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Post by lawrencecountyhunter on Aug 10, 2016 10:16:07 GMT -5
I've been accumulating pieces here and there for some time now for a 300 Black-Out rifle. Intended use is occasional hunting. I don't plan on suppressing it. Stripped Anderson receiver.  Here it is laid out in pieces.  Upgraded trigger. I do not like the mil-spec triggers.  Assembled lower, along with barreled upper.. I had this Bushnell Banner lying around, so mounted it up.  Finished product. I hope to get it out and zero the scope this weekend, and maybe see what kind of accuracy I can get.  |
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Post by dbd870 on Aug 10, 2016 10:18:32 GMT -5
Not familiar with that trigger but 3.5# single stage sounds good to me.
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Post by lawrencecountyhunter on Aug 10, 2016 10:23:26 GMT -5
I like it. Not quite as smooth as the Timney in my .450, but a whole lot less expensive. I went ahead and ordered another for my .223.
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Post by INhuntin on Sept 2, 2016 22:10:59 GMT -5
Nice!
Post pictures of your paper when you get it to the range.
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Post by nfalls116 on Sept 2, 2016 22:19:08 GMT -5
Nice! Post pictures of your paper when you get it to the range. yeah. Not just the pretty one at the end either |
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Post by lawrencecountyhunter on Sept 3, 2016 6:32:35 GMT -5
I got it zeroed a little while back with the Remington UMC ammunition, and was getting 1.5" groups at 100 yards. I'm hoping to try some different loads to try and tighten them up a bit.
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Post by Jamie Brooks 1John5:13 on Sept 5, 2016 9:24:49 GMT -5
Good job LCH
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Post by omegahunter on Sept 15, 2016 9:48:06 GMT -5
Is this normal for an AR? I am very new to them. This is a friend's AR in .300 BLK that I loaded up a batch of ammo and was shooting for him. Shots 1 and 2 are high/left and pretty much same hole. #3 is same ragged hole opened to a cloverleaf. #4 just touches the cloverleaf high. #5 is still in a 1" group at 100 yards. #6-10 proceed to drop and scatter.  Practically every rifle I have ever had would "walk" shots as the barrel heated up, but I don't recall any that made such a drastic jump like from #5 to the rest of the "group". Matter of fact, most all of them have changed POI pretty consistently in a uniform direction as the barrel heated like impacts climbing higher and to the right or such and probably due to the action not being bedded in the stock. I normally do my final sighting in with no more than two shots and let barrels cool out before continuing. I was curious on what a 10 shot group would look like. I used my two-shot method to set his final zero at 2" high at 100 yards. Mine is also 2" high at 100 yards, but I have never tried to shoot a 10 shot group with mine. But when I double checked my zero, the shot was perfectly 2" high, dead center left/right. Maybe I will shoot a mag through mine to see if it acts the same way. |
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Post by Jamie Brooks 1John5:13 on Sept 15, 2016 21:31:09 GMT -5
Is this normal for an AR? I am very new to them. This is a friend's AR in .300 BLK that I loaded up a batch of ammo and was shooting for him. Shots 1 and 2 are high/left and pretty much same hole. #3 is same ragged hole opened to a cloverleaf. #4 just touches the cloverleaf high. #5 is still in a 1" group at 100 yards. #6-10 proceed to drop and scatter.  Practically every rifle I have ever had would "walk" shots as the barrel heated up, but I don't recall any that made such a drastic jump like from #5 to the rest of the "group". Matter of fact, most all of them have changed POI pretty consistently in a uniform direction as the barrel heated like impacts climbing higher and to the right or such and probably due to the action not being bedded in the stock. I normally do my final sighting in with no more than two shots and let barrels cool out before continuing. I was curious on what a 10 shot group would look like. I used my two-shot method to set his final zero at 2" high at 100 yards. Mine is also 2" high at 100 yards, but I have never tried to shoot a 10 shot group with mine. But when I double checked my zero, the shot was perfectly 2" high, dead center left/right. Maybe I will shoot a mag through mine to see if it acts the same way. I can't see the photo, but I have put 15 shots in a star at 100yds with my 300 blackout. I had sighted it in at 50yds, and it shot flat to the 100. I was really happy. Now if a target is moving, it needs to be the size of a bus if I've going to hit it very often. |
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Post by omegahunter on Sept 15, 2016 21:42:07 GMT -5
Photo showed on the computer, but not now on my phone. I'll check the link tomorrow.
