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View Full Version : cronograph work today


big jon
05-09-2006, 3:56 PM
i did some cronograph work today . i made some match ammo for my pss in 308 i want to do some lone range shooting and my brother told me that i need to use math grade everything, so i did, fed match primers,varget powder,sierria match king 175gr bullets,cleaned the brass primer pocets,made sure the cases were all the right lenth,weighed all the cases and separted them to within .5 of a graine you get the idea. well i think it payed off heres what i got. loaded 45gr varget,175 sierria on top
1.2716
2.2736
3.2728
4.2734
5.2714
av,2725
es,24.54
sd,11.18
my brother told me that sd,of 11.18 not to bad,i was glad to hear that because this is alot of work....
side note i made some match rounds for my mod 10 6in 38spc i got a sd, of 11.13 at 1089fps and when i shot the same rounds thry the mod 13 357 4in
i got a sd of 42.76 at 956fps??? my brother thinks that the differce maybe because the cylders are deeper in the mag??
any ways i had a good time shooting today me and the 1886 killed a ton of rocks iam sure they are still shaking in fear of being vaproised with the 45-70 300gr,jhp going 2000fps,that smoke was a rock...
http://i52.photobucket.com/albums/g23/jhunter63/IM004235.jpg
http://i52.photobucket.com/albums/g23/jhunter63/IM004236.jpg
his is a pic of the range i have up the road,we have another area for longer shots,