Any thoughts? Commercially available ammo, excellent balistics in the .284 bullets, uses the .308 case so feed and mag issues should be non existent, decent to above average performance in handloads...beats the heck out of a .308.
-
Having trouble using the site?
Contact support
7-08 / AR10
- Thread starter steelcomp
- Start date
Re: 7-08 / AR10
My thoughts are that I would choose it over 308 AR any day of the week IF and only IF you are going to roll your own ammo, and if its for LR shooting. With a 22-24" barrel is would make for one hell of a 1K autoloader.
My thoughts are that I would choose it over 308 AR any day of the week IF and only IF you are going to roll your own ammo, and if its for LR shooting. With a 22-24" barrel is would make for one hell of a 1K autoloader.
Re: 7-08 / AR10
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: USMCj</div><div class="ubbcode-body">My thoughts are that I would choose it over 308 AR any day of the week IF and only IF you are going to roll your own ammo, and if its for LR shooting. With a 22-24" barrel is would make for one hell of a 1K autoloader. </div></div>Why only reloads? Is the factory ammo that bad or just expensive?
My thinking is I already have a 7mmRM and a 7-08 bolt gun that I'll be reloading for, so I'd have plenty of ammo (lots of .308 brass, too).
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: USMCj</div><div class="ubbcode-body">My thoughts are that I would choose it over 308 AR any day of the week IF and only IF you are going to roll your own ammo, and if its for LR shooting. With a 22-24" barrel is would make for one hell of a 1K autoloader. </div></div>Why only reloads? Is the factory ammo that bad or just expensive?
My thinking is I already have a 7mmRM and a 7-08 bolt gun that I'll be reloading for, so I'd have plenty of ammo (lots of .308 brass, too).
Re: 7-08 / AR10
you would probably get more ballistic bang for your buck with a .260 or 6.5cm...
and .260 can use .308 brass
but since it sounds like your into 7mm stuff already it might be better for you to just go that route. Definetly isn't anything wrong with the 7-08 ARs.
you would probably get more ballistic bang for your buck with a .260 or 6.5cm...
and .260 can use .308 brass
but since it sounds like your into 7mm stuff already it might be better for you to just go that route. Definetly isn't anything wrong with the 7-08 ARs.
Re: 7-08 / AR10
I thought about this heavily with a friend of mine. We both are running 260's now.
The 7-08 doesn't have the case capacity to throw the heavier 7mm's fast enough to make up for the heavy 6.5s going in the 2850+ range.
At 1k the 7-08 lags behind the 260 a little bit in elevation and wind, although wind is almost a wash.
I run 7mm-08 brass through my upper because it was the cheapest available stuff at $20/50 from Grafs. It gets run through the FL sizer die first thing before I do any other case prep so that it's ready to go.
If you have 7's already and you'd be buying new components for 6.5's then the 7mm-08 is going to be a toss up, the performance is a smidge behind the 260, but you have common components to work with.
Bottom line though, neither is a bad choice. I have 6.5's, 7's and 30's so it wasn't a problem for me.
I thought about this heavily with a friend of mine. We both are running 260's now.
The 7-08 doesn't have the case capacity to throw the heavier 7mm's fast enough to make up for the heavy 6.5s going in the 2850+ range.
At 1k the 7-08 lags behind the 260 a little bit in elevation and wind, although wind is almost a wash.
I run 7mm-08 brass through my upper because it was the cheapest available stuff at $20/50 from Grafs. It gets run through the FL sizer die first thing before I do any other case prep so that it's ready to go.
If you have 7's already and you'd be buying new components for 6.5's then the 7mm-08 is going to be a toss up, the performance is a smidge behind the 260, but you have common components to work with.
Bottom line though, neither is a bad choice. I have 6.5's, 7's and 30's so it wasn't a problem for me.
Re: 7-08 / AR10
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">I thought about this heavily with a friend of mine. We both are running 260's now.
The 7-08 doesn't have the case capacity to throw the heavier 7mm's fast enough to make up for the heavy 6.5s going in the 2850+ range.
At 1k the 7-08 lags behind the 260 a little bit in elevation and wind, although wind is almost a wash.
