This is a discussion on Reloading for Accuracy (9mm) within the Reloading forums, part of the Defensive Ammunition & Ballistics category; Originally Posted by AndyK If you want accuracy as your priority, use a better quality than extreme. You would be better of with quality FMJ. ...
I remember reading an article about trimming 9m/m cases to a uniform length will make a difference in accuracy. Never tried it because I am satisfied with what I get from my 9s.
Just my guess but if I were going to load for accuracy only in a semi auto handgun, I would start with matched cases. Trimmed and beveled to be identical. Even the flashholes should be identical. I would be looking at lead bullets that were properly fitted to the bore of the gun,[you may need a custom sizing die to get the best fit.] And you are going to have to play with burn rates of powders to get something that is completely consumed before the bullet leaves the barrel. [ That's why TG, HP38, and Bullseye come to mind].
Find some books on Bullseye competition and pay close attn to the chapters on reloading. Revolvers were the King of that sport for many years because they allowed the use of flat nosed bullets. the wadcutter bullets cut a nice round hole in the target. That nice round hole is so much easier to score, and measure groups from. But they have made some bullets for semi auto pistols to shoot in bullseye competition that had round noses but still had a sharp shoulder to cut the target.
Good luck DR
Get a progressive, load a ton of rounds and work on your shooting. Much bigger gains to be made there. No one bench rests a 9mm. Really want to improve your trigger control and shooting ability in general? Get a S&W 986.
I think you'll find bullet length (related to bullet weight) to have a greater influence on accuracy than your selection of powder or primer. Further, the bullet that gives the best accuracy in one 9mm probably won't do the same in a different brand gun. Chamber dimensions, barrel length and rifling twist rate will all influence your net accuracy to some extent. A friend who is a great USPSA competitor swears by 135 gr bullets and Vihtavuori powder for his CZs but uses a different combination for his 9mm 1911.
I'm curious as to your specific goal. Is this an "academic" experiment (for the sake of experimentation), are you trying to achieve X-ring accuracy for bullseye shooting, or what I call "practical" accuracy for the action games?
AZCDL Life Member
NRA Patron Member
NROI Chief Range Officer
Absolutely. I already figured as much as far as creating different loads per gun. As far as case trimming and OAL, does that also differ per gun (within the same caliber)?
Retired USAF E-8. Curmudgeon on the loose.
Lighten up and enjoy life because:
Paranoia strikes deep, into your life it will creep. It starts when you're always afraid... Buffalo Springfield - For What It's Worth
a poor plan that is well executed will produce better results that a good plan that is poorly executed.
This is America. I have the right to go places. You have the right to stay home. You have the right to be upset about me going places. I have the right to not care.