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I have received my chassis from Rob last Friday. So far I am really pleased with it. Just took it to the range and shoot a sub 1/2 inch group with my 223. The chassis is really well made and very...

Hi overflow50, mine is 0.2962, so same as yours. GAP later released 0.298 neck reamer, which you can use normal cases without neck turning. I neck case down from 300 saum so neck turning is a must....

Thanks Mikee, it is all good. I have no issue with norma brass so will stick to it. I was just curious why the over-pressured brass could cause accuracy problem. have a great weekend!

thanks Mikee, Tentman. yes the 6.5 saum does get donut quite easy. I used to use inside reamer along with case trimmer to remove the donut. but now days I just use a 6mm drill bit and rotate case...

Hi Mikee,
I use body die to resize the case & bump the shoulder but not neck, as I don't like the full length resizing's resizing button which tend to pull the neck out of concentricity. I use the...

thanks 6x47, yes the brass can still hold the primer, albeit bit loose. I don't use neck die, collet die what I use for neck resizing. Body die is used for body resizing. I have tried to increase...

Recently I bought few bertram brasses (6.5 saum) and noticed they are very soft, to the point I have to decrease my load by 2-3 grains, comparing to the load I normally use with norma brass.
I...

finally got my howa mini 223 to shoot. The new rifle (match barrel) arrived shooting 3-4 inches whatever the projectiles I have tried. I then chopped the 1/2-20 UNF thread and replaced it with 18x1...

I can spare you a box of federal F210, if you happen to be in Wellington, or someone can pick it up for you. not sure about posting this

Good explanation about the bat action, Stocky. I believe the counter force for the bolt thrust is called "friction effect", where the case direct the force to the chamber wall, as much as half of the...

Hi 300CALMAN, Sorry I don't own the design so I am not sure if it is appropriate to give his stuff away. It was by a guy I met at the rifle range. Maybe he is on this forum?

Well, that was the time when AR was still around, was the last time I shot deer with 223

Wow! thanks guys. For worrying about firearm safety. I appreciate that.
But, before you go on think I am going to blow up my gun with this carriage, have you actually had a look of the Mini bolt?...

Don't think GT can be compared to 308 or creedmoor, 43gr VS 54gr water capacity. I agree the Bumblebee could be strong but doubt will be as strong as howa mini. steel is roughly 2.5 times stronger...

I am not sure the bolt thrust has much to do here. F(bolt)=P(max)xA(internal or external), so long the pressure is same and the case head is same then the bolt thrust is the same. So really it is the...

Very good point there Pommy. the sammi pressure for 6mmGT is 62000PSI. However, I think howa mini can handle it fine. The custom rifle the guy built used BAT bumblebee action, which is aluminium. I...

Hi McNotty, I had a T3X, assuming they are similar. below is my measurement:
150gr eld-x OAL=2.979
Also, 154 SST=2.949; 168 SST = 3.006; 162 ELDM=3.003; 139SST=2.959. I have changed the gun to 284...

Good point Beetroot, probably the 6mmGT is better suited. I went to the GA precision site(who invented the cartridge) and the reamer they are selling has the freebore of 0.12", which is quite long....

not sure about that claim. I have shot a fallow with 69smk at the range of 50M, hit in the lung, watch it bolted. Then spent quite lot time to track it down. It is dead about 50m away, but in the...

which page you want me to look at, gimp? there are 53 of them. lol. If you are advocating not to use 223 for deer, I agree with you. But a 6mm/22GT has case water capacity of 43 gr, comparing to 30gr...

Here I'm holding a .308 case (same bolt diameter as GT), there should be plenty meat on mini bolt to accommodate the case218433

I've been following this guy's rifle built, a 22GT: https://ultimatereloader.com/2022/02/10/22gt-ultra-light-weight-build-start-to-finish/
All customized as those American do, while in NZ most of...

I'm open minded, whatever works. I have some 69 SMK (and ordered 73gr eld-m), but keen to know if it works with something lighter like 55gr.

I did one for a friend, just buy some panasonic batteries and use the existing cables. Best if you have a spot welder (get one from aliexpress). I solder them on but feel not as strong as original so...

Hi, anyone owns one of those rifle know a good load? It is the heavy barrel with 1:8 twist 223.

Many thanks!