Ddraig 0 Posted January 1, 2010 Report Share Posted January 1, 2010 Hi All Happy New Year Just got my FAC and looking to buy a .17HMR prob a CZ varmint 20". Have seen quite a few advertised with 16" barrels. Would prefer my rifle to be as accurate as possible. (yes it down to the shooter as well). Can anyone who has shot both 16 and 20" barrels give me some advice. Quote Link to post
halamrose 24 Posted January 1, 2010 Report Share Posted January 1, 2010 I've been wandering about the same question and found a lot to read at http://varmintal.com/17hmr.htm including a graph of velovcity for differant barrel lengths and these figgures: Bullberry Barrel Length vs. Velocity DATA 22 inch = 2517 fps, 103 fps spread 21 inch = 2523 fps, 66 fps spread 20 inch = 2515 fps, 86 fps spread 19 inch = 2538 fps, 83 fps spread 18 inch = 2522 fps, 41 fps spread 17 inch = 2505 fps, 43 fps spread 16 inch = 2492 fps, 53 fps spread 15 inch = 2477 fps, 27 fps spread 14 inch = 2432 fps, 70 fps spread 13 inch = 2419 fps, 32 fps spread 12 inch = 2387 fps, 57 fps spread 11 inch = 2338 fps, 45 fps spread 10 inch = 2276 fps, 45 fps spread I guess the other factor in your thinking should be to find the ammo which suits your patricular rifle. I'll be interested to follow this discussion. May I add an extra question: Does it make a differance to accuracy to have a stainless or steel barrel? Cheers, Halam Quote Link to post
coldweld 65 Posted January 1, 2010 Report Share Posted January 1, 2010 It makes no difference at all in accuracy in a hunting rifle . Quote Link to post
dave1372 83 Posted January 1, 2010 Report Share Posted January 1, 2010 Smaller barrels come in handy if you are doing any shooting out of your car. Quote Link to post
donkdaniel 236 Posted January 2, 2010 Report Share Posted January 2, 2010 i do a lot of shooting down in your patch with my mossberg plinkster reasonable priced gun and with the tacktical stock aiot easier to handl never had a problem with accuracy 18" barrell pm me if you want to meet up and have a go i use vmax 17grs and thay are spot on also i know for a range i use close to you ur lucky ive got to travel down from neath to use it anyway good luck give me a pm if you need any help chris Quote Link to post
Ddraig 0 Posted January 2, 2010 Author Report Share Posted January 2, 2010 Hi Thanks for replying. Re ammo suitability for rifle. Am a member or HMR17.net please see this memo below from that website "CCI, Federal, Winchester, Remington and Hornady all loaded here at CCI in Lewiston, Idaho with a V-max bullet are identical, with the exception of tip color. Manufactured on the same equip, to the same ballistic specs, using the same components other than color of the tip of the bullets. Obviously the shellcase 'head stamp' and packaging would be different on the various products. " Linda Olin CCI/Speer Technical Services 2299 Snake River Ave. Lewiston, ID 83501 Therefore it should make no differnence which ammo? re accuracy some shot will be up to 125 m/yards Quote Link to post
jamie g 17 Posted January 2, 2010 Report Share Posted January 2, 2010 dont let that fool you mate the different ammo do make a difference regardless what is made at same factory. cci ammo and winchester shoot ok in my annie. the red tip honday shoots well but the federal are the best. tigher groups from them then anyother ammo in my rifle. 16 inch barrel will be fine. Quote Link to post
Deker 3,478 Posted January 2, 2010 Report Share Posted January 2, 2010 I've been wandering about the same question and found a lot to read at http://varmintal.com/17hmr.htm including a graph of velovcity for differant barrel lengths and these figgures: Bullberry Barrel Length vs. Velocity DATA 22 inch = 2517 fps, 103 fps spread 21 inch = 2523 fps, 66 fps spread 20 inch = 2515 fps, 86 fps spread 19 inch = 2538 fps, 83 fps spread 18 inch = 2522 fps, 41 fps spread 17 inch = 2505 fps, 43 fps spread 16 inch = 2492 fps, 53 fps spread 15 inch = 2477 fps, 27 fps spread 14 inch = 2432 fps, 70 fps spread 13 inch = 2419 fps, 32 fps spread 12 inch = 2387 fps, 57 fps spread 11 inch = 2338 fps, 45 fps spread 10 inch = 2276 fps, 45 fps spread I guess the other factor in your thinking should be to find the ammo which suits your patricular rifle. I'll be interested to follow this discussion. May I add an extra question: Does it make a differance to accuracy to have a stainless or steel barrel? Cheers, Halam Just had my new .22WMR chopped to 19", hope the same holds true for this calibre, but as I'm probably never going to be able to check, who knows! Seems to work ok though! Quote Link to post
donkdaniel 236 Posted January 3, 2010 Report Share Posted January 3, 2010 dont forget youve got a moderator to go on top of whatever barrell you go for if you dont it will be like a cannon going off Quote Link to post
Ddraig 0 Posted January 4, 2010 Author Report Share Posted January 4, 2010 Thanks all Bought myself a cz varminter full barrel 20"? and SAK mod. Not tried it yet will have to wait till weekend. B*****y snow. Richard Quote Link to post
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