I run 7mm-08 brass through my upper because it was the cheapest available stuff at $20/50 from Grafs. It gets run through the FL sizer die first thing before I do any other case prep so that it's ready to go.
If you have 7's already and you'd be buying new components for 6.5's then the 7mm-08 is going to be a toss up, the performance is a smidge behind the 260, but you have common components to work with.
Bottom line though, neither is a bad choice. I have 6.5's, 7's and 30's so it wasn't a problem for me. </div></div>
Is there enough room in the AR mag to run these as long as one would need?
Thanks for the great input.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">I thought about this heavily with a friend of mine. We both are running 260's now.
The 7-08 doesn't have the case capacity to throw the heavier 7mm's fast enough to make up for the heavy 6.5s going in the 2850+ range.
At 1k the 7-08 lags behind the 260 a little bit in elevation and wind, although wind is almost a wash.
I run 7mm-08 brass through my upper because it was the cheapest available stuff at $20/50 from Grafs. It gets run through the FL sizer die first thing before I do any other case prep so that it's ready to go.
If you have 7's already and you'd be buying new components for 6.5's then the 7mm-08 is going to be a toss up, the performance is a smidge behind the 260, but you have common components to work with.
Bottom line though, neither is a bad choice. I have 6.5's, 7's and 30's so it wasn't a problem for me. </div></div>
Is there enough room in the AR mag to run these as long as one would need?
Thanks for the great input.
Re: 7-08 / AR10
Saw SKRanger kick serious butt and nearly win the SH Cup with a GAP AR in 243win.So its doable outside the 308.
Saw SKRanger kick serious butt and nearly win the SH Cup with a GAP AR in 243win.So its doable outside the 308.
Re: 7-08 / AR10
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body">Any thoughts? Commercially available ammo, excellent balistics in the .284 bullets, uses the .308 case so feed and mag issues should be non existent, decent to above average performance in handloads...beats the heck out of a .308.
</div></div>
Im going with the 7-08 for my current build. I have a Rock barrel on order and am waiting for my IRA receivers. This rifle will be used primarily for hunting and target shooting 600yds and closer; its VERY secondary purpose will be to learn some LR steel shooting techniques with some experienced local guys. I'll probably go with a 20"-22" barrel for maneuverability and it should still have great velocity.
.260 would be nice but it doesnt offer any more for my primary purposes, and the barrel life isnt as good as the 7-08
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body">Any thoughts? Commercially available ammo, excellent balistics in the .284 bullets, uses the .308 case so feed and mag issues should be non existent, decent to above average performance in handloads...beats the heck out of a .308.
</div></div>
Im going with the 7-08 for my current build. I have a Rock barrel on order and am waiting for my IRA receivers. This rifle will be used primarily for hunting and target shooting 600yds and closer; its VERY secondary purpose will be to learn some LR steel shooting techniques with some experienced local guys. I'll probably go with a 20"-22" barrel for maneuverability and it should still have great velocity.
.260 would be nice but it doesnt offer any more for my primary purposes, and the barrel life isnt as good as the 7-08
Re: 7-08 / AR10
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body">
Is there enough room in the AR mag to run these as long as one would need?
Thanks for the great input. </div></div>
I can't speak on the 7mm-08's but there was enough room to get the 123 Amax into the mag and still near the lands.
I haven't shot any of the higher BC 6.5's in it because the only others I had on the shelf besides the 123 Amax was a lingering box of 140 Bergers, I'm not using them for load development in a factory DPMS upper inside of 600y.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body">
Is there enough room in the AR mag to run these as long as one would need?
Thanks for the great input. </div></div>
I can't speak on the 7mm-08's but there was enough room to get the 123 Amax into the mag and still near the lands.
I haven't shot any of the higher BC 6.5's in it because the only others I had on the shelf besides the 123 Amax was a lingering box of 140 Bergers, I'm not using them for load development in a factory DPMS upper inside of 600y.
Re: 7-08 / AR10
.284 162 Amax = 1.420 OAL
.264 140 Amax = 1.375 OAL
How long is a 123?
