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Post by jims on Jan 20, 2009 10:05:37 GMT -5
I have a .375 Krieger barrel I want to shoot sabotless. The lands are .366. I am able to push .366 bullets down a clean barrel but it takes up to 120 pounds of force. If I chill the bullets slightly it is easier. I have some .365 bullets that just fall through, even with knurling it seems hard to bring them up to size. I would think I need a die to slightly reduce the .366 bullets, any educated thought on the size I should get. Also Barnes has some .366 Triple-Shock X bullets. Will they resize or spring back too much as they are all copper? Most .366 (9.3mm) bullets I use are standard construction from Nosler etc.
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Post by jims on Jan 24, 2009 21:44:25 GMT -5
Those of you that have Lee dies, when you called them were they able to provide some guidance or suggestions on reduction sizes or does one just order and experiment until something works?
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Post by Harley on Jan 24, 2009 22:41:50 GMT -5
Jims, I can give you only an educated guess. Lee does not mention the fourth place (.000x) when accepting your die order. From your descriptions I'd say you need a die smaller than .366, so from Lee that would be .365, especially because you say your .365's fall through. I suppose that could result in the range of .3650-.3659). I don't know why your own .365 bullets won't knurl for a tight fit, but if I were you I'd order the .365. Are you using "bastard" files for knurling? Are you bearing down on them? It shouldn't take more than about three passes.
Harley
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Post by Dave W on Jan 25, 2009 1:25:46 GMT -5
Jim, the jacketed bullets I size spring back considerably more than the all copper Barnes or the Hawk bullets.
With my .4486 die, the 250SST comes out at .450. The .451 Barnes TEZ is approximately .4491, the .4515 Hawk approximately .4493.
These are approximate since I'm measuring with calipers, sorry no mic to give better numbers. Jacket thickness and construction effect spring back with my die.
The TEZ having to be knurled almost .001 to fit my bore does not give the same velocity as a jacketed bullet, using the same charge weight the TEZ was approx. 100fps slower, annealing the bullet gives comparable numbers with the same charge weight. If the .365's are all copper you might try annealing them to get the bullet to obdurate better on ignition.
Swinglock can make a bullet specific die for your barrel, but he needs the barrel to do it. Hope something here is of use.
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Post by rbinar on Jan 25, 2009 3:57:00 GMT -5
8-)You should be able to knurl a bullet .001" even if it has a hard jacket. How coarse are the teeth on your file? A larger coarser file will allow you to make bigger knurl and size up more for a smaller bore.
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Post by jims on Jan 25, 2009 9:06:57 GMT -5
Thanks for all the good information. I bought a series of files at an auction once, I think well over 100 so I have about every type and size it seems. I will just have to find some that work.
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Post by joe21a on Jan 25, 2009 9:55:18 GMT -5
Did you mic. the two bullets dia. or just go by the size they are said to be. If you did not mic. then do so as they may be larger or smaller the the box claims them to be. The .366 may actually be .368 or .369. and the 365 may be .364. The dia. of bullets does differ quite often.
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Post by jims on Jan 25, 2009 10:00:34 GMT -5
To joe21a: The bullets actually are near dead on with a mike and caliper, I realize that is not the best method to use as they could be out of round somewhat but they are .366 and .365. The Normas run .365 and they so state that, the Noslers etc. are .366. My barrels lands per the factory are .366, grooves .375.
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