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240 cobra

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02 January 2008, 02:11
Joel D. Espinoza
240 cobra
Hi, I'm new to this fourm and would like a little help. I have a 240 cobra, a 220 swift necked up to 243. The problem is I can't find aany new loading data on it. Ackley has this round listed in his books, but there is no new data on the round. I was wondering if anyone on this fourm has on of these and if so does he/she load any of the new powders for it? any help will be greatly appreciated. Thanx again and a good new year to all. Joe
02 January 2008, 04:39
Idaho Sharpshooter
just start with 243 data and work your way up.

Rich
DRSS
Knowledge not shared is knowledge lost...
02 January 2008, 05:26
ramrod340
quote:
just start with 243 data and work your way up

My data shows the 240 Cobra at around 50grs the 243 at 54.7. If those numbers are right starting with 243 data might cause a problem. If the numbers are right take 243 Data and reduce by 10%.


As usual just my $.02
Paul K