On this thread, near the end, there's a guy named "Hamilton" who has a 20" 260 AR and he's running 140 Amax.
http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=1715131
"42.5 H4350, 140 A-max, CCI BR2, R-P case.
I get 2600 ft/sec with that load, and it really performs well.
I've gone out to 1050 yards with excellent results, and it should be a good performer out to 1200 yards."
.284 162 Amax = 1.420 OAL
.264 140 Amax = 1.375 OAL
How long is a 123?
On this thread, near the end, there's a guy named "Hamilton" who has a 20" 260 AR and he's running 140 Amax.
http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=1715131
"42.5 H4350, 140 A-max, CCI BR2, R-P case.
I get 2600 ft/sec with that load, and it really performs well.
I've gone out to 1050 yards with excellent results, and it should be a good performer out to 1200 yards."
Re: 7-08 / AR10
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body">Looks like the longest you're going to load anything in an AR10 mag is about 2.86-2.88". The 162 Amax wouldn't work for the 7-08. </div></div>
I run 162 AMax's at 2.840 in my 7-08 and at 2725fps they don't beat a 260 ballistically, but they are a far sight better than a 308. Now when you talk energy on target at distance the 7-08 kicks the 260's butt handily.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body">Looks like the longest you're going to load anything in an AR10 mag is about 2.86-2.88". The 162 Amax wouldn't work for the 7-08. </div></div>
I run 162 AMax's at 2.840 in my 7-08 and at 2725fps they don't beat a 260 ballistically, but they are a far sight better than a 308. Now when you talk energy on target at distance the 7-08 kicks the 260's butt handily.
Re: 7-08 / AR10
shoots and loads just fine, as long as a round has the ogive forward of the case neck its all good.
shoots and loads just fine, as long as a round has the ogive forward of the case neck its all good.
Re: 7-08 / AR10
I think that, like the .260, the 7-08 is a good utilization of the .308's case capacity. The more recent bullet selections make it more interesting.
While I prefer my 7mm's in a .280 chambering, I think that the 139 HDY SST, and 140 Nosler Ballistic Tips could be very good target and/or hunting loads in a 7-08 chambering.
The .280/139SST Custom factory loads I use are very satifying, and I'd not be surprised to find Hornady puts them in a decent factory 7-08 loading.
I would rate the chambering as more efficient than the .308, better as a short-medium range hunter than the .260, and probably far easier on barrels than the .243. For the more extreme distances, my vote goes with the .260.
Greg
I think that, like the .260, the 7-08 is a good utilization of the .308's case capacity. The more recent bullet selections make it more interesting.
While I prefer my 7mm's in a .280 chambering, I think that the 139 HDY SST, and 140 Nosler Ballistic Tips could be very good target and/or hunting loads in a 7-08 chambering.
The .280/139SST Custom factory loads I use are very satifying, and I'd not be surprised to find Hornady puts them in a decent factory 7-08 loading.
I would rate the chambering as more efficient than the .308, better as a short-medium range hunter than the .260, and probably far easier on barrels than the .243. For the more extreme distances, my vote goes with the .260.
Greg
Re: 7-08 / AR10
The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case.
The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case.
Re: 7-08 / AR10
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Greg Langelius *</div><div class="ubbcode-body">I think that, like the .260, the 7-08 is a good utilization of the .308's case capacity. The more recent bullet selections make it more interesting.
While I prefer my 7mm's in a .280 chambering, I think that the 139 HDY SST, and 140 Nosler Ballistic Tips could be very good target and/or hunting loads in a 7-08 chambering.
The .280/139SST Custom factory loads I use are very satifying, and I'd not be surprised to find Hornady puts them in a decent factory 7-08 loading.
I would rate the chambering as more efficient than the .308, better as a short-medium range hunter than the .260, and probably far easier on barrels than the .243. For the more extreme distances, my vote goes with the .260.
Greg </div></div>If I'm doing my math right, with the .284 162 Amax loded at 2.86 oal, that leaves about .560" of the bullet in the case, and the neck is only .300 long. I guess I'm having a hard time gettin my head around that much bullet in the case, behind the neck. Do you hve to reduce the amount of powder you can load becuase of that? (sorry if this is a reloading question..guess I could post it there)
Thanks.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Greg Langelius *</div><div class="ubbcode-body">I think that, like the .260, the 7-08 is a good utilization of the .308's case capacity. The more recent bullet selections make it more interesting.
