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#1
08-23-2013, 12:49 PM
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I think the crony can be a good thing, sometimes.
The .45 Colt loads that I worked up with the max load that I tried had an extreme spread of 12fps and a muzzle velocity of 1,173 fps using a 300grn Hornaday XTP. I thought that was very consistent.
Then I tried the load that was 1grn liter by weight with the same bullet and got 1,276 fps with an extreme spread of 4fps. Those were the best of the five loads I tried with that powder or any other. I used the same 4fps load on a 270grn Kieth bullet and didn't crony that one. I was afraid to. The first time that I shot it, I cut a 4x4 fence post in half with one shot. My boss wanted to try it caused he loved his .44 Mag's. He dropped the hammer on one round and the look of shock on his face was priceless. I told him there were still 2 more rounds in it and he just handed me the the 4 5/8" barrel Blackhawk back and so no, one round was more than enuff. Loved both of the loads with the 300 grn Hornady XTPand the 270 grn Kieth. Both loads also shot beautifly from 2 different lever actions a 20" barrel carbine and a 24" barrel rifle. The rifle was shooting the 300grn at 1,900 +fps on the crony with the hotter load. The lighter load in the 1,700 +fps range. Got to love it. The crony helped a lot on the initial load work but finished with out one. I could go both ways, and not feel bad about it. Bulletpusher
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Bulletpusher Archer's do it Standing Up! God's Not Dead! The Republic of Texas In life, you won't go far unless you know where the gopher holes are. "From the Sayings of Wisdom from the Clan Varley" Lo do they call to me. They bid me take my place among them in the Halls of Valhalla, where the brave may live forever. "My greatest fear is that my sins will come back to haunt me", Mel Gibson from the Patriot. 
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#2
08-29-2013, 12:25 PM
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A chrno is a real piece of equipment for a reloader if nothing else you find the factory ballistics are 90% BS. If you base your expected velocity on factory load or duplication load data you are going to get surprised. But it really helps to see how the powder charge is progressing from powder to powder and it does not take long to figure out that with some powders 2 or 3 grains gives you little increase in velocity.
But if you are working sub sonic loads a Chrono is an absolute must because you have to get below the high 100% in the extreme spread so you are always sub. Also if you want to shoot in matches with major and minor classes, you need to know for absolute sure. It is a range tool that is very useful just like a spotting scope. Ed
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The three Rs: Respect for self; Respect for others; and responsibility for all your actions. "Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery? Forbid it, almighty God! I know not what course others may take, but as for me, give me liberty, or give me death!"
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