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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
The 25 sst...up and running
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<blockquote data-quote="CA48" data-source="post: 2004158" data-attributes="member: 21446"><p>Did some testing with the 90gr Absolute Hammers yesterday.</p><p></p><p>25SST</p><p>26"</p><p>1&7</p><p>CBTO 3.261 -.001" </p><p>COAL 2.750</p><p>NT .001</p><p>Fed 210</p><p>ADG Brass</p><p>87*</p><p>90gr Absolute Hammer</p><p></p><p></p><p>RL26</p><p></p><p>60 3586</p><p>61 3660</p><p>62 3687 ej mark</p><p>63 3750 -</p><p>64 3805 -</p><p>65 3849 - ~100% load density</p><p>66 3903 -</p><p>67 3980 - out of room for powder</p><p></p><p></p><p>H4350</p><p></p><p>54 3528</p><p>55 3566</p><p>56 3612</p><p>57 3654</p><p>58 3698</p><p>59 3759</p><p>60 3796 ej mark</p><p>61 3855 -</p><p>62 3915 -</p><p>63 3977 - bolt lift ~95% load density</p><p></p><p>Shot 3 shot groups at 100yds with H4350 in .5gr increments from 59-61.5gr. Almost all groups were around half moa except for 61gr at 1". Testing was done with a suppressor attached.</p><p></p><p>Best group was .4" at 59gr with a velocity of 3760. Brass lasted 8 firings here.</p><p></p><p>61.5gr shot .6" at 3880 fps. Brass lasted 3 firings.</p><p></p><p>H4350 looks like a good powder for this case. For the conditions 9cl 12mph wind and slight mirage I thought they shot pretty good and should do much better in more ideal conditions. Not to mention the round count on my barrel is pretty high. Definitely a step up in velocity from the 92gr HH's I tested last year. </p><p></p><p>I started pressure testing H4895 also but haven't finished yet. It looks like it will be to fast for this combo with a lower load density to. Should finish out 100-200 fps behind h4350</p><p></p><p>Also had a 3/4" hard-end steel plate at 100yds that I put a 90gr hammer into at 3900fps just for the heck of it. It almost made it all the way through!</p><p></p><p>Now I just need to test them out on game.</p></blockquote><p></p>
[QUOTE="CA48, post: 2004158, member: 21446"] Did some testing with the 90gr Absolute Hammers yesterday. 25SST 26” 1&7 CBTO 3.261 -.001” COAL 2.750 NT .001 Fed 210 ADG Brass 87* 90gr Absolute Hammer RL26 60 3586 61 3660 62 3687 ej mark 63 3750 - 64 3805 - 65 3849 - ~100% load density 66 3903 - 67 3980 - out of room for powder H4350 54 3528 55 3566 56 3612 57 3654 58 3698 59 3759 60 3796 ej mark 61 3855 - 62 3915 - 63 3977 - bolt lift ~95% load density Shot 3 shot groups at 100yds with H4350 in .5gr increments from 59-61.5gr. Almost all groups were around half moa except for 61gr at 1”. Testing was done with a suppressor attached. Best group was .4” at 59gr with a velocity of 3760. Brass lasted 8 firings here. 61.5gr shot .6” at 3880 fps. Brass lasted 3 firings. H4350 looks like a good powder for this case. For the conditions 9cl 12mph wind and slight mirage I thought they shot pretty good and should do much better in more ideal conditions. Not to mention the round count on my barrel is pretty high. Definitely a step up in velocity from the 92gr HH’s I tested last year. I started pressure testing H4895 also but haven’t finished yet. It looks like it will be to fast for this combo with a lower load density to. Should finish out 100-200 fps behind h4350 Also had a 3/4” hard-end steel plate at 100yds that I put a 90gr hammer into at 3900fps just for the heck of it. It almost made it all the way through! Now I just need to test them out on game. [/QUOTE]
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