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Discussion Starter #881
Well so far so good. I ended up with my sized brass measuring 1.305" to the shoulder with a Hornady 350 adapter and fired brass measured 1.312" so I'll close that up a couple thousandths for next sizing, ran these first few loads at 25 grains of SWBO with 150 Hornady SPFB's and no serious pressure signs, Win WSR primers were still rounded on the edges and no swypes or ejector imprints. Couldn't ask for a better trial run, I'll get some speeds and accuracy data after break in. Thanks to everyone for doing all the heavy lifting on this cat, it has made my first wildcat a very straightforward project.
Looks good, I think you'll like it when you start hitting game. For most hunters in the US after whitetail and hogs this is the real hammer. The 110 TSX and 125 Nosler are great bullets but I really wish those 130gr MK319 bullets were available.
 

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I'm sitting on a few hundred 160 gr ftx bullets made for the 30-30, they seem to shoot well but wondering if anyone has tested those out on game? I'm guessing speeds would be in the 2300-2400 area? Should be an ar version of a 30-30?
 

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I'm sitting on a few hundred 160 gr ftx bullets made for the 30-30, they seem to shoot well but wondering if anyone has tested those out on game? I'm guessing speeds would be in the 2300-2400 area? Should be an ar version of a 30-30?
my guess they'd be pretty slow--any particular reason you would try that over the 135 ftx?
 

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my guess they'd be pretty slow--any particular reason you would try that over the 135 ftx?
Actually I just came in from shooting some. 2360 fps, so right at 30-30 Leverevolution factory speeds iirc. That should kill like a freight train IMO.

The reason is I have about 300 of them I bought as blems, and none of the 135s.

I have enough 30 cal bullets to last a long time, so looking to shoot them as opposed to buying something else. This will be used out to a max of 200 yards by either my wife, daughter, sister-in-law, or neice hopefully lol. I'll post up a pic and you'll know why I say that lol. I want something fairly soft shooting, but providing some "margin for error" on deer.

Here's what I have tried so far. Everything shoots well enough for the purpose, and some cloverleaf at 100.

125 SPH, A2200 gets them up to 2650ish, with what appeared to be the most accurate load. About out of room for powder.
150 Hdy sp, no speeds as I just shot a few light loads while fireforming. I'd imagine 2450, maybe 2500 would be max. These almost all went into one hole. But I really feel this bullet wouldn't expand well at these speeds.
160 ftx, compressed load at 2360, these need to be seated pretty deep. But they should be perfect for these speeds and flat enough for 200 yards easily. Actually there probably isn't much difference in any of these loads trajectory wise. These are also scary accurate.

110 vmax also shot very well while fireforming, not planning on shooting one at a deer however.

I know 125 accubond is the darling of this size case, and I do have some for my 30 RAR. It launches those about 2900 fps and they are not something I have a lot of.

Now I have to confess, my build is with a BHW barrel, with a long chamber, so making brass is a little tougher. But it does really shoot well it seems and runs very well. I plan on picking up some cfe blackout powder, or swbo if I can find it. Maybe some RE7 would be the ticket for the 160's.
 

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I bought some 135 FTX blems and got to try them yesterday. With what was left of my A2200 I'm getting 2600 fps and very good accuracy. Shape wise it's like this bullet was made for this round, it just works perfectly. I know it was made for the 300 BO, so hoping 2600 isn't too fast and turn it into a varmint bullet. I read on another forum where Bill Wilson is getting great results on hogs in his Ham'r at 2440 fps. Anyone have any experience with this bullet?
 

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load for 147gr FMJBT

I finally got my "mower axel" assembled into a functioning upper. Looks sweet, and I'm excited to give it a test. Phase II of assembly is to create some basic ammo for testing.

My brass is S&B new primed brass from CBB. I deprimed, sized and trimmed. Now I'm looking for a nice gentle load to fire form the brass and verify my assembly works.

Bullet of choice is some cheap 147gr FMJBT, from Wiedners, M80 pulls. I've shot them before in my 300BO rifle, and had 2moa+ results. The goal for now isn't accuracy, just function and some noise and the smell of burnt powder, with complete safety. Trying to stay away from the ER these days. :)

I also have 125 grain SST and 125 grain MKZ, and a bunch of 110 grain Vmax. I can use those if recommended at first, but I'd rather stick with a plinking bullet for now if possible.

I've searched for loads and haven't found anything. I'm guessing roughly 28 grains of 1680 with a OAL of 2.330. My ASC mags appear to support that length, but maybe I need to be shorter than that to take up some air space and make my %-fill higher.

Any help from all of you more-knowledgable guys would be appreciated. Thanks in advance.
 

