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The 1:7 would be the twist rate to go. It will stabilize the heavier rounds better. The heavier rounds have better penetration. One of the guys at work was in the Army for a long period of time and he is an avid shooter. He didn't notice much if any difference using the lighter 55 grain rounds or the heavier 62 grain rounds through the 1:7 twist rate barrel. With the faster twist you can use the 77 grain open tipped rounds.

Mine are all .55s. I imagine 1/7 is popular because it's "spec". Larue is shipping a 1/8 I think on the PredatAR.

remington79 wrote:The 1:7 would be the twist rate to go. It will stabilize the heavier rounds better. The heavier rounds have better penetration. One of the guys at work was in the Army for a long period of time and he is an avid shooter. He didn't notice much if any difference using the lighter 55 grain rounds or the heavier 62 grain rounds through the 1:7 twist rate barrel. With the faster twist you can use the 77 grain open tipped rounds.

Interesting. So, the higher twist rate is needed to stabilize the heavier rounds, but will still fire the lighter ones good or just as good as the lower twist rates. Okay, good to know. I wasn't sure, but had thought the higher twist rate wouldn't be good for the lighter rounds.

I don't think you will be able to use anything lighter than 55 grain such as some varmit loads. I had asked my co-worker about the twist rate and he said he didn't notice any difference. I can't remember the exact ranges he was shooting but I know there was a 300 in there.

GigAg, have you decided yet? I'm leaning toward the BCM EAG and went up to the Cheaper Than Dirt store this afternoon to fondle, I mean handle it, but they don't have it in the store. It's in the/a warehouse. That M4 Mod2 looks nice, but everyone else thinks so too and no one has them and they won't back order them. Their prices seemed pretty decent on a lot of the things I saw there today. I'm going to browse through more of the stuff they have and I might decide sometime this week.

The EAG is ok but I would get the RUC or the Larue first. Not super as to why, but that's my initial impression.

gigag04 wrote:The EAG is ok but I would get the RUC or the Larue first. Not super as to why, but that's my initial impression.

I went and looked at those this morning. I'm at work now and just about anything gun related is blocked by our firewall. I'll check more tonight. They also looked good. Key differences I can remember is one them had two stage trigger, which I thought was not much desired in a patrol/combat rifle and the other more noticable thing was the front sight. The BCM has that A2 style elevated front sight and RUC and Larue do not. Also, one those had that 1:8 twist, but that might not be a deciding factor. I'll look around some more and it might just come down to availability. Now that you guys have opened my eyes a little more the differences between some of these guns might only be a matter of personal preference.

BTW, what is that big fixed front sight for anyway? Does it serve any other purpose? I think I like the cleaner look of the guns without it. Plus, isn't it in the way if other optics are added onto that top rail?

C-dub wrote:BTW, what is that big fixed front sight for anyway? Does it serve any other purpose? I think I like the cleaner look of the guns without it. Plus, isn't it in the way if other optics are added onto that top rail?

Depends on the optics. I had a fixed front sight on my LMT piston, and I setup an Aimpoint Comp ML3 on a higher mount, so the iron sights co-witness in the bottom 1/3rd of the optic. There is a train of thought that says having the fixed sights cowitness with the optic is preferable so that in the event of optic failure, you do not have to remove the optic and flip up the sights. I could go either way on it TBH.

gigag04 wrote:The EAG is ok but I would get the RUC or the Larue first. Not super as to why, but that's my initial impression.

Have you decided on anything yet? That BCM is looking pretty hard to get a hold of, while the RUC website says only a 2-4 week wait for shipment. I'm kinda hooked on the RUC, but now have to decide on the 14.5" (16" OAL) or 16" that is probably 17.5" OAL, but they don't say. And standard or lightweight barrel.

Anyone got any opinions on the different lengths and barrel weights for this rifle? I doubt there would be any significant difference, but IDK. Why else would they even offer them like that?

At this point, I think I'll have to see a pretty good deal on a Colt, while I'm up in Kansas, to change my mind.

Up in Kansas and went by my favorite gun shop up here this morning.

They have a Colt LE6920MP-R they just got in last week. It is still in the box and they didn't have a price on it yet. The owner finally came in and caled me back. He's asking $1350 for it. This seems reasonable and what everyone else is asking for them. I'm really thinking about going through with this today unless someone can tell me that the RUC 14.5 or 16 is that much better for $150 more. I'm thinking this is a decent price and, who knows, I might even get him a little lower since I have cash or I might be able to get him to throw in a couple more mags or a light. I don't want to disrespect him by asking for too much if this is a reasonable price for a good rifle.

What do ya'll think?

I'm thinking RUC 14.5. But it would be a hard call.

C-dub wrote:Up in Kansas and went by my favorite gun shop up here this morning.

They have a Colt LE6920MP-R they just got in last week. It is still in the box and they didn't have a price on it yet. The owner finally came in and caled me back. He's asking $1350 for it. This seems reasonable and what everyone else is asking for them. I'm really thinking about going through with this today unless someone can tell me that the RUC 14.5 or 16 is that much better for $150 more. I'm thinking this is a decent price and, who knows, I might even get him a little lower since I have cash or I might be able to get him to throw in a couple more mags or a light. I don't want to disrespect him by asking for too much if this is a reasonable price for a good rifle.

What do ya'll think?

That sounds like a good deal to me. I was looking at one of those down here and the shop was asking $2,100. At first I thought they were joking, but apparently not. I would bite for $1350, but then again I am not a great haggler. My negotiations are usually limiting to "ok" or "no thanks".

Ended up getting it for $1250 and his last pmag he had on the wall. His ammo was high at .50/round and I was going to pass and check Walmart, but he threw in two 20 boxes of some 55gr Federal stuff.

I shot 20 rounds today. First three were high and left. Adjusted the sights and put the next 3 in the bull. COOL! Moved back to around 30 yards from about 15 for the rest. Nice rifle. I'm happy.

C-dub wrote:Ended up getting it for $1250 and his last pmag he had on the wall. His ammo was high at .50/round and I was going to pass and check Walmart, but he threw in two 20 boxes of some 55gr Federal stuff.

I shot 20 rounds today. First three were high and left. Adjusted the sights and put the next 3 in the bull. COOL! Moved back to around 30 yards from about 15 for the rest. Nice rifle. I'm happy.

Nice buy indeed.