While I prefer my 7mm's in a .280 chambering, I think that the 139 HDY SST, and 140 Nosler Ballistic Tips could be very good target and/or hunting loads in a 7-08 chambering.
The .280/139SST Custom factory loads I use are very satifying, and I'd not be surprised to find Hornady puts them in a decent factory 7-08 loading.
I would rate the chambering as more efficient than the .308, better as a short-medium range hunter than the .260, and probably far easier on barrels than the .243. For the more extreme distances, my vote goes with the .260.
Greg </div></div>If I'm doing my math right, with the .284 162 Amax loded at 2.86 oal, that leaves about .560" of the bullet in the case, and the neck is only .300 long. I guess I'm having a hard time gettin my head around that much bullet in the case, behind the neck. Do you hve to reduce the amount of powder you can load becuase of that? (sorry if this is a reloading question..guess I could post it there)
Thanks.
Re: 7-08 / AR10
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case. </div></div>That would probably work out about right in the AR10 with an OAL of </= 2.86, depending on how long the boat tail is...assuming it's a BT. If not, it'll be about .08" past the shoulder (based on a case length of 2.0", if that's what's typical on a .308)
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case. </div></div>That would probably work out about right in the AR10 with an OAL of </= 2.86, depending on how long the boat tail is...assuming it's a BT. If not, it'll be about .08" past the shoulder (based on a case length of 2.0", if that's what's typical on a .308)
Re: 7-08 / AR10
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case. </div></div>That would probably work out about right in the AR10 with an OAL of </= 2.86, depending on how long the boat tail is...assuming it's a BT. If not, it'll be about .08" past the shoulder (based on a case length of 2.0", if that's what's typical on a .308) </div></div>
All Amax bullets are BT's, I don't know how long the BT is on the 123, I didn't measure that (though I probably should have).
What AR10 has a 2.86 Internal length? Mine only has 2.805 which is a bit frustration since I can't get anything near the lands at that length.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case. </div></div>That would probably work out about right in the AR10 with an OAL of </= 2.86, depending on how long the boat tail is...assuming it's a BT. If not, it'll be about .08" past the shoulder (based on a case length of 2.0", if that's what's typical on a .308) </div></div>
All Amax bullets are BT's, I don't know how long the BT is on the 123, I didn't measure that (though I probably should have).
What AR10 has a 2.86 Internal length? Mine only has 2.805 which is a bit frustration since I can't get anything near the lands at that length.
Re: 7-08 / AR10
DPMS isn't an AR10... Armalite is an AR10.
The mag on the AR10 is about 2.875 net inside, so I figured 2.86 would be safe for aol.
I guess if someone was to build one of these with this round you'd consider this when chambering.
I don't think the Amax's neeed to be in the lands. <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case. </div></div>That would probably work out about right in the AR10 with an OAL of </= 2.86, depending on how long the boat tail is...assuming it's a BT. If not, it'll be about .08" past the shoulder (based on a case length of 2.0", if that's what's typical on a .308) </div></div>
All Amax bullets are BT's, I don't know how long the BT is on the 123, I didn't measure that (though I probably should have).
What AR10 has a 2.86 Internal length? Mine only has 2.805 which is a bit frustration since I can't get anything near the lands at that length. </div></div>
DPMS isn't an AR10... Armalite is an AR10.
The mag on the AR10 is about 2.875 net inside, so I figured 2.86 would be safe for aol.
I guess if someone was to build one of these with this round you'd consider this when chambering.
I don't think the Amax's neeed to be in the lands. <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case. </div></div>That would probably work out about right in the AR10 with an OAL of </= 2.86, depending on how long the boat tail is...assuming it's a BT. If not, it'll be about .08" past the shoulder (based on a case length of 2.0", if that's what's typical on a .308) </div></div>
All Amax bullets are BT's, I don't know how long the BT is on the 123, I didn't measure that (though I probably should have).
