Now, you wouldn't want to pick an M&P Sport to attend a bunch of multi-thousand round carbine courses or shoot 3 gun with.
for those roles I would definitely want a faster twist, so I could shoot the longer, heavier match bullets like 69 and 77 grain. 1/9 is a great twist rate for shooting cheap surplus ammo,
1/7 became popular because the better manufactures tended to produce 1/7 barrels. 1/9 barrels showed up in the guys cutting corners. 1/7*(and 1/8 if they were more available) is a good twist. Allows the person to buy any ammo barring the lightest weight bullets. Although people have reported 40 grainers shooting just fine.Sad thing is, most folks read that 1:7 twist is mil spec and THE thing to have, when they primarily shoot 55gr fmj ammo.... A 1:8 or 1:9 will actually be better with the vast majority of ammo people actually use.
Or ensuring the bolt closes all the way after a press check on a civilian HD carbine, without getting your thumb grimy on the BCG. If you don't do press checks, and always chamber a round by letting the bolt fly forward, you really don't have much use for one. If you do, they are handy, but not essential.The only practical (???) use of the F/A is too silently chamber a round while hunting by riding the bolt down and then pushing on the F/A to ensure it is fully chambered.
but I've read lots of guys on a few different forums ranting about how they value the lives of themselves and their family too much to trust to a $600 AR.
You're exactly right. The Melonite lined barrels are better than chrome lined. They're more corrosion resistant, and with chrome you're at the mercy of how evenly it's applied.I know they used to come with 5R rifled 1:8 barrels and now they come with standard 6-groove rifled 1:9 barrels, but I thought they've always come with a Melanite (nitride) barrel instead of chrome lining. As far as I know, no M&P-15 or M&P-10 rifles come with chromed-lined barrels, but someone please correct me if I'm wrong.
They have a lifetime warranty. From a company that's been around for 160+ years. And will still be around long after most AR-15 manufacturers are long gone.Actually, that's precisely the scenario you want to pick one up for, preferably shortly before the course: if it's going to break, break it during warranty! How many people are ever going to come close to shooting that # of rounds thru their rifle before the 1st year is up? No, no, I like that idea: trial by fire [no pun intended!]
Standard mil-spec. Replaced mine with an ALG ACT before I ever shot it. It wasn't bad, I just like a nice trigger.What is the trigger like on one a S&W AR Sporter?
Do you guys jump into $80,000 pick-ups or Hummers or Mercedes or big Beemers to go to the range?