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View Full Version : 300 Whisper Ammo and Reloading


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  1. Case trimming fast easy cheap (2 replies)
  2. 300 whisper brought dinner home friday morning (25 replies)
  3. Initial loading issues (21 replies)
  4. Hawk 250gr subsonic expansion (14 replies)
  5. 302 Whisper (3 replies)
  6. Another AR magazine question and COAL (1 replies)
  7. 220gr SMKs not stabilizing. (15 replies)
  8. 300/221 fireball 300 Whisper Dim. (1 replies)
  9. Some Observations on M1S Barrel and Converted Brass (0 replies)
  10. Questions from a 300 Whisper newbie (3 replies)
  11. .300 Whisper subsonic out of a 7" barrel (1 replies)
  12. Anyone looking for 300whisper brass? (1 replies)
  13. My New Hunting Load! Barnes 100gr X (18 replies)
  14. Paging KEITH DAVIS (10 replies)
  15. New member, have a M1S .300 Fireball barrel - now what? (4 replies)
  16. What dies do I REALLY need? (6 replies)
  17. Subsonic 147gr (13 replies)
  18. aa1680 loads? (2 replies)
  19. My SD numbers are horrible (3 replies)
  20. hot 220smk load (1 replies)
  21. Mark/Die/Stain brass (8 replies)
  22. Quiet load recommendations (6 replies)
  23. Oal ??? (3 replies)
  24. Brass Prices (2 replies)
  25. Bullet weight for hunting (4 replies)
  26. M1S seat depth = Trouble? (15 replies)
  27. annealing/methods (2 replies)
  28. Do you guys think this is a good load? (4 replies)
  29. 300 newby (9 replies)
  30. IMR4227 a replacement for H4227 (1 replies)
  31. Grooved/Ringed Bullets? (2 replies)
  32. gouged brass on M1 Sales upper (16 replies)
  33. Seating 220 SMKs with Redding Dies (3 replies)
  34. 300 whisper brass (3 replies)
  35. Cold bore shot 100 fps faster? (6 replies)
  36. Sorry if this was previously posted, but (6 replies)
  37. Annealing Brass (3 replies)
  38. Soft Cor-Bon brass ? (16 replies)
  39. Doyle Gracey Cartridge Trimmer (4 replies)
  40. Olympic arms reloads (6 replies)
  41. Gas port hole size? (1 replies)
  42. 300 Whisper case dimensions (1 replies)
  43. Prospects of a new bullet (3 replies)
  44. Fired my 300 whisper for the 1st time today. (16 replies)
  45. trim length (2 replies)
  46. Anybody try out the new Hornady 208 gr. AMax yet (33 replies)
  47. Hi velocity due to chamber "hold" time? (5 replies)
  48. Any 300 whisper Ammo stocked in Atlanta? (0 replies)
  49. Wild Extreme Spread (3 replies)
  50. Turning bullets with gang tooling (16 replies)
  51. Col? (2 replies)
  52. Velocity Deviation Problems (3 replies)
  53. Sierra 110g 0.308 HP #2110 (1 replies)
  54. Tracers (4 replies)
  55. 121 db reading w/suppressor & subsonic loads (9 replies)
  56. Another Trail boss question (12 replies)
  57. May 08 American Rifleman (1 replies)
  58. Loads that cycle a 10.5" upper (8 replies)
  59. Midway has 221 fireball brass in... (1 replies)
  60. Swaging primer pockets (1 replies)
  61. Charges and Seating Depth (26 replies)
  62. Need a popular powder for 300 Whisper load (5 replies)
  63. 300 Whisper Brass formed from 223? (6 replies)
  64. Frangible M-160 108.5 Grain in whisper? (19 replies)
  65. reloading components (2 replies)
  66. C309-200-R cast in AR? (1 replies)
  67. Bullet thought of the day (5 replies)
  68. Model 1 upper test fire question (7 replies)
  69. Is there interest in buying formed brass? (9 replies)
  70. Is This Neck Too Big? (7 replies)
  71. 125 gr cast gc loads (1 replies)
  72. 125 BTs for hunting medium game??? (7 replies)
  73. Yet another way to make 300-221 fireball brass (27 replies)
  74. looking for subsonic load data using W296... (2 replies)
  75. .300 Whisper loads w/ AA powders (0 replies)
  76. Subsonic 150 gr. bullets (4 replies)
  77. 300/221 load for 220gr SMK (0 replies)
  78. Best Powders for 12" 300-221 (13 replies)
  79. 300 whisper ssk 14" contender (1 replies)
  80. Measuring length of chamber (0 replies)
  81. Crimp Die (13 replies)
