Polymer tip reload question
- Thread starter Liquid_Snake
- Start date
Yes, use the same data as the "normal" projectile. The bullets that require special data are the solids copper one. They are harder to engrave and will raise pressure. The poly tip has no bearing on the pressure, only on external and terminal ballistic.
Hope that help.
Hope that help.
Liquid_Snake
I was just looking at my Sierra manual for 55 grain bullets for the AR15 rifles, and on the same page it lists 7 different bullet types. The most important thing to remember is what the manual tells you, any time you change a component for your same load you reduce by 10% and work up again.
Changing brands of cases and even the same brand of case from different lots can effect chamber pressure, with bullets, and primers the same thing applies.
I have been reloading for over 46 years and any time I work up a new load I start at the suggested starting load and work up. After firing, each case is closely inspected and the primer studied and this is where your pressure estimates are gathered by looking at your primers as the load increases. As you work up your load you reach a point where the primers are no longer protruding from the rear of the case. At this point the chamber pressure is great enough to cause the brass to stretch to meet the bolt face. Here is where you start paying more attention to the primers and looking for signs of excess pressure. Looking at factory loaded ammunition and the fired primers will give you a base line on what to look for.
Again, if you change components reduce your load and work up again and study your fired primers.
And remember the green polymer tip projectiles are only for shooting Zombies in the head, the red tips are for shooting everything else.
You will need this target below to practice with during your Canadian winters when the the Zombies freeze and are hidden under the all that Canadian snow. The good news is when your playing Hockey on a frozen pond you only have to worry about someone on the opposing team biting you and chewing off your face.
I was just looking at my Sierra manual for 55 grain bullets for the AR15 rifles, and on the same page it lists 7 different bullet types. The most important thing to remember is what the manual tells you, any time you change a component for your same load you reduce by 10% and work up again.
Changing brands of cases and even the same brand of case from different lots can effect chamber pressure, with bullets, and primers the same thing applies.
I have been reloading for over 46 years and any time I work up a new load I start at the suggested starting load and work up. After firing, each case is closely inspected and the primer studied and this is where your pressure estimates are gathered by looking at your primers as the load increases. As you work up your load you reach a point where the primers are no longer protruding from the rear of the case. At this point the chamber pressure is great enough to cause the brass to stretch to meet the bolt face. Here is where you start paying more attention to the primers and looking for signs of excess pressure. Looking at factory loaded ammunition and the fired primers will give you a base line on what to look for.
Again, if you change components reduce your load and work up again and study your fired primers.
And remember the green polymer tip projectiles are only for shooting Zombies in the head, the red tips are for shooting everything else.
You will need this target below to practice with during your Canadian winters when the the Zombies freeze and are hidden under the all that Canadian snow. The good news is when your playing Hockey on a frozen pond you only have to worry about someone on the opposing team biting you and chewing off your face.
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BigUglyMan
CGN Ultra frequent flyer
- Location
- New Scotland
Really? Why does Nosler list 46.0gr of Varget with a 165gr Accubond, Barnes list 45.5gr of varget with a 165 TSX and Speer list 45.0gr of Varget with a 165 Deep Curl? There must be a reason. Perhaps bullet construction is relevant after all?
You're allowed to make stupid comments, but please refrain from making dangerous ones. Some unfortunate noob might mistake your post count for actual knowledge.
BigUglyMan
CGN Ultra frequent flyer
- Location
- New Scotland
And I'll source the numbers too, lest someone claim I'm being a big meanie or fabricating data to be argumentative.
http://www.speer-bullets.com/pdf/308Win_165gr_2027_DC_DataFile.pdf
http://www.barnesbullets.com/wp-content/uploads/2007/02/308WinWeb.pdf
http://www.nosler.com/308-winchester
http://www.speer-bullets.com/pdf/308Win_165gr_2027_DC_DataFile.pdf
http://www.barnesbullets.com/wp-content/uploads/2007/02/308WinWeb.pdf
http://www.nosler.com/308-winchester
- Location
- Brandon....
Every reloading manual will give you different numbers!! But never forget the golden rule, WORK UP YOUR LOAD From your max load drop at LEAST 10%!!! Be safe Gents.
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