.224 69 3GH

Hi Jake. I just bought and received 1k of your 69g BTHPs and am getting to start working up a load. I built a clone MK12, with an 18” FN barrel. I’m planning a MK262 clone, but will use your 69s instead of the sierra match 77s. I found your post from 2021, in which you said 24.6g of TAC pushes these 69s to 3150fps out a 24” barrel. You suggested you use the same load for 18” barrels.

What charge did you start with, before settling on 24.6g of TAC? I’m really interested in this ladder dev….

Has anyone gotten good results with H335 or AA2230? Currently those are the only powders I can find locally.

>Has anyone gotten good results with H335 or AA2230?

I’m having good results with X-terminator, which shares load data with AA2230. I have 8lb of AA2230 that I plan to use next. From what I’ve read, X-terminator and AA2230 were different powders years ago (prior to 2007? – don’t recall the year). Then, they became the same exact powder. For a time they were the same exact thing in different containers with different labels. Then, a few years ago a representative from Ramshot said they had diverged but still share the same burn rate and load data. He said AA2230 is supposed to be more temperature stable, while X-terminator has additives to reduce copper fouling. That’s what I’ve gathered anyway from researching online. One thing for sure is that they share the same load data.

I’m using a 16″ AR Performance barrel. My particular barrel runs a bit fast, about 40-50 FPS faster than a friend’s same model.

Wolf Gold brass
CCI 450
CBTO ~2.250″
X-terminator
LabRadar 72 degrees
5 shot average:
22.3 grains 2649 FPS
22.9 grains 2712 FPS

Both work well for me. 5 shot groups are generally around .8″ at 100 yards if I’m not screwing things up. This is from prone with a bipod and rear bag. I guarantee there is some shooter error involved.

Lately I’ve been working with TAC. I need to do more testing, but so far, the best charge weights are ones that produce similar velocity to my X-terminator loads.

Wolf Gold brass
CCI 450
CBTO ~2.250″
TAC
LabRadar 91 degrees F
5 shot average:
23.2 grains 2671 FPS
23.6 grains 2730 FPS

With TAC, my buddy is getting the same velocities using .4 grains more powder than I am. That’s in both his 16″ ARP barrel and 5 rounds he chrono’d with a 16″ PSA. My barrel seems to be the oddball. After considerable testing, he had settled on 24.0 grains of TAC (for 2730ish FPS depending on temperature). He then did a seating depth test by firing 5 shot groups at 50 yards. COALs were from 2.240″ to 2.260″ in .005″ increments. Surprisingly, they all shot about the same, with group sizes ranging from .40″ to .46″. These bullets seem to be tolerant of different seating depths, at least in his barrel. I gave him 5 of my 22.3 grain X-terminator loads during that test, and my load in his rifle was his second best group of the batch even though it clocked 40 FPS slower than I get in my rifle (his avg was 2611 FPS with air temp of 74 F).

I fired a 5 round group on paper with 23.6 grains of TAC at 500 yards (prone, bipod, rear bag, 1-6x scope). Vertical spread was 3.8″ and about double that sideways due to varying wind. My friend also fired a 5 round group using the same charge with his rifle at 500 yards with vertical measuring a touch under 5″. So, these loads hold up at distance.

Overall, I think these are great bullets for the price. I have one nitpick that I haven’t seen anyone mention. The bases are sharp instead of rounded where the boattail transitions into full diameter. This isn’t the case with any other bullets I’ve used. The sharp edge tends to scrape the insides of the case necks, and I think is also responsible for the higher runout I get with these bullets than any others I load. Some seat quite crooked. I’m using a Forster 3-in-1 trimmer, which provides a VLD angle chamfer, but I think the sharp base still tends to snag and cause bullets to tip as the seating die begins to press them into neck. I’ve tried several different seating stems, all of which fit the 69 RMRs fairly well, without any difference in runout. I think they’d seat straighter without the unusual sharp bottom edge.

This bullet shoot’s very well if loaded right. It’s right there with the 69G. Sierra. And the same thing with the RMR 55G.

Ive bought several of these, loading for a 16″ heavy barrel ar 15. Im trying several different powders, the tac posted here is past the max in the ramshot book. But yall are saying it 24.6 im reading. Ill load up 10 with tac. Im going on to 2520 I see some data again on another site thats again above max 25.5.
I have cfe223 Im also going to try.

Today, I ran a ladder load test on the RMR 69g 3GH.
OAL =2.250″
Primers = 450CCI
Power = TAC
Brass = military mixed
AR15 PSA 16″ Upper on a PSA lower
Conditions were sunny. and mid 50’s temps.

I started out with 24.3gr and went to 25.0 gr in .1 increments of 5-shots each.
Each charge was weighed out by an RCBS ChargeMaster. Bullets were seated with a Redding seating die with a verrrry light Lee FCD crimp.
My lowest ES and SD came in at the 24.6gr load with an average 2742 fps thus backing up Jacob Wilcox’s load.
FWIW, at the 24.8gr loads, I was still seeing a low ES and SD, but I was starting to see some pressure indications and the 25gr, loads, they were obvious with my gun.
From today’s testing, the 24.6gr load works well in this bullet/powder combo for this particular rifle.

New to forums. I’m moving on from a .223 Savage bolt LRPV to the AR15 platform which I am trying something new.
I used 22.8 gns of Varget in that bolt gun, 80gn Noslers, coal of 2.455 and it shot very well. Since the 80s are so long I’m going to the 69 grn in my ARs 1:8 20″ barrel, but at a cartridge overall length of 2.26 I start getting a compressed load at 24.4 grains.
So my question to anyone is: what do you think of compressing loads?

Well I just ordered a Danial Defence MK12 with an 18” SS CHF barrel with a 1-7 twist.

I bought this just so I can try out the new 75 grain bullet made by RMR ….. well it’s not the only reason.
I am gonna order a few K of these soon