Bought a box of these and their 165 grain HPs recently from Nachez...

https://www.natchezss.com/accura-premium-powerbond-bullets-40-cal-400-165-gr-fp-500-ct.html

With the bullets I have been using, a 155 grain Berry's and 165 grain Speer Gold Dot, groups run in the area of 3" at 20 yards if I do my part from any of my 10mms... Have been using 9 grains of PowerPistol for velocities a little over 1200 fps. Put the same charge behind these bullets and have had tighter buckshot patterns from a cylinder bore 12 ga!!! Ran the same patterns from a G20, G29 and Kimber Stainless Target II...

A few days ago tried 7.0 grains of Unique and at 15 yards the "group" ran 16" from a Glock 20SF/3 with a Lone Wolf barrel. Shot the Gold Dot load at the same distance and got a 3" group...  Moved the target frame up to 10 yards and with a Glock 29/3 with stock barrel the pattern was about 12"...and again a 3" group for 5 rounds of the Gold Dot load.

My friend's Glock 29/4 with a Lone Wolf barrel was able to keep all the shots on a 6" paper plate but in 50 years of pistol shooting I have never seen a bullet this bad. And the holes in the targets are round...

I have measured both bullets and they are round and the same diameter as the Gold Dots and Berry's...just no clue why they are acting like this...

Has anyone else tried them...

Bob

Some of the plated bullets leave a lot to be desired.  Did you measure a few of them to see the actual diameters? 
Glock factory bores can be 0.4015" - 0.4020" this is large by normal 10mm/40 standards.  some barrels are tighter at 0.3990" (that Kimber would likely slug out at the 0.3995")  and 0.4000" (normal).

I shoot my own cast bullets and size mine to 0.4015" which have shot well from my factory barrels but are even better from the aftermarket barrels...

With all of that said you may want the try a bench rested sighting, for accuracy testing.  Combat sights are not as fine as a set of target sights.

but, but, but--- they say they are the most accurate plated/bonded bullet on the market--- same guys make the power belt bullets for ML ---I have found the power belt bullets to indeed be accurate, but they use dead soft lead which will not hold together on impact on an animal

Just took some test rounds out to the range...

Shot several different loads and bullets at 10 yards from a Glock 20SF/3 with Lone Wolf barrel. I was able to keep all the Accura FP bullets on a 9" paperplate in probably a 6" group. 

Then loaded up some 165 Ranier FP plated bullets and put them all in a 2" square...and the same with some 155 Berry's FP-HB.

In looking closely at all three targets the holes of both the Ranier and Berry's are perfectly round...I am now seeing that the Accura are already starting to yaw at 10 yards.

Two weeks ago when I was shooting them at a leaf on the bank behind the target frame to see where they were landing since they were not hitting the steel target, some of the bullets hit as far as 3' from the leaf at 25 yards. The group had to be 5' in diameter...

I'm going to contact Accura and send them close up pics of the targets and describe how bad the accuracy is... They are going to want to the bullets back to check them before they replace them but since they shoot ok in my friends gun he said he would just use them up for close, under 10 yard, practice...

Bob

I've taken two deer with the 45 cal 195 grain Power Belt bullets yes the do break up even in smaller deer. 

Just finished the letter to Accura...

A few weeks ago I purchased two 500 packs of your bullets from Nachez Shooters Supply.

The load used was the same as I had been using with a 155 Berry's plated bullet and a Speer 165 grain Gold Dot...9.0 grains of PowerPistol.

At 23 yards, using a Glock 29 with stock Glock barrel, the 165 Gold Dot load ran about 3" for 5 shots. I then loaded five rounds for the load using your bullet. The first round failed to hit a steel IDPA target, the second round was the same. Only one of the next three rounds hit the steel and that was way low left.

I then aimed at a leaf on the berm behind the target and had my friend spot the impacts. The first round hit 3' from the leat low and left. The second round right of the leaf about a foot...and so it continued never even coming close to the leaf.  Thinking something was wrong with the gun I put 5 of the Berry's plated bullets into the magazine and proceeded to hit the leaf almost every round.

The bullets continued to display horrible accuracy with two other 10mms. A Glock 20SF/3 with a Lone Wolf Barrel and Kimber Stainless Target II. The first two shots with the Kimber hit the steel target low left about 1" a part...the third round went 6" over the head of the target a good 2' from the first two shots. The next two shots failed to hit the target.

Thinking that the speed (abut 1225 fps) was too fast for the bullet I changed the load to 7.0 grains of Unique which should be down about 1100 fps.

Using the Glock 20SF/3 at 15 yards the group was 16". The next group using the Gold Dot HPs was 3". Bringing the target into 10 yards and using the G29/3 produced about a 6-7" group.  Using a friends G29/4 with a Lone Wolf barrel shrank the group just slightly but all the shots were on the 6" paperplate.

Today I tried the 165 GD HP, your FP bullet and some Ranier 165 FP bullets that I purchased at the same time as I bought yours all with 7.0 grains of Unique. Targets were shot at ten yards. It is apparent when looking at the holes in the targets that your bullets are already beginning to yaw at 10 yards.

I have already used up all the PFs and just have a 100 or so of the HPs left.  My friend is going to use them up in his gun for some close rage practice where accuracy is not paramount.

Just to let you know you have a problem out there....



I also sent them some pics but no longer have third party hosting so can't show them here.  The photos clearly show that the bullets are yawing when they hit the paperplate...

No more for me...going to stick with Berry's from now on.  Ranier is also excellent but I like the Berry's TC-HB design best...and they are cheap.

Bob

And Shadow...yes, I did measure them and they came out right at .400 just like the Berry's, Gold Dots and Ranier...  They even miked out round...

Just my guess but I have a feeling that being short and squat compared to the other bullets they just are not stabilizing correctly or the bearing surface isn't square to the base.

Quote from: RJM52 on November 03 2017 11:42:23 AM MDT
And Shadow...yes, I did measure them and they came out right at .400 just like the Berry's, Gold Dots and Ranier...  They even miked out round...

Just my guess but I have a feeling that being short and squat compared to the other bullets they just are not stabilizing correctly or the bearing surface isn't square to the base.

Short squat should stabilize better than long pointy ....sonetimes longer bearing length will improve accuracy but the shorter the bullet, the more stabilized it would be no matter what twist rate ....longer heavier require faster twist rates

The actual straight bearing surfaces do tend to provide better stability in pistol cartridges, one of the reasons I like the 200 grain (like XTP) weights for 10mm.

What could be happening with the soft plated bullets is they could be sliding across the polygonal rifling as it tries to engrave.  If that is happening, that can reduce the diameter and bearing surfaces and reduce the stabilization.

Quote from: The_Shadow on November 03 2017 03:45:45 PM MDT
The actual straight bearing surfaces do tend to provide better stability in pistol cartridges, one of the reasons I like the 200 grain (like XTP) weights for 10mm.

What could be happening with the soft plated bullets is they could be sliding across the polygonal rifling as it tries to engrave.  If that is happening, that can reduce the diameter and bearing surfaces and reduce the stabilization.

Yup, heard the same thing can happen with poly barrels and coated bullets

...problem with that is that they have been just as inaccurate out of Lone Wolf barrels as OEM barrels...

Received a response today from Accura Bullets. They were very disappointed and concerned about my experience, asked for the lot numbers of the bullets involved and for my address to send some bullets of other calibers I shoot...

The writer also stated he was going to test the bullets involved asap to see if they get the same results.

Can't ask for any more than that...

Bob