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Accuracy International Picture Thread

#23,101
Roadrace33 said:
The AXSA just got a straight tube 6.5. I wish it was 7 or 7.5T but at the time of ordering I got an 8T with plans to only shoot 140s. Going to try the 153s, but I’m not too confident they’ll stabilize properly.

Barrel is THICK. Makes the AXSR HV barrel look tiny 😂
Click to expand...
After having a straight contour for a while, looking at a normal contour looks odd.
1748022560433.jpeg
 
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#23,111
Maelstrom said:
So I went ahead and ordered an L. E. Wilson expander die and mandrel as well as a case gage. They are on the way. I will see what the expander mandrel does and go from there. I wanted the Sinclair Gen 2 expander die and mandrel but they have been out of stock for a while. I have a feeling I will be ordering more mandrel and case gages in the future. I will also be full length sizing all cases from now on before I prime them.
Click to expand...

BurtG said:
Brah

IMG_1619.jpeg


IMG_2208.jpeg


IMG_0174.jpeg
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Is that Geissele?
 
#23,120
E46M3TX said:
Hello gentlemen, first-time poster here. I'm interested in picking up an AXSR in 300 PRC but have a few questions I was hoping one of you might be able to answer. My plan would be to have a 280 Ackley barrel spun up, and I am trying to figure out what bolt I would need to use. Would the .308 bolt work, or will I run into issues given the LA cartridge? Would that concern be assuaged by proper barrel chambering? Would I need to modify specific magazines? Would it instead require a different bolt face on the 300 PRC bolt? Any input is appreciated.
Click to expand...
Just wanted to bump my question(s) here. Would appreciate any input!
 
#23,128
Huskydriver said:
18% more powder for only about 125fps gain over 300prc
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I can understand. I’ve been back and forth so many times. I’ve got 60 rounds of ammo (Berger 215 handloads in Peterson brass left over from previous 300NM barrel I sold) as well as the bolt for my AXSR and 300NM dies so I’ve been leaning towards getting that barrel. Plus there’s several in stock I’d be happy with.

That being said I haven’t pulled the trigger on said barrel yet because deep down I fear 300PRC makes more sense. I can get dies, and only 60 rounds/brass isn’t a ton. I can find a .300 bolt for my ASXR. So…..

Damn. This is tough.
 
#23,130
Everyone I know (only a few) says that the effort to fireform, cost of dies and any other brass prep tool, does not warrant the minimal velocity increase. About the only good thing with 300NMI is the reduced brass growth. They all say it's the worst cartridge to improve.

My buddy's 28" 300NMI with N568, 245 LRHTs was 2970, vs my standard 27" 300NM 250 Atips, with RL50 at 2930.

20250512_183049.jpg
 
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#23,132
Kopfjager1 said:
Everyone I know (only a few) says that the effort to fireform, cost of dies and any other brass prep tool, does not warrant the minimal velocity increase. About the only good thing with 300NMI is the reduced brass growth. They all say it's the worst cartridge to improve.

My buddy's 28" 300NMI with N568, 245 LRHTs was 2970, vs my standard 27" 300NM 250 Atips, with RL50 at 2930.

View attachment 8694119
Click to expand...

Nailed my experience
 
#23,134
Kopfjager1 said:
Everyone I know (only a few) says that the effort to fireform, cost of dies and any other brass prep tool, does not warrant the minimal velocity increase. About the only good thing with 300NMI is the reduced brass growth. They all say it's the worst cartridge to improve.

My buddy's 28" 300NMI with N568, 245 LRHTs was 2970, vs my standard 27" 300NM 250 Atips, with RL50 at 2930.

View attachment 8694119
Click to expand...
Yeah, not much of a improvement. I'm running N570 with the 245s 2950ish out of a normal 300NM on a 26" barrel. Took a lot of different combos to get there, and had to have my freebore extended, but it's happy now. Just counting down the rounds when N570 is going to kill this barrel.
 
#23,135
Kopfjager1 said:
Everyone I know (only a few) says that the effort to fireform, cost of dies and any other brass prep tool, does not warrant the minimal velocity increase. About the only good thing with 300NMI is the reduced brass growth. They all say it's the worst cartridge to improve.

My buddy's 28" 300NMI with N568, 245 LRHTs was 2970, vs my standard 27" 300NM 250 Atips, with RL50 at 2930.

View attachment 8694119
Click to expand...
Curious - with AXMC/AXSR, where is the juice vs the squeeze over the 300NM? Or is there?
 
#23,136
Bacarrat said:
Yeah, not much of a improvement. I'm running N570 with the 245s 2950ish out of a normal 300NM on a 26" barrel. Took a lot of different combos to get there, and had to have my freebore extended, but it's happy now. Just counting down the rounds when N570 is going to kill this barrel.
Click to expand...
Do you track throat erosion?
With RL50, I was only getting 0.003" every 100 rounds. But with the factory Berger 230, which I assume is H1000, I was getting 0.008" which was the first rounds fired then the 300-400, it was 0.006". I'm at 600 rounds now and the last 200 with RL50 I've only had 0.001" totaling 0.023" total erosion since the new barrel.

