FULL METAL JACKET
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Anyone shoot +p with the shield? Feedback?
Thanks
Thanks
It's my personal opinion that not a lot is gained by using +P in such a short barrel. I think standard 124gr. Gold Dot or Rem. Golden Saber would be excellent choices and save you money to.
Paul Nowak said:When we redesigned the Ranger T Series of ammunition we widened the velocity window under which the round would expand to allow for the slower velocities that shorter than standard barrels produce. What this means is that if you own a standard or sub compact pistol the round should have adequate expansion. In 9mm I would recommend the 147 grain bullet as it loses a lower velocity percentage than the faster lighter bullet in shorter than normal barrels. This is because the bullet has more dwell time in the bore and has a greater opportunity to burn the powder before the bullet exits the bore. Powder that is burned outside the bore does nothing for velocity. The lighter faster bullets generally have more powder to burn and since the lighter faster bullets have less time in the bore they are not efficient burners of powder in the shorter barrels.
We increased the velocity window under which the round would expand by increasing the size of the hollowpoint, tweaking the jacket thickness and the depth of the cuts on the inside of the jacket petal segments.
Sincerely,
Paul Nowak
Senior Technical Specialist
Winchester Law Enforcement Ammunition
The discrepancy in energy and velocity between standard ammo and +P ammo is considerably less in a short barrel. Energy and velocity figures are from barrels that range between 4in to as long as 10in in some cases. The longer the barrel, the bigger the difference between standard and +P. The difference in a three inch barrel can be as little as 30 fps, generally considered insignificant. Manufacturers such as Speer make bullets specifically made for these lower velocity producing barrels and they are labeled SB. These are designed to expand at the lower velocity.
I use CorBon 9mm +P 115gr JHP in my Ruger LC9. CorBon likely makes the most potent factory ammo on the market. Specs are 1350 fps with 466 ft lbs energy. Check the specs on your ammo, which is not likely even close. And again in a lighter (3 ounces) and slightly smaller gun, it shoots fine and recoil is not excessive. Sure you can feel the difference in recoil between practice ammo with only 320 ft lbs energy, but for such powerful SD ammo, it is controllable and you can get back on target fast.
I have a Shield 40, and use CorBon 135gr JHP with 1325 fps and 526 ft lbs energy. The recoil on it feels about the same as the recoil on my 9mm LC9. This is due to the Shield being 3 ounces heavier and the bore axis on the Shield is 3/16 inch lower than that of the LC9. A lower bore axis results in less felt recoil.
I would disagree about this post. Testing shows a drop off in fps when you drop down in barrel length. In that case the shorter barrel would benefit from more powerful ammo, to offset the performance loss from the shorter barrel. I want to know that I am using the best SD ammunition, with the most stopping power. This is as long as I have practiced with that ammo, and know I can shoot well with it.
The S&W website FAQ states: "Use only commercially manufactured ammunition with internal ballistic pressures which are in strict accordance with the specifications of the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI)."
CorBon is manufactured to SAMMI standards. And no I don't work for or own any stock in CorBon. Several years ago I just Googled "best SD ammo", and CorBon came very highly rated in a lot of reviews.
Bob