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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Dmr/sdmr build and testing report.
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<blockquote data-quote="pondskipper" data-source="post: 1312831" data-attributes="member: 26430"><p>For a barrel I decided to consult with my friends who shoot military rifle matches and see who had the best reputation for making high quality AR barrels and to my surprise the almost all suggested a brand I've never heard of called White Oak Armament, claiming they were by for the biggest bang for your buck as well as exceptionally accurate in comparison to other brands of barrel makers that consistently cost 2-300 dollars more. I decided to go with an 18" DMR contour stainless 1:7 twist barrel with the rifle length gas system. Prior to installing this barrel the gun was normally shooting 1.2" to 1.5" groups at 100 yards, with multiple different types of match ammo. After the barrel swap, which I did myself mind you, the groups shrunk down to an average size of .5-.75 after barrel break in and the new barrel seemed to actually prefer the Hornady 75gr match ammo, so from here on out this was the only ammo fed through the rifle to alleviate variances in different ammunition. When I installed the barrel I also installed an adjustable gas block so I could restrict the amount of gas enough to where it was just enough to cycle the action open and lock the bolt back on the last shot, I do believe this does help accuracy but I can't say how much as I did it with the barrel swap so the effects it had couldn't be measured.</p><p> </p><p>My next task was to address ergonomics as well as reliability which ill get into in the next comment.</p><p> </p><p>At this point the gun was still wearing a standard A2 stock, standard crappy grip, and that lame excuse they call a trigger that has what felt like a 1 ton trigger pull with a 1/2" of creep before it finally went BANG! Knowing exactly what I wanted in all these parts I selected each one according to their feature set and what I already knew they needed to be for me. For the stock I selected the newest generation Magpul Prs stock, so I could fine tune the length of pull and comb height so that I could get a good cheek weld on the scope, it is a fair amount heavier than others but it is a very good quality unit and seeing as how I'm use to caring around bolt guns that weigh in excess of 21 lbs I honestly don't mind it, it also moved the rifles center of gravity further back which makes it more handy in both prone from a bipod as well as shooting offhand. For the grip I decided to go with the ergo tactical grip as I have pretty big hands and I was able to wrap my trigger finger around the trigger with the stock grip all the way to the third joint if I really tried. For the trigger I went with a Timney single stage straight shoe drop in unit because I am better with single stage than two stage and they feel better to me, and the straight shoe moved the trigger out even further and I am now able to use the tip of my trigger finger like I'm supposed to.</p><p> </p><p> (see next comment)gun)gun)gun)</p></blockquote><p></p>
[QUOTE="pondskipper, post: 1312831, member: 26430"] For a barrel I decided to consult with my friends who shoot military rifle matches and see who had the best reputation for making high quality AR barrels and to my surprise the almost all suggested a brand I've never heard of called White Oak Armament, claiming they were by for the biggest bang for your buck as well as exceptionally accurate in comparison to other brands of barrel makers that consistently cost 2-300 dollars more. I decided to go with an 18" DMR contour stainless 1:7 twist barrel with the rifle length gas system. Prior to installing this barrel the gun was normally shooting 1.2" to 1.5" groups at 100 yards, with multiple different types of match ammo. After the barrel swap, which I did myself mind you, the groups shrunk down to an average size of .5-.75 after barrel break in and the new barrel seemed to actually prefer the Hornady 75gr match ammo, so from here on out this was the only ammo fed through the rifle to alleviate variances in different ammunition. When I installed the barrel I also installed an adjustable gas block so I could restrict the amount of gas enough to where it was just enough to cycle the action open and lock the bolt back on the last shot, I do believe this does help accuracy but I can't say how much as I did it with the barrel swap so the effects it had couldn't be measured. My next task was to address ergonomics as well as reliability which ill get into in the next comment. At this point the gun was still wearing a standard A2 stock, standard crappy grip, and that lame excuse they call a trigger that has what felt like a 1 ton trigger pull with a 1/2" of creep before it finally went BANG! Knowing exactly what I wanted in all these parts I selected each one according to their feature set and what I already knew they needed to be for me. For the stock I selected the newest generation Magpul Prs stock, so I could fine tune the length of pull and comb height so that I could get a good cheek weld on the scope, it is a fair amount heavier than others but it is a very good quality unit and seeing as how I'm use to caring around bolt guns that weigh in excess of 21 lbs I honestly don't mind it, it also moved the rifles center of gravity further back which makes it more handy in both prone from a bipod as well as shooting offhand. For the grip I decided to go with the ergo tactical grip as I have pretty big hands and I was able to wrap my trigger finger around the trigger with the stock grip all the way to the third joint if I really tried. For the trigger I went with a Timney single stage straight shoe drop in unit because I am better with single stage than two stage and they feel better to me, and the straight shoe moved the trigger out even further and I am now able to use the tip of my trigger finger like I'm supposed to. (see next comment)gun)gun)gun) [/QUOTE]
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AR15/10 Rifles
Dmr/sdmr build and testing report.
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