I know N570 is a barrel burner, but just curious to how it compares to other powders.

richthe1 said:
Curious - with AXMC/AXSR, where is the juice vs the squeeze over the 300NM? Or is there?
Click to expand...
I don't think there is any benefit aside from reduced brass growth. With my 300 NM (Lapua brass) I have to trim about 0.004" after every firing (annealed each firing). I don't remember how much I trim above min SAAMI length (+0.002 to 0.005), but it's just to be consistent between each firing.
 
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#23,137
Kopfjager1 said:
I don't think there is any benefit aside from reduced brass growth. With my 300 NM (Lapua brass) I have to trim about 0.004" after every firing (annealed each firing). I don't remember how much I trim above min SAAMI length (+0.002 to 0.005), but it's just to be consistent between each firing.
Click to expand...
Do you think any other cartridge beyond 300NM would be worth running in the AXMC/AXSR? 33/37XC?
 
#23,138
I mean, sure, there are benefits to those larger cartridges. Really depends on your use case. ELR Light or Tac class (if you can get the AXSR under 19lbs), I think the 30 cal with high BC 230s at 3000+ fps is superior to any of the 338 cartridges, especially if you can get into the 3200 fps realm.

For the AXSR, you can have a 1.350x5" straight taper to 1.1 at 30", you can still be underweight for the ELR light. I also run the TBAC 338 Ultra SR 100% of the time and run Ckyepods DP, which is a significant portion of weight right there.

Another reason I like the 300 NM is you can mag feed the heavies, whereas 338 LM you'll neuter the cartridge if you try to mag feed the 300gr bullets, or run into donut issues down the line. And 33/37XC is going to be strictly single-feed.

If you're shooting Heavy class, I think the AXSR will be handicapped compared to the other purpose-built rifles.

For the AXSR, I'd stick with 300NM or 300 PRC, but run long barrels for the PRC to make up for the velocity. This is just theoretical, but the hit percentages increase drastically at extended distances (2000+ yards) with 230s at 3100+ fps compared to 2900fps or the 338 cal 300s at 2900 fps.
 
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#23,139
Kopfjager1 said:
I mean, sure, there are benefits to those larger cartridges. Really depends on your use case. ELR Light or Tac class (if you can get the AXSR under 19lbs), I think the 30 cal with high BC 230s at 3000+ fps is superior to any of the 338 cartridges, especially if you can get into the 3200 fps realm.

For the AXSR, you can have a 1.350x5" straight taper to 1.1 at 30", you can still be underweight for the ELR light. I also run the TBAC 338 Ultra SR 100% of the time and run Ckyepods DP, which is a significant portion of weight right there.

Another reason I like the 300 NM is you can mag feed the heavies, whereas 338 LM you'll neuter the cartridge if you try to mag feed the 300gr bullets, or run into donut issues down the line. And 33/37XC is going to be strictly single-feed.

If you're shooting Heavy class, I think the AXSR will be handicapped compared to the other purpose-built rifles.

For the AXSR, I'd stick with 300NM or 300 PRC, but run long barrels for the PRC to make up for the velocity. This is just theoretical, but the hit percentages increase drastically at extended distances (2000+ yards) with 230s at 3100+ fps compared to 2900fps or the 338 cal 300s at 2900 fps.
Click to expand...
This ^
 
#23,140
Kopfjager1 said:
Do you track throat erosion?
With RL50, I was only getting 0.003" every 100 rounds. But with the factory Berger 230, which I assume is H1000, I was getting 0.008" which was the first rounds fired then the 300-400, it was 0.006". I'm at 600 rounds now and the last 200 with RL50 I've only had 0.001" totaling 0.023" total erosion since the new barrel.

I know N570 is a barrel burner, but just curious to how it compares to other powders.


I don't think there is any benefit aside from reduced brass growth. With my 300 NM (Lapua brass) I have to trim about 0.004" after every firing (annealed each firing). I don't remember how much I trim above min SAAMI length (+0.002 to 0.005), but it's just to be consistent between each firing.
Click to expand...
I don't but when I clean, I run a bore scope down the barrel to check how clean it is. I don't chase the lands. But 700+ rounds in, you can see quiet a bit of cracking. I would be happy if it last 1200 rounds. I'm sure if went with a different powder I could extend the barrel life, what a couple hundred rounds? I realize performance comes at a cost. And I am not going to shoot a NM at PRC speeds..... There is a reason why you go Norma.
 
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#23,149
I have a pre-14 AX 338 lapua, it’s mainly collected dust as I don’t have any components for 338.

I bought a new magnum bolt so I can run 300 win mag (which I do have components for). But, what barrel tenon do I use? I am under the assumption I can use AXMC.

Also If I can, and I choose to get another bolt for 308, can I use the kit to feed the short action cartridges?
 
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