Arm or ally 55g fmj, did a weight sort on 1000.

Shadow9mm · April 17, 2024, 10:17 AM

Arm or ally has a in house .224 bullet made for them, a 55g FMJ. I ordered 1000 to give them a try as they were right at $100 shipped to my door. Decided to do a weight sort for consistency. There were a few odd outliers on the low end, and the majority were in the 55.4-55.5 range. For bulk FMJ I am happy with it. Next up is load development, I will keep you all updated.

Here's a link, currently out of stock. https://www.armorally.com/shop/arm-o...lure-bulk-oem/

53.3-1
53.8-1
54.7-1
54.8-1
54.9-2
55.0-9
55.1-67
55.2-82
55.3-112
55.4-296
55.5-325
55.6-95
55.7-8

**Unclenick** · April 17, 2024, 12:22 PM

The very low ones may well have air pockets in them. Find the best load you can with 55.5-grain bullets, and then try a group that includes the two most extreme low-weight examples. If they have voids that aren't centered, they should jump away from the mean POA.

GGALLIN1776 · April 25, 2024, 05:56 PM

I'll have to check my "Bob's Bullets" for weight disparities, 1k was something like $110/shipped & they're pretty little pills. Great uniformity amongst the batch insofar as visual inspection goes.

Not sure of why they have the little micro nubbin on the tip of every projectile but they seem to preform well in the tests I've watched.

FrankenMauser · April 25, 2024, 10:43 PM

I'd put my money on 55.1-55.7, if I had to do so.
But 55.0 will probably group well enough with the rest of the 'heart' of that bell curve.

Those extreme lows, however, would be for very casual plinking.

I sorted 1,000 Hornady .243" 95 gr SSTs some years ago. Good weight distribution.
All usable.
1,000 total (exactly 1,000 - no extras

).
94.9 gr - 26 (2.6%)
95.0 gr - 95 (9.5%)
95.1 gr - 715 (71.5%)
95.2 gr - 151 (15.1%)
95.3 gr - 13 (1.3%)

I later bought something like 1,600 more 'blems' and sorted those. (No chart.) Bigger spread with some extreme lows and highs.
"Extreme weights" are used for pressure testing when developing new loads. The good stuff gets used for accuracy load workup and good loads.

--

April 17, 2024, 12:22 PM	#2
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,089	The very low ones may well have air pockets in them. Find the best load you can with 55.5-grain bullets, and then try a group that includes the two most extreme low-weight examples. If they have voids that aren't centered, they should jump away from the mean POA. __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle

April 25, 2024, 10:43 PM	#4
FrankenMauser Senior Member Join Date: August 25, 2008 Location: In the valley above the plain Posts: 13,443	I'd put my money on 55.1-55.7, if I had to do so. But 55.0 will probably group well enough with the rest of the 'heart' of that bell curve. Those extreme lows, however, would be for very casual plinking. I sorted 1,000 Hornady .243" 95 gr SSTs some years ago. Good weight distribution. All usable. 1,000 total (exactly 1,000 - no extras ). 94.9 gr - 26 (2.6%) 95.0 gr - 95 (9.5%) 95.1 gr - 715 (71.5%) 95.2 gr - 151 (15.1%) 95.3 gr - 13 (1.3%) I later bought something like 1,600 more 'blems' and sorted those. (No chart.) Bigger spread with some extreme lows and highs. "Extreme weights" are used for pressure testing when developing new loads. The good stuff gets used for accuracy load workup and good loads. -- __________________ Don't even try it. It's even worse than the internet would lead you to believe.

April 25, 2024, 05:56 PM	#3
GGALLIN1776 Member Join Date: April 24, 2024 Posts: 29	I'll have to check my "Bob's Bullets" for weight disparities, 1k was something like $110/shipped & they're pretty little pills. Great uniformity amongst the batch insofar as visual inspection goes. Not sure of why they have the little micro nubbin on the tip of every projectile but they seem to preform well in the tests I've watched.