Author Topic: Diamondback DB15CCB Rifle Journal  (Read 2493 times)

superbeau

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Re: Diamondback DB15CCB Rifle Journal
« Reply #30 on: April 17, 2017, 01:40:25 PM »
@Chris - Haha! The thought definitely crossed my mind while dousing my rifle with lighter fluid that I should be careful about it catching any heat or random rays of sun :-) My girlfriend absolutely thought I was nuts.

@SavsPaw - I love the idea of upgrading my trigger, but I'm having a hard time justifying the cost on this, my "budget" rifle. To spend $200 on an upgrade for a $600 gun seems extreme. Don't get me wrong, though... on my long-range prairie dog gun the trigger job was worth every penny! If I could find a good trigger for $100ish, I might take a closer look.

@Turtle2113 - I'm glad you like this thread and got some benefit from it! Thanks for the suggestions on those Facebook pages, too; I signed up for a couple of them. As for issues with the DB15CCB, apart from that one issue I had with reloaded brass, I haven't had a single issue with my rifle. That said, I have not tried any foreign or steel ammo, but I know others have had good luck using it with their DBs.

superbeau

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Re: Diamondback DB15CCB Rifle Journal
« Reply #31 on: August 03, 2017, 07:03:53 PM »
I recently had somebody ask me about how I clean my DB15CCB. It was an interesting question. I thought to myself, "I clean it like I clean all of my high-performance rifles." Then again, this is my first AR-style rifle, so maybe that's not the best approach. Hmm....

I know some folks buy an AR for its durability and to "ride it hard and put it away wet", as they say. I also know there's a pretty typical routine that many folks follow about overall maintenance of these weapons, which I believe stems from the military manuals, and I think those are great. The part that I wanted to highlight today relates to just the business end of these rifles - the barrel.

Ever since I have owned long-range rifles and spent summers poppin' prairie dogs on the plains, I've always followed a fairly specific cleaning regimen for the barrels. This comes mostly from my dad, who instilled this in me, to ensure that our guns not only lasted a long time and looked good, but so they shot good for the life of the barrel. For prairie dogs, we would shoot up to 20 rounds per sitting, checking the barrel temp every couple rounds to make sure it wasn't overheating - it you can't touch it, let it rest. At the end of a sit, we would take that gun to a cleaning bench. First, we'd send one or two "wet" patches down the barrel, soaked with Butch's Bore Shine, to loosen things up. After it sat for about 30 seconds, we'd start sending dry patches down, one after the other. To conserve patches, we'd send a patch down, turn that one inside-out, and then send it down again. This would continue until the patches came out clean or mostly clean. Then, at the end of each day, we would wet the barrel, use a brush to scrub it out, hit it with another wet patch, and then send dry patches until they showed up clean on the other end.

https://media.midwayusa.com/productimages/2200x1650/Primary/381/381808.jpg
Diamondback DB15CCB Rifle Journal


And that's it! I know this is super obvious to most shooters, but I thought it might be helpful to any folks who are new to shooting. Does everybody agree with this approach, generally speaking? Again, I'm just focused on the barrel for right now, since this whole thread is geared for "cheap accuracy and reliability."

My dad and I just retired a Remington 700 VSSF 22-250 barrel that fired more rounds over the last 15 years than I can honestly count, and it was a tack driver all the way to the end. I'm hoping that I'll be able to say the same for my DB15CCB in the years to come, if I take good care of 'er :main_azn:

superbeau

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Re: Diamondback DB15CCB Rifle Journal
« Reply #32 on: August 07, 2017, 04:20:55 PM »
I was out at the range shooting pistols last weekend, but couldn't help myself, and threw the DB15CCB in the truck as well. Here's a fun slow-motion clip of a V-max 223 bullet from my DB connecting with a plastic ketchup bottle filled with H2O at about 25 yards :main_thumbs_2up:


Chris

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Re: Diamondback DB15CCB Rifle Journal
« Reply #33 on: August 08, 2017, 01:36:44 PM »
Shooting is way more fun when things explode! Well, all except for the gun, that is...  :main_thumbs_2up:

superbeau

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Re: Diamondback DB15CCB Rifle Journal
« Reply #34 on: August 13, 2017, 01:54:28 PM »
Funny turn of events here:

