#11
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Interesting On the bottle/tub of powder it has a sticker saying Formerly (AA1680) and the Importer says its the same stuff ?.
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#12
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Quote:
I am also on the 11 reload of the Hornady brass without loosing any to splits , I have annealed after 3 firings. But i am moving onto fire formed RWS brass , which i am on 10.5grn of DO63 to form a very good case, anymore they split, any less they dont form too good. |
#13
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I just loaded 5 more of the 25gr Hornady VMAX. I dropped the charge .3 gr and seated the bullet to just over SAMMI. Maybe it needs the jump. Thinking back, the 60 VMAX in .223 did something similar and didn't come together till I substantially increased the distance to the lands.
We shall see. I will report after I shoot these. v/r rch |
#14
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25 gr VMax
Are you sure that you have a 9 twist barrel? Might check to see if it actually has slower twist. My 17MIV 10 twist barrel will not stabilize the longer shank 25 gr VMax, but like yours will stabilize the Hornady 25 gr HP.
Chuck |
#15
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I think I already mentioned this, remove the plastic tip on those Vmax 25's and you might remove the instability issues. Pull them, cut with diagonal cutters, etc,.
Trust me, it has worked on a few 22 tipped bullets, might work for you as well. Sierra suggested it to my FIL and the Tech said it works most of the time. Allen |
#16
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Ok, resolved. My CZ-527-V 17HH will shoot the Hornady VMAX 25 to .5" groups.
It was the jump. I dropped the COL of 1.480" (.17 comparator insert) down to 1.425" (.17 comparator insert). This is a decrease in COL of .055". I was still a touch over the SAMMI, but, not much. I decreased the powder by .3 grains to account for the deeper seating. I just shot a Very Honest .5" (edge to edge, not adjusted) 5 shot group at 100. My load today was as follows: Hornady Case trimmed to 1.34", Fed GM 205, 11.3gr CFE-BLK, and Hornady 25gr VMAX seated to 1.425" (.17 comparator insert). I will take my chrony next time and see where I am at velocity. Today, the primers are nicely flattened with no pressure signs. I need to rename this thread "MAN, those Hornady 25gr VMAX bullets shoot good in my 527-V". Thanks to all who helped with this. v/r rch Last edited by rhouser; 11-01-2017 at 08:44 PM. |
#17
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Im glad you got sorted ;-)
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#18
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#19
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Nice to see you got it worked out, I was surprised to see you having problems, as I know of 6 or meow CZ .17 hornets that will, shoot the 25g v-max.
both my CZ .17 hornets will shoot the 25v-max, but I don't bother, as they are for my .17 fireball, its get the call on bigger varmints, and long range work, Good info for others, who may have problems. |
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