With the right diameter drill bit shank to prevent the arbor press from going too far down and ruining the pellet, I stand the pellet up and smash it about 1 or 1.5thou. This spreads the skirt for a tighter and consistent fit in the breech.
By smashing Exacts down from 29thou tall to 27.5thou tall, I have spread their skirts enough to get a 10% increase in fps. A 10% speed increase gives you a 21% increase in fpe, regardless of speed.
Of course, speed is not important. Accuracy is.
This message has been edited by calvin2a on Jan 22, 2012 9:02 PM This message has been edited by calvin2a on Jan 22, 2012 9:01 PM
Your example is exactly what I am after. I have a particular gun that is very accurate with one type of pellet, and that one type of pellet has inconsistent head sizes. I will try and make one of your example. Photos much appreciated!
This gun shoots H&Ns good and have some good results with some other pellets but the JSB 18.1 and 15.9 give me the best results when resized. It takes a lot adjusting to get the dies just right. This is not a perfect way to getting a perfect pellet. It just makes me able to shoot pellets that I may have had to throw out.
******** Buy 3rd/4th gen FX Pumps for Superior quality and unbeatable 5 year factory Warranty.********
D I S C L A I M E R
JK's Airgun Forums, moderators, and administrators are not responsible for any problems that may occur from reading or using content posted on this forum, as they are the exclusive responsibility of two parties: the person who posted it and the person who acted on said posted information.Use of our forums by people under 18 years old is allowed only with legal guardian(s) present.