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10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 9/10/2005 9:40:29 AM EDT
I did a search but couldnt find numbers for chromelined, 20" barrels. By any chance, has someone made MV tests with this ammunition? Possibly even with a 1:9" or 1:7" twist rifle?

Regards and thanks,
Matt
Link Posted: 9/11/2005 4:13:37 AM EDT
Matt

Don't have a chrono (hmmm, that's an idea, will drop a hint to my son about what he can get me for Christmas!)

Link to Federal's ballistics info, check out FAE loads. I believe all info from a 24" barrel (standard for SAAMI tests), so deduct about 120 fps (approx 30 fps per inch of barrel length) for a 20".


http://www.federalpremium.com/default.asp?pg=27&firearm=1

Joe
Link Posted: 9/11/2005 8:34:12 AM EDT
Thanks for the hint, although I am aware of this rule of thumb method. It really bugs me that I dont find "hard numbers" on some ammos, and the 62gr AE is one of them .

Thanks anyway!!

Regards!
Matt

P.S.
chrono as a xmas present huh ?? good idea.. only need to find someone getting it for me
Link Posted: 9/11/2005 10:19:21 AM EDT
I got an avg velocity of 2861fps out of my Colt 20in.
Link Posted: 9/11/2005 10:41:46 AM EDT
Thanks 5pins!

Regards,
Matt
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