IMG_20221026_0167 IMG_20221026_0168 IMG_20221026_0169 IMG_20221026_0170 IMG_20221026_0171 IMG_20221026_0172 IMG_20221026_0173 IMG_20221026_0174 IMG_20221026_0175 IMG_20221026_0176 IMG_20221026_0177 IMG_20221026_0178 IMG_20221026_0179 IMG_20221026_0180 IMG_20221026_0181 IMG_20221026_0182 IMG_20221026_0183 IMG_20221026_0184 IMG_20221026_0185 IMG_20221026_0186 IMG_20221026_0187 IMG_20221026_0188 IMG_20221026_0189 IMG_20221026_0190 IMG_20221026_0191 IMG_20221026_0192