I found this interesting post today about the temperature stability of AR Comp. http://www.snipershide.com/forum/ubb...38#Post2812538
Range Report: AR-Comp & Amax 123
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Originally posted by rasp65 View PostI found this interesting post today about the temperature stability of AR Comp. http://www.snipershide.com/forum/ubb...38#Post2812538
I keep waiting to hear a file has been created or it for QuickLoad, but nothing so far. I called Alliant for help building that file myself and got someone who though they give advice to reloaders, had never heard of QuickLoad. So, that's a dead end.
The Alliant web site has recipes for a few common calibers and bullets. IE Not the Grendel. The one for the 168gr .308 shot .29 MOA 5-shot group at 100 yards. Blew me away!
Hoot
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AR-Comp is all I use anymore in the 6.5 G. It doesn't produce the highest velocities, but accuracy and temp insensitivity more than offset the slightly slower speeds. Lot to lot consistency seems to be good too.
I use the exact same recipe for both the 123gr Scenar and 123gr A-Max, and get good results in both Grendel and LBC chambers, and also in both cut and button rifled barrels.Drifter
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Been jacking around with 8208 and the Amax 123 for my backup deer caliber since I got good performance from it earlier this spring. Still getting great accuracy, but had a problem with the 2.29 COL not fitting into my magazine without dragging. Kinda late to try and find a different (longer COL) magazine locally before packing tomorrow afternoon. So I seated them to 2.26 and they move in the magazine fine now. Of course there's always a catch... Now I'm getting short stroking and that's a non starter in terms of hunting, since I may need a quick follow up shot. That's the price for loading all my experiments one round at a time into the top of the mag DUH!
So, I went to my next most accurate load, which was 28.5gr AR-Comp yielding ~2600 fps. Not as high as I can get with 8208, but I still think that powder is more matched for 100 grainers anyway. I need to foul the barrel anyway, so I plan a quick trip to the range tomorrow morning to dial in the ARC load and check functionality. I have mag bodies that accommodate longer COLs, but the rib pattern is for the 5.56 cartridge. That's the price of spending 3 days getting my Dad's rig running and some ammo worked up for him. (Browning BAR .30-06 & 150 TTSX over H4895). I thought I had him all set until we wasted all the loads trying to get his ancient Redfield Widefield 3-9 dialed in, when I declared it was flaky and threw a different scope I had on (new Redfield Revolution) much to his grousing. Same problem getting it dialed in when I noticed his cheapo Tasco rings and aluminum bases were loose on the receiver. By the time I got that mess cleaned up, tumbled and processed the brass, made more loads and dialed in so that he is setting pretty, I blew the time I needed to get ME set up. Now it's panic time since I don't have my gear staged, not even rounded up yet and it's going to take another trip to the range to dial in [b]MY[b] ARC loads and hope they cycle ok from this magazine I have. Thank goodness the 6.5 is my backup rig and my 450 Bushmaster is already dialed in for my Barnes 200gr XPBs. I really want to bloody both of them this year. Gonna be a crazy day tomorrow...
What a comedy of errors this has turned out to be. Add to that, I took this whole week as vacation before season comes in this Saturday to relax, spend some time with my Dad, who I see once a year and get my gear staged. Dad is 80 and who knows how long we have together, so I let him invite himself out here each deer season to wait on him hand and foot, at the expense of my mental health. Sorry, had to vent before turning in.
HootLast edited by Guest; 11-03-2011, 10:16 AM.
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Hoot I found this recently on the interwebs. It is a magazine mod that allows you to use longer oals. http://www272.pair.com/stevewag/armags/armags.html
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Originally posted by rasp65 View PostHoot I found this recently on the interwebs. It is a magazine mod that allows you to use longer oals. http://www272.pair.com/stevewag/armags/armags.html
Hoot
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