I just finished cleaning up and polishing my sear surfaces (see reply #27) and was planning on installing one of those trigger adjustment screws to remove the take-up in my mil-spec trigger. Then, as luck would have it, my dad won a Timney 3-lb drop-in trigger in a raffle last night. Since he doesn't own an AR, I was the fortunate recipient of this prize :main_grin:

https://www.timneytriggers.com/shop/Assets/ProductImages/667S_Front.png
Diamondback DB15CCB Rifle Journal


As I've mentioned before, I had not planned on spending $200+ on a drop-in trigger and felt like I could get 80% of the way there with a few of the cheaper fixes mentioned throughout this thread. But hey... if you get a free Timney... you have to go with it! I installed it with the excitement of a kid on Christmas Eve and it feels amazing. I can't wait to get out to the range and try it for real.

*** UPDATE - 08/18/2017 ***
Wow - this trigger is amazing! That pretty much sums it up. I still don't know if I would have paid $225 for it, at least not for this rifle, but it is pretty sweet. That said, I was looking forward to testing out the trigger adjustment screw; they seem really slick and I bet they'd work wonders on the basic trigger since the take-up is so long. If anybody tries one of those screws out, please let me know how it works.

Chris

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Re: Diamondback DB15CCB Rifle Journal
« Reply #35 on: August 13, 2017, 04:10:28 PM »
That's just awesome! Dad's can be so great, especially when they win stuff they don't need! LOL. You'll be way better of with the Timney that the adjustment screw which simply reduces travel to break, or sear/hook overlap. Also reduces safety to break unless you're sure the sear/hook angles are correct for the shorter travel distance. I have a Wilson Combat single stage TTU, and, like the Timney and some others, triggers these days can't get any better. It's a great time to be a shooter.  :main_smiley: 

superbeau

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Re: Diamondback DB15CCB Rifle Journal
« Reply #36 on: August 19, 2017, 12:38:36 AM »
Well, after having a rough day at the range recently, I wanted to go out tonight just before dark to verify that everything was working right. Although it's a short shooting window, I love the last hour before dark because there's usually no wind, and that was exactly the case tonight. I had cleaned my barrel well after the last outing because it was shooting all over the paper, which is not typical. Tonight though, the results were more as I've come to expect from my DB15CCB shooting American Eagle Tipped Varmint 223 50-grain at 100 yards.



I thought this was interesting to share because you can see that my first shot (clean bore, cold bore) was 2.5" high but dead-on left/right. Then my second and third shots were... as the monkey that went pee in the cash register... right on the money.

So that got me thinking - what changed from the last time I shot (terrible groups at all distances) to today (almost touching)? Here's the list that I came up with off the top of my head, but it's all speculation since I didn't do any sort of process of elimination to figure it out. Interesting list to consider, though:
  • No wind this time; some wind last time but not enough to cause shotgun pattern
  • Last time I shot some Winchester bullets with Lubalox coating
  • It was 82F last time and 75F this time
  • I fed one round at a time into the chamber this outing; last time I fed through the magazine
If I can narrow this list down, I will let y'all know! In the name of science, of course :main_winkani_ncc:

*** UPDATE - 08/22/2017 ***
I was doing a little research on this issue and came across a research report from the US Air Force Academy on the affect of coated bullets on accuracy. Based on the report, the summary is "The different coating and bullet combinations produced changes in friction ranging from reductions in friction of 15% to increases in friction of 19%. Given the time and expense of coating bullets, the reduction in friction is not cost effective for most applications." If the Lubalox coating is creating varying levels of friction = velocities = POI, then it is at least plausible that shooting those Winchester bullets during my previous range trip could have caused my accuracy issues. Then, after cleaning the barrel, this issue would have been removed and accuracy restored, as was seen on my more recent range visit. Anyways, no math behind this, but an interesting theory nonetheless.

*** UPDATE - 08/25/2017 ***
I had another beautiful, calm night at the range for some shooting. I only used AE Tipped Varmint ammo this time around and my DB15CCB shot great, even out at 300-400 yards. There was no wind and the was about 70F, so I think I can safely narrow my issues list down to 1) Lubalox coating from Winchester ammo, or 2) something with feeding from a magazine versus putting one round at a time into the chamber. I'm out of those Lubalox bullets, so next time I'll try shooting specifically from the magazine and make sure it works as it should. Today I fed one round at a time, so I wasn't able to eliminate that variable yet. More to come next time!