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polymer tip
Polymer fracture is the study of the fracture surface of an already failed material to determine the method of crack formation and extension in polymers both fiber reinforced and otherwise. Failure in polymer components can occur at relatively low stress levels, far below the tensile strength because of four major reasons: long term stress or creep rupture, cyclic stresses or fatigue, the presence of structural flaws and stress-cracking agents.
Formations of submicroscopic cracks in polymers under load have been studied by x ray scattering techniques and the main regularities of crack formation under different loading conditions have been analyzed. The low strength of polymers compared to theoretically predicted values are mainly due to the many microscopic imperfections found in the material. These defects namely dislocations, crystalline boundaries, amorphous interlayers and block structure can all lead to the non-uniform distribution of mechanical stress.
Sierra Tipped MatchKing (TMK) Bullets 22 Caliber (224 Diameter) 60 Grain Polymer Tip Boat Tail
Box of 500
$120
FTF Fishers Landing Fred Meyer on se 164th Av East Vancouver ///// Or if we can meet up when I'm out and about I like to make easy if I can.
Will ship at cost...
If you want them...
.243 Win Ammunition, Winchester Ballistic Silvertip, 95gr Polymer Tip, 20 Rds/Box. Brass case, boxer primed.
As much as I hate to sell ammo, life sometimes takes priorities over hobbies.
$50 per box, (5) boxes available.
FTF near Tigard/Tualatin. Not willing to ship at this time.
Thanks...
.223 Rem Ammunition, Winchester VarmintX, 55gr Polymer Tip, 20 Rds/Box
Brass case, boxer primed.
As much as I hate to sell ammo, life sometimes takes priorities over hobbies.
$40 per box, (6) boxes available.
FTF near Tigard/Tualatin. Not willing to ship at this time.
Thanks for looking...
I have 500 400 200 rounds (4-50 round boxes) available of 5.7 X 28mm FNH Polymer Tip V-MAX, 40 grain made by Federal for trade
Looking to trade for 9mm fmj (boxed 600 rounds ) or 556 fmj (boxed 500 rounds )
Brass cased ammo only
Cash price $300
Thank you :)