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Posted: 9/4/2005 6:22:35 PM EDT
| Any one have any experience with Colts sporter model. Is it a 5/8" barrel. I'm wondering if it has the same barrel whip as Rugers mini-14 causing accuracy problems. |
Don't even compare a Colt SP1 with a Mini-14.  I used to have a SP1 and it was my first AR back in '71. It's pretty accurate grouping about 1 1/2 to 2 inches at 100 yds. Every once in a while I could make a 1 inch three shot group in the standing shooting position. I wish I could have kept it but I traded it in with a Colt Sporter 2 in the mid 80s. |
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My dept has several original SP1 Colts and the accuracy is superb. I wouldn't mind finding an SP1 upper and converting it over to a free-float tube and see if it gets better. Some guys really like their Mini14s. I think their barrels are shit personally. If you can get a good deal on a used mini get one of the aftermarket barrels for them to find true happiness. SP1 barrels GOOOOOOD! |
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An SP1 upper is almost EXACTLY the same as the first M16 rifles. The POI will vary as the barrel heats up in extended firing , or if you put pressure on the barrel. ( this is true with almost ANY rifle) That said however , they do not "whip" when fired. Due to the method of attachment , Barrel Harmonics with an AR15 are minimal. ( which is why adding a freefloat handguard usually makes them super accurate ) Use of 55 gr. ammo is advisable due to the 1/12 rifling twist of course. |
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