What AR10 has a 2.86 Internal length? Mine only has 2.805 which is a bit frustration since I can't get anything near the lands at that length. </div></div>
Re: 7-08 / AR10
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body">DPMS isn't an AR10... Armalite is an AR10.
The mag on the AR10 is about 2.875 net inside, so I figured 2.86 would be safe for aol.
I guess if someone was to build one of these with this round you'd consider this when chambering.
I don't think the Amax's neeed to be in the lands. <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case. </div></div>That would probably work out about right in the AR10 with an OAL of </= 2.86, depending on how long the boat tail is...assuming it's a BT. If not, it'll be about .08" past the shoulder (based on a case length of 2.0", if that's what's typical on a .308) </div></div>
All Amax bullets are BT's, I don't know how long the BT is on the 123, I didn't measure that (though I probably should have).
What AR10 has a 2.86 Internal length? Mine only has 2.805 which is a bit frustration since I can't get anything near the lands at that length. </div></div> </div></div>
+1
I load 155 Scenars to 2.85" in my AR10 with no issues.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body">DPMS isn't an AR10... Armalite is an AR10.
The mag on the AR10 is about 2.875 net inside, so I figured 2.86 would be safe for aol.
I guess if someone was to build one of these with this round you'd consider this when chambering.
I don't think the Amax's neeed to be in the lands. <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case. </div></div>That would probably work out about right in the AR10 with an OAL of </= 2.86, depending on how long the boat tail is...assuming it's a BT. If not, it'll be about .08" past the shoulder (based on a case length of 2.0", if that's what's typical on a .308) </div></div>
All Amax bullets are BT's, I don't know how long the BT is on the 123, I didn't measure that (though I probably should have).
What AR10 has a 2.86 Internal length? Mine only has 2.805 which is a bit frustration since I can't get anything near the lands at that length. </div></div> </div></div>
+1
I load 155 Scenars to 2.85" in my AR10 with no issues.
Re: 7-08 / AR10
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body">DPMS isn't an AR10... Armalite is an AR10.
The mag on the AR10 is about 2.875 net inside, so I figured 2.86 would be safe for aol.
I guess if someone was to build one of these with this round you'd consider this when chambering.
I don't think the Amax's neeed to be in the lands. <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case. </div></div>That would probably work out about right in the AR10 with an OAL of </= 2.86, depending on how long the boat tail is...assuming it's a BT. If not, it'll be about .08" past the shoulder (based on a case length of 2.0", if that's what's typical on a .308) </div></div>
All Amax bullets are BT's, I don't know how long the BT is on the 123, I didn't measure that (though I probably should have).
What AR10 has a 2.86 Internal length? Mine only has 2.805 which is a bit frustration since I can't get anything near the lands at that length. </div></div> </div></div>
They don't need to be in the lands, however, right now I have them jumping almost 100 thousandths, all the other amax's I shoot like a small jump around 10 thou.
Thanks for the clarification on AR10 vs. LR308
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body">DPMS isn't an AR10... Armalite is an AR10.
The mag on the AR10 is about 2.875 net inside, so I figured 2.86 would be safe for aol.
I guess if someone was to build one of these with this round you'd consider this when chambering.
I don't think the Amax's neeed to be in the lands. <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steelcomp</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bohem</div><div class="ubbcode-body">The 123 Amax is 1.243" long, sorry it took a bit for me to get back to you.
The internal length on my DPMS mags is 2.805" and that's a little short even for the 123's in the 260 case to get to the rifling, as well as where the base of the bearing surface is located in the case. </div></div>That would probably work out about right in the AR10 with an OAL of </= 2.86, depending on how long the boat tail is...assuming it's a BT. If not, it'll be about .08" past the shoulder (based on a case length of 2.0", if that's what's typical on a .308) </div></div>
All Amax bullets are BT's, I don't know how long the BT is on the 123, I didn't measure that (though I probably should have).
What AR10 has a 2.86 Internal length? Mine only has 2.805 which is a bit frustration since I can't get anything near the lands at that length. </div></div> </div></div>
They don't need to be in the lands, however, right now I have them jumping almost 100 thousandths, all the other amax's I shoot like a small jump around 10 thou.
Thanks for the clarification on AR10 vs. LR308
Similar threads