  82. Size of game with supersonic 125 gr TNT? (5 replies)
  83. Anyone Turn your own bullets? (15 replies)
  84. Brass from gunbroker Q (26 replies)
  85. Accuracy Issue (2 replies)
  86. Just starting off (3 replies)
  87. 1-8 twist and 180 grn / sub. (5 replies)
  88. making 300 out of 223 and 221 questions (2 replies)
  89. Value of 300/221 brass. (0 replies)
  90. 300 and the 175smk questions (2 replies)
  91. starline Brass (0 replies)
  92. Brass for sale (0 replies)
  93. 300 whisper and Trail Boss (3 replies)
  94. Whisper maximum range (3 replies)
  95. New Sierra 135 g HPBT MK (5 replies)
  96. 221 brass neck thickness? (1 replies)
  97. cant find 221 brass (9 replies)
  98. Alternate parent brass for Whisper in T/C Contender (1 replies)
  99. Brass (0 replies)
  100. Problem with AR magazines (6 replies)
  101. Is Mr. Davis still doing brass? (8 replies)
  102. Lee Factory Crimp Die (7 replies)
  103. An idea on how to get better performance from sub-sonic bullets (14 replies)
  104. 220 & 240 subsonic bullet drop (5 replies)
  105. 220-240gn round nose performance on game? (11 replies)
  106. Neck splitting when necking up. (5 replies)
  107. lightest subsonic to cycle an AR? (2 replies)
  108. Subsonic 125g or 150g (1 replies)
  109. Lets talk powder/bolt & semi (5 replies)
  110. 200 Gr. Reed's Ammo going supersonic (2 replies)
  111. Hello and I need some advice (5 replies)
  112. 300 Whisper / Fireball Die Availability? (11 replies)
  113. Am I short throated? (0 replies)
  114. Max loads using a 125 sierra (10 replies)
  115. .300 Whisper Sub-Sonic pressures equal to 9mm? (2 replies)
  116. expansion @ 750 fps (10 replies)
  117. 300 221 powders (2 replies)
  118. WTB 221 Fireball brass (no 223 brass) (2 replies)
  119. 5.56 case sizeing (3 replies)
  120. 30 cal carbine bullets? (3 replies)
  121. Has anyone tried WC820 powder? (0 replies)
  122. Has anyone tried WC820 powder? (2 replies)
  123. 240 gr SMK data (5 replies)
  124. Loads that cycle a 10.5 AR... (2 replies)
  125. Brass Bending (11 replies)
  126. Newbie with a question (1 replies)
  127. Using Unique w/ 150 gr FMJ (1 replies)
  128. 300 Brass Quality (2 replies)
  129. Any Other Ammo Manufacturers? (2 replies)
  130. New Corbon 300 Whisper Ammo (4 replies)
  131. How light of bullet for subsonic (6 replies)
  132. First shot always slower... (6 replies)
  133. standard deviation for subsonic rounds (5 replies)
  134. WTK: Anyone make loaded ammo FS? (3 replies)
  135. what powders are you using? (18 replies)
  136. Loading 300W + H110 (vihtavuori) + PPU 145 grFMJ BT (6 replies)
  137. 300 whisper super-sonic load range results (24 replies)
  138. Major threat to reloaders!!! (1 replies)
  139. Once fired vs. new formed brass (1 replies)
  140. Cast (21 replies)
  141. Tracer Info (8 replies)
  142. 300/221 loads and pressure signs (7 replies)
  143. Subsonic and ARs (10 replies)
  144. Cannelure on Sierra M King (0 replies)
  145. 110gr Speer & 125gr Win (8 replies)
  146. Hornady Seventh Edition has 300 whisper info! (0 replies)
  147. tight neck (6 replies)
  148. Working through the details... (5 replies)
  149. RCBS Comp seating die? (0 replies)
  150. WSR Primers? (0 replies)
  151. 168smk? (1 replies)
  152. Wow, that 500-bullet box is HUGE (Sierra 240 HPBTs) (22 replies)
  153. AA#9 Loads (7 replies)
  154. Max cartridge length (1 replies)
  155. going from 5.56 to 300-221 (19 replies)
  156. Finally shot the 300 Whisper (1 replies)
  157. Powder sticking to funnel... (2 replies)
  158. Subsonic loads enough to fully expand brass? (3 replies)
  159. Wildcat Bullets 308 255 gr RBBT HPs (9 replies)
  160. Couple of 300 fireball loads (2 replies)
  161. Best temp stable powder for subsonic? (5 replies)
  162. 300 Fireball casting (2 replies)
  163. Keith Davis Question, Please Help (30 replies)
  164. Which Redding die set? (6 replies)
  165. 150 to 200 Yd. Whisper "Deer" bullet (13 replies)
  166. aluminum tipped subsonic bullets (4 replies)
  167. maximum bullet weight for a whisper (3 replies)
  168. Need to purchase everything for reloading... (18 replies)
  169. New Project Gun (2 replies)
  170. Ruag subsonic ammo... (6 replies)
  171. Giraud Powered Case Trimmer (3 replies)
  172. rounds sticking in chamber (21 replies)
  173. Loads for H4227? (6 replies)
  174. Affordable reloading supplies... (7 replies)
  175. Updated my site (2 replies)
  176. Ok shots stringing...bad.... (10 replies)
  177. Cartridge case dimensions (1 replies)
  178. I need some advice (1 replies)
  179. Anyone tried 110 bullets in the 300? (3 replies)
  180. Subsonic load & gas tube question (3 replies)
  181. new reload data (0 replies)
  182. Factory .300 Whisper (2 replies)
  183. 300/221 Page (6 replies)
  184. I Really Need Oal!!!! Please!!! (2 replies)
  185. FS - RCBS 300 Whisper 3 Die Set (6 replies)
  186. AA No.7 Loads (0 replies)
  187. 7.62 x 39 M4 Jackhammer ??? (6 replies)
  188. New here, Suppressed T/C Contender??? (8 replies)
  189. 300/221 Recipe for AR (17 replies)
  190. 200 grain Sudsonic Recipes? (2 replies)
  191. Lapua subsonic .30 cal 200 grain FMJ? (2 replies)
  192. subsonic OAL (1 replies)
  193. Corbon (0 replies)
  194. Die question (1 replies)
  195. nef in 300 whisper (0 replies)
  196. SMK vs RN (pics) (14 replies)
  197. The right Rifle? (3 replies)
  198. Am I the only one? (5 replies)
  199. Need help! 240 grain SMK loads won't chamber (2 replies)
  200. Terminal ballistic (9 replies)
  201. My 300 has become tempermental..Help needed! (2 replies)
  202. Wildcat Bullet test (2 replies)
  203. Received Wildcat bullets yesterday (6 replies)
  204. So did I get ripped off? (21 replies)
  205. Best/worst powder for Whisper in an AR? (1 replies)
  206. Need cast bullet loading data (1 replies)
  207. Corbon 300 Whisper (2 replies)
  208. Best way to test bullet stability from muzzle to 10 yards? (2 replies)
  209. Redding Sizing Die setup problems (4 replies)
  210. Tried Hawk Bullets? (42 replies)
  211. Subsonic - 220gr RN vs 240gr MK (7 replies)
  212. subsonic 7.62x39 (2 replies)
  213. RCBS equipment (3 replies)
  214. 220Gr RNSP loading (1 replies)
  215. Sierra Matchking 240s almost got cut! (3 replies)
  216. Cast Bullet Reloading Question Help! (2 replies)
  217. SSK dies or Redding for 300 Whisper (300x221)? (12 replies)
  218. Whisper cartridges: several questions (3 replies)
  219. Cast bullets for the Whisper?? (2 replies)
  220. Subcaliber Adaptors. (4 replies)
  221. What Headspace gauge do you use on cases? (1 replies)
  222. Subsonic 240gr field results (13 replies)
  223. G.day from Down Under (7 replies)
  224. RUAG Swiss P Ammo (3 replies)
  225. WTK: Where to buy Corbon Subsonic (13 replies)
  226. how much volume (4 replies)
  227. 300 whisper trim length, see tx (2 replies)
  228. THANK YOU, Keith_DAVIS!!!!! (2 replies)
  229. Post your hunting loads here... (0 replies)
  230. Similar bullets (2 replies)
  231. Must read: whisper and headstamp (1 replies)
  232. Any one field trialled 110gr VMaxes? (2 replies)
  233. Anyone have any Whisper brass they wanna sell? (0 replies)
  234. 300Whisper trim to length 1.355 not 1.400! (23 replies)
  235. Custom dies for 300 Whisper? (5 replies)
  236. Loads for 10" AR15 (1 replies)
  237. Gas Port Diameter and SubSonic Loads. . . (2 replies)
  238. Primers and load data Help (8 replies)
  239. How To Judge Pressure In The Case, Not Only Looking At Primers. (0 replies)
  240. Barnes Bullets (3 replies)
  241. 300 Whisper/Fireball (3 replies)
  242. Neck Thickness (1 replies)
  243. Got any reloading ideas for a T/C? (2 replies)
  244. Starline taking .300 Whisper in consideration (6 replies)
  245. Min/Max case lenght (5 replies)
  246. Max speed with 110 gr bullet? (5 replies)
  247. Hello from the UK, .300 subsonic question (3 replies)
  248. 300/221 on the way (3 replies)
  249. case gauge (2 replies)
  250. Seating bullets causes the necks to bulge (35 replies)