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Alex S.'s Blog: |
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December 23rd, 2009
Hope everyone's
shooting season went somewhat like they planned!
Well, onto the
meat of the matter, so to speak. A while ago, I was able to
comprehensively test the new AIM Projectiles 9mm 147gr RN.
For
this test, I was lucky enough to be able to use the barrel fixture at
Infinity Firearms in Grand Prairie, Texas. The barrel fixture is
basically a solid structure that holds a barrel in place, with a
removable firing assembly consisting of a breechface, firing pin, hammer
and mainspring. What this allows is for an accurate mechanical and
repeatable test of the barrel and ammunition's capabilities. The human
element is removed from the picture, as well as fit, finish or design of
a firearm. The shoot tube distance is 25 yards.
I shot a 5 round
control group using the excellent Montana Gold 147CMJ bullet. This is a
premium jacketed bullet, as opposed to our AIM premium plated bullets.
For clarification, a jacketed bullet differs from a plated bullet in
construction. A jacketed bullet is usually comprised of an extruded soft
lead core, over which a copper disc is pressed. A plated bullet starts
off with a hard lead casting, over which copper is electroplated on in a
bath. Generally the jacketed bullet has the edge in uniformity and
accuracy due to it's construction. The downside is the high cost of the
manufacturing process. AIM Projectiles is looking to change the way we
look at plated bullets. In my opinion, there is no reason AIM bullets
will not match jacketed bullets in accuracy. Ongoing research and
testing is official company policy to improve the product. I see no
reason we will not succeed!!
For the tests, I simply used a
random Infinity Firearms Ultimatch 5" barrel from inventory. They are
made on the premises, hence the barrel fixture. The Montana Gold control
group shot a 5 shot group into .988". The AIM 5 shot group measured
1.148", also using the identical load of Universal Clays, in a
Winchester once fired case with a Winchester small pistol primer. This
is very, very respectable for a plated bullet.
Improvement is
ongoing. We have just tried a different plating process, and I'm
positive this will lead to better results. I will test the new lots
shortly. I will let you all know as soon as the results are in. I'm
predicting a sub 1" group for the 147gr 9mm's. I will also test the new
.40 bullets. Hang tight, we'll get there!!
In the meantime, I
wish all you folks in shooterland a happy and blessed Christmas, or
Holidays if you prefer! As well, a prosperous New Year filled with A
zone hits of course!
ALEX
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| Greetings for March 16, 2009 A glorious day. Warm and sunny. Perfect day to head out to the range and shoot OUTSIDE. Sure is wierd, though. There's a giant glowing disc in the sky, and
it burns!!! Get it off me!!! Let me digress.
Shot groups with the new lot of Aim .40 180gr truncated cone bullets.(TRC) Lot# 2808
Shot them with Infinity .40 AET barrels, and iron sights. This will explain the silly flyers, which for once are mine and not the bullets. The results were astounding: Consistent groups, no
trace of plating separation that plagued the early stuff. In my opinion, these are as accurate as the Hornady HAP's I used to use for matches. I know because I shot them side by side, same
load, same barrels. In other words, I've never known a plated bullet to be this good. And, development is continuing. There is hardly room for improvement, but improved they will be. I can't
wait till the round nose flat point comes out. ( RNFP) They should be better in every way, especially feeding. Nothing feeds better in a .40 than a RNFP. Will keep you updated on the 9mm's.
Will shoot those outside maybe Wednesday.
Alex. |
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- Here are some recent tests with 9mm, 7.9grs, 3N37 - the one on the left is 50 rounds, the one on the right is 100 rounds.
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