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Discussion Starter #889
I finally got my "mower axel" assembled into a functioning upper. Looks sweet, and I'm excited to give it a test. Phase II of assembly is to create some basic ammo for testing.

My brass is S&B new primed brass from CBB. I deprimed, sized and trimmed. Now I'm looking for a nice gentle load to fire form the brass and verify my assembly works.

Bullet of choice is some cheap 147gr FMJBT, from Wiedners, M80 pulls. I've shot them before in my 300BO rifle, and had 2moa+ results. The goal for now isn't accuracy, just function and some noise and the smell of burnt powder, with complete safety. Trying to stay away from the ER these days. :)

I also have 125 grain SST and 125 grain MKZ, and a bunch of 110 grain Vmax. I can use those if recommended at first, but I'd rather stick with a plinking bullet for now if possible.

I've searched for loads and haven't found anything. I'm guessing roughly 28 grains of 1680 with a OAL of 2.330. My ASC mags appear to support that length, but maybe I need to be shorter than that to take up some air space and make my %-fill higher.

Any help from all of you more-knowledgable guys would be appreciated. Thanks in advance.
30.51680125gr TNT2655max usable
311680125gr TNT2685starting to crater
312200125gr TNT2535
322200125gr TNT2577
332200125gr TNT2660No swipes or cratering
30.51680125 Sierra2.242600estgood accurate load
311680125 Sierra2650max in fereral brass
30.51680125 Nosler2.32682max in federal brass
322200130mk3192.32500
30.51680130mk3192580
30.71680130mk3192.2952620
3116802635
150 Nosler
27168023332.3"
2816802399
281680149gr fmj24392.3"
28re7149gr fmj2386
29RE7149gr fmj2470
281200r149gr fmj2281
291200r149gr fmj2394
301200r149gr fmj2440
292200149gr fmj2310
302200149gr fmj2426
312200149gr fmj2511
factoryfederal149fmj261316" 308 factory
302200155AMAX2414
 

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Thanks so much H!

If you have any other load data, I'd be grateful. Seems like maybe you have a spreadsheet or word file saved? If you're willing, I'd love a PM or email with your files.

Thanks again for your help. The info you shared above will get me a long long ways.
 

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0C00DFEF-347D-443F-8E19-595871410969.jpeg Didn’t know if I had posted this here yet. 30 Herrett Ar/Tac 30.
been too busy, gotta start loading for this thing.
Gonna be shooting 110s Tacs and the 115 Lehigh.
which powder should I go with? 1680?
 

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Seekins HG, FD defense lower, Gisselle Trigger, Magpul UBR, SAS Reaper MX 30 cal Titanium tomb can.
 

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Just got my hornady 30 Herrett dies, hopefully I get the barrel soon. Has anyone done temp sensitively testing with 1680 or shooter world black.


Sent from my iPhone using Tapatalk
 

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Good news and bad news.
Good first: I at long last loaded some ammo and fired first shots through my TAC-30 mower axel. Gun functioned, and I set the adjustable block to hold open on last round.

Bad: Studying the brass, all fired loads (just six of them) resulted with split cases around the shoulder. It varied, but there were between 4 and 8 splits on each case, all around the shoulder getting up into the neck. Also what I thought was a mild load resulted with flat primers with slight elevated craters. Looking at them the crater ridges are just barely visible, but running a finger nail over them, its definitely a raised edge at the firing pin impact area. I didn't have a chronograph for this test, but can fire more for a velocity results.

I'm using new S&B brass, for 6.8SPC. I deprimed, enlarged to 30 cal with shoulder bumped back near 1.370. Then I trimmed to 1.578. Then I slowly turned the sizing die down bit by bit until the brass would chamber with bolt closed. Then I trimmed again to 1.578. Top of shoulder is roughly at 1.335, hard to measure exactly. Then I made about 20 brass pieces using the die settings and trim settings. I didn't anneal before or after resizing. FWIW, I used Hornady 30 Herrett dies.

My test load was 26.5 grains SW Blackout, 147grain FMJBT, 2.290 COAL. Though I don't have quick load, I understood from others that SW BO operates at lower pressures than 1680, which H said had a max load of roughly 28grains. So I thought my load was supposed to be pretty mild.

Any advice from the group? Do I have forming and first-fire issues, or did I unintentionally get a hot-load that doesn't play well with the first-fire? Other issues?
 

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Wild guess--for whatever reason your headspace and/or shoulder bump was off--your shoulder did not conform to the chamber--flowed out to the point it started to fail. Don't take it the wrong way--but those are really neat rings in the case flowing out from the shoulder--never seen that before. Easy to see some necks are longer than others.
 
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