Originally Posted by deathkricket
Thinking about what i wrote i now see it is confusing, the point i was trying to get across was both the blazer and police ammo were 124g FMJ with the same BALLISTICS ( to include powder load) but one have a pressure warning but no +p and the Blazer not have anything if that makes sense.....i know what the grain is
First off, the term "police ammo" can be a marketing ploy to convince you it is some how "better" than civilian ammo. Just because it says police ammo does not mean it is actually used by police, anywhere.
Where did you get the information about the ballistics? You are assuming they have the same ballistics which would require they have the exact same bullet or bullets with the same ballistic coefficient. If they had the same "advertised" velocity, it is just that...advertised. How they actually perform in a given firearm depends.
Unless they are both made by CCI/Speer they almost assuradely do NOT have the same powder charge. CCI/Speer uses powder made to their specifications. It may be the same powder tht is used by company "B" but in all likelyhood not. It is powder made for them to their specifications.
+P is a term that is defined by SAAMI, but misused by many ammo makers. SAAMI specifies a max chamber pressure for 9mm ammo as 35,000 PSI and 9mm +P as 38,500 PSI. There is no standard for +P+. If ammo is loaded to 35,001 PSI it should be labeled as +P. If a company normally makes ammo that generates 32,000 PSI and this load is 34,500, they might label it as having "more pressure". It is not, however, +P.
Not all ammo or firearms manufacturers are SAAMI members and do not neccessarily comply with SAAMI reccomendations.
To complicate matters, not all calibers even have a "+P" standard. I have seen .40 S&W ammo labled +P when no such standard exists. I have heard people refer to .45 Colt (Long Colt) +P. There is no such animal. If ammo is loaded hotter than the "standard" some are inclined to label it +P. It may be