chambered so that the rim cut actually complements case rim thickness (2/1000- inch clearance is adequate, less is better) mitigate all associated case life and ac- curacy problems. Because the Hornet is a favorite
chambering for target shooting through- out Europe, many of those manufactur- ers place extra emphasis on Hornet case (and load) quality. While capacity can be significantly different, improved case quality can make finding such cases worthwhile. Seller and Beloit comes to mind as one example of a good source. As a bonus, most European-made cases often have slightly thicker rims, when compared to most U.S. made cases. Modern 4227: A QuAndAry As many readers will know, Du-
pont introduced IMR 4227 around the time Moses parted the waters, or per- haps when he was taken from the river as a baby — IMR 4227 has been around for a while. Dupont designed IMR 4227 for the 30 Carbine. This was its 4227th tested IMR propellant recipe. (Now you know how Dupont derives all original IMR propellant names.) Several decades back, Hodgdon
began marketing military surplus ver- sions of essentially the same product under the H4227 designation. Histori- cally, the two were always similar but were never presented as being inter- changeable. More recently, Hodgdon intro-
duced an Australian made (ADI — Aus- tralian Defense Industries) version of 4227 under the H4227 moniker. Okay, so we had IMR 4227 and H4227, as stan- dardized commercial products, and still the two were quite similar but still the manufacturers did not market the two as being interchangeable. As many readers should know,
Hodgdon recently purchased IMR (which was the successor of the Dupont powder company). This placed Hodg- don in the situation of marketing two very similar propellants with significant real costs related to DOT shipping ap- proval, dealer stocking limitations, etc. Hodgdon solved all these problems by marketing both under the same moniker — IMR 4227. Only the differing “coun- try-of-origin” statements on the label give away this detail. Twice, Hodgdon representatives
have assured me that these two are es- sentially identical and are intentionally
Join Randy Anderson, Travis Anderson, Gary Hausmann, Shawn Heyden, Morris "Wooly" Kowerchuk, and Glenn Zink for one "Dog Gone" good predator hunting video. The TRUTH®
8 has it all, from hand blown and
electronic calling techniques, to long range shots and close-up kills. Experience with us how much fun predator hunting can be.
3 HOURS 58 KILLS
Step into action with the Verminator crew as they are back in pursuit of coyotes and bobcats. See the amazing footage of a bobcat and coyote called into range by Rick at the same time. Clive is also back and ready for his first driving lesson with the Verminator. Watch Randy and his buddies thin out the predators throughout Nebraska, South Dakota, Kansas, and Canada including his son Travis, back from the Marines. You won't want to miss the 3 hours of awesome, non-stop, and hilarious footage in Vermintator fashion with 45 kills.
The TRUTH® 8 DVD
The TRUTH® 8 DVD
The Verminators VI DVD
The Verminators VI DVD
Calling All Coyotes, Inc.
Randy's & Rick's Videos and Predator Calls are for sales at:
www.callingcoyotes.com or call (402) 376-1120 PO Box 423 · Valentine, NE 69201
kept that way through quality control: “Regardless of country of origin, all new 4227 will perform similarly.” Wish I could report that my test-
ing supported that claim. However, I found significant (to me) density and velocity differences on the first try. In the Hornet, with the 30-grain Barnes Varmint Grenade, 20-shot strings of identical loads with the particular lot of each version of 4227 that I have on hand gave a measured velocity difference of 54 fps for 10-shot strings with standard deviations of 15 (Australian-made ver- sion) and 16 (Canadian-made version). This means that, statistically, the two are definitely distinct with essentially assured probability. Moreover, my samples of these two versions differ in bulk density by about 2%, as measured in my Hornet cases, when installed via swirl charging. Both variations are well within
lot-to-lot differences typical of modern smokeless, canister-grade propellants. However, I have learned to expect better consistency from Hodgdon propellants. So, I have a quandary: To the extent that any propellant is interchangeable
from lot-to-lot, are these two actually interchangeable? In my particular samples, as tested
in my Hornet cases, the apparently slower version (ADI) is also the denser version. It is likely that simply increas- ing the charge about 0.2 grain will allow the ADI version to match pressure and velocity produced by the Canadian ver- sion. However, only laboratory pressure testing would answer the question of whether or not loads at equal velocity would generate equal pressure. So, I have another quandary:
Which to use? This is why I tested each version. I
will leave it to the reader to review the resulting data (velocity, consistency, and accuracy) and make his own decision as to which to look for and use. However, I have based these results upon only one lot of each, so any conclusion is at the mercy of how representative each of the lots that I tested is. (As I am fond of noting in situations such as this, “In this game, we do not do science and for very good reasons!”)
www.varminthunter.org Page 175
$14.99each plus $6.95 s+h
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100 |
Page 101 |
Page 102 |
Page 103 |
Page 104 |
Page 105 |
Page 106 |
Page 107 |
Page 108 |
Page 109 |
Page 110 |
Page 111 |
Page 112 |
Page 113 |
Page 114 |
Page 115 |
Page 116 |
Page 117 |
Page 118 |
Page 119 |
Page 120 |
Page 121 |
Page 122 |
Page 123 |
Page 124 |
Page 125 |
Page 126 |
Page 127 |
Page 128 |
Page 129 |
Page 130 |
Page 131 |
Page 132 |
Page 133 |
Page 134 |
Page 135 |
Page 136 |
Page 137 |
Page 138 |
Page 139 |
Page 140 |
Page 141 |
Page 142 |
Page 143 |
Page 144 |
Page 145 |
Page 146 |
Page 147 |
Page 148 |
Page 149 |
Page 150 |
Page 151 |
Page 152 |
Page 153 |
Page 154 |
Page 155 |
Page 156 |
Page 157 |
Page 158 |
Page 159 |
Page 160 |
Page 161 |
Page 162 |
Page 163 |
Page 164 |
Page 165 |
Page 166 |
Page 167 |
Page 168 |
Page 169 |
Page 170 |
Page 171 |
Page 172 |
Page 173 |
Page 174 |
Page 175 |
Page 176 |
Page 177 |
Page 178 |
Page 179 |
Page 180 |
Page 181 |
Page 182 |
Page 183 |
Page 184 |
Page 185 |
Page 186 |
Page 187 |
Page 188 |
Page 189 |
Page 190 |
Page 191 |
Page 192 |
Page 193 |
Page 194 |
Page 195 |
Page 196 |
Page 197 |
Page 198 |
Page 199 |
Page 200 |
Page 201 |
Page 202 |
Page 203 |
Page 204 |
Page 205 |
Page 206 |
Page 207 |
Page 208 |
Page 209 |
Page 210 |
Page 211 |
Page 212