Numbers don’t lie so if you want to see those numbers, scroll down and check ’em out.
Definitely seeing a velocity boost evolving during the treatment phase. Looks like SD’s are growing but we won’t know the long term trends on this for another week as there are more shots to fire. Treatment phase is 5 sets of 5 shot groups. Between each group we apply a very light coat of MSS Accuracy Oil down the bore on a patch wrapped around a brush. That pulls the carbon out pretty well and puts another layer of their crazy effective lubricating oil down the bore.
This test data shows 50 rounds of history gathered during bench-rested zero-checking, load development and grouping data collected over the last year with me not cleaning the bore at all on my heavily customized, Columbia River Arms barreled Mossberg MVP .223 followed by another 25 rounds of very recent history from last weekend’s testing with MSS’s cleaning system being used.
Avoiding much discussion of velocities we can look at group sizes. This rifle with this load has been a pretty consistent 1-1.5MOA rifle. It doesn’t like this load, never has, and that has annoyed me because it should be a killer load. During the testing and doing the Accuracy Oil re-application treatments I saw very consistently that the first shot was wild, then the 2nd-5th shots gradually closed in on each other finally ending with shots 4-5 stacking on top of each other. Overall group sizes started at 1.2MOA and by the end of the initial Accuracy Oil treatment plan had reduced to a very nice group under .7MOA with the last 3 shots touching and the first 2 just slightly off that cluster (could have been shooter error but I doubt it). This behavior was consistent from the first string to the 5th string. I have not cleaned the barrel after shooting. I did run a patch down the bore with Accuracy Oil on it though. Before shooting next time we’ll run a few dry patches down the pipe to make sure it’s completely dry and then we’ll see what happens.
Each string below represents a 5-shot set with statistics reported for the string. This load has slowly evolved over the last couple years with a little OAL and a little powder being added between string 1 and string 9. I stopped messing with the load spec after string 9 because I just wasn’t shooting the gun. Now I’m sticking with that practice while we finish up our testing. 75 rounds in to the testing we’re seeing definitely trend line activity but we’ll save the analysis and conclusion drawing until we have more data.
So what do you think? Will this trend continue? Will it even out? Will it reverse? We shall see.
Note: This is not one of my match loads. This is a load I never shoot in competition because it’s not been consistent enough. I’ve wanted to do a little more work on it because it’s a really mild load with long legs. I chose this load because it’s not a one-holer out of the gate so we have some room to see if MSS’s claims are worth taking seriously. So far, they’re at least intriguing.
Do you know what a standard deviation is? If not, start with the Wikipedia entry on that then come back. The document above is rife with terminology from statistics. If you don’t understand the really quite simple definitions though you’ll probably miss the point.
What the document above says in short is that, all else being equal, a cold-bore shot on an animate or static man sized target beyond 700 yards is more or less a pipe dream. In fact, a first round hit even by a highly qualified shooter beyond 400 yards on a man sized target starts to get to less than 99% certainty of impact of metal anywhere on meat.
In a continuation of our re-launch from the close call earlier this year, we’re launching our new logo. This new logo will begin adorning the website and all new versions of BallisticXLR, BallisticPRS, BallisticRexLR and our latest product being announced separately. Big thanks to my ever present partner in crime Wouter for crafting this killer logo.
When I picked it up, I got it only because it could take my 20 & 30 round AR-15 magazines and I was in to squirrel shooting and preparing a trip to Cedarville, CA for their annual Squirrel Wars event. I was going to not spend all day loading mags this time and didn’t want to use an AR-15 again. Bolt action seemed better.
I ran over to my closest Big5 Sporting Goods and they had one on the rack with a $50 off sale price. So I snagged that right up. It was a 24″ varmint model and I was happy as a clam, for about 2 days. Within those 2 days I pulled it apart and found it was bedded with plastic, the stock leaned to the right down the barrel channel and action screw torque was unrepeatable. Fine. It’ll shoot. Right?
Well, I tossed on a Bushnell 10x40mm optic, some Burris Signature Series 1″ rings and a bipod and went to the range with some steel cased russian 55gn FMJ. The gun printed nothing inside 1.5″ at 100yrds. Ok, let’s start replacing parts. That’s always the right thing to do. Right? Using better ammo wouldn’t help, obviously. That said, I did start some handloads for it and found it had certain proclivities toward heavy weight bullets and being pushed to primer popping pressures.
So, I found out the Bushnell optic was not tracking consistently. While it was back at Bushnell being replaced (This is a common theme with the 10×40’s. Of 4 of them I’d bought, 3 needed RMA’d) I added a 16×42 fixed power SWFA SS optic and 30mm Burris Signature Series rings. I took that out squirrel shooting and was not impressed. Accuracy with 40-55gn ammo was horrid. With heavier stuff it started performing though. So, change of plans. It’s not a squirrel gun anymore. It’s a match rifle. See, I’d just gotten into a regular local prone long range precision match and needed something inexpensive to shoot there. Well, one trip in and that factory stock was shit-canned. Replaced with an MDT LSS chassis, DPMS PSG-1 pistol grip and a Magpul MOE buttstock. That did really well and I managed to turn in the 2nd highest score ever with a .223 at my regular long range match. That still stands. I haven’t bested it to date.
Not too much time passed and I came into a big bonus so I wanted a major optics upgrade. A quick call to US Optics and I had 2x ST-10’s on the way for various rifles. Epic scopes. Simply wonderful. I took that out with