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Post by MuzzleLoader on Sept 16, 2016 5:24:54 GMT -5
Photo was there yesterday.
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Post by omegahunter on Sept 16, 2016 6:05:05 GMT -5
Re-pasted the link. Seems to be ok again.
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Post by omegahunter on Sept 16, 2016 12:43:46 GMT -5
I like it. Not quite as smooth as the Timney in my .450, but a whole lot less expensive. I went ahead and ordered another for my .223. Those triggers are on sale right now at Delta Team Tactical. |
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Post by Jamie Brooks 1John5:13 on Sept 16, 2016 13:07:21 GMT -5
Re-pasted the link. Seems to be ok again. My BiL says that powder is very important. He will not mix different lots of powder. He made me 300 rounds of 300 blackout that shoot tighter than my Hornady factory made rounds. He made 5 different powder recipes to determine what worked best with my gun and the powder we bought. We picked the tightest pattern and that's what he made the 300 with. Anytime he switches powder lots, the goes through the same process, so he buys the biggest batch he can get. |
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Post by medic22 on Sept 16, 2016 17:55:44 GMT -5
You shouldnt see that much change from lot to lot.
I however would start with the ammo. See if you can replicate the issue before moving forward.
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Post by omegahunter on Sept 17, 2016 16:43:52 GMT -5
You shouldnt see that much change from lot to lot. I however would start with the ammo. See if you can replicate the issue before moving forward. All out of the same pound of powder. |
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Post by Jamie Brooks 1John5:13 on Sept 17, 2016 18:40:08 GMT -5
You shouldnt see that much change from lot to lot. I however would start with the ammo. See if you can replicate the issue before moving forward. All out of the same pound of powder. I can't imagine powder lots being that much different; my BiL is very picky, but makes good ammo. I wouldn't buy cheap bullets. Bullets and different amounts of powder will make the biggest difference ...I think. Too much oil in a gun can make a difference too. Something is certainly different in these rounds with that much variability. |
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Post by omegahunter on Sept 17, 2016 19:42:42 GMT -5
All out of the same pound of powder. I can't imagine powder lots being that much different; my BiL is very picky, but makes good ammo. I wouldn't buy cheap bullets. Bullets and different amounts of powder will make the biggest difference ...I think. Too much oil in a gun can make a difference too. Something is certainly different in these rounds with that much variability. Nothing different in ammo. Only thing different was that they were immediately successive shots. Chamber and barrel temp is the only variable. Still have not had the opportunity to test my upper this way. |
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Post by Jamie Brooks 1John5:13 on Sept 17, 2016 19:51:23 GMT -5
I can't imagine powder lots being that much different; my BiL is very picky, but makes good ammo. I wouldn't buy cheap bullets. Bullets and different amounts of powder will make the biggest difference ...I think. Too much oil in a gun can make a difference too. Something is certainly different in these rounds with that much variability. Nothing different in ammo. Only thing different was that they were immediately successive shots. Chamber and barrel temp is the only variable. Still have not had the opportunity to test my upper this way. Did you load them? Were they quality bullets? There is a difference in ammo, and it seems we get what we pay for. I can send you some of mine to try. Like I said, I did put 15 consecutive rounds through a star at 100yds. It blew the thing out. I did have one flyer, and clueless what the deal was with it ...maybe I sneezed. LOL |
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Post by omegahunter on Sept 19, 2016 6:32:10 GMT -5
I used freshly formed Lake City brass, CCI SRP, 18.2 grains H110 (all from the same pound bottle), and Hornady 130 SP's. I think the first four rounds speak to the accuracy of the round as well as when I take mine and my cold-bore shots (one shot only, just like hunting) is always spot on left/right and 2" high at 100 yards. Was busy again this weekend and still not shot mine for a 10 round group. I am off Friday and will try to get that done after my morning squirrel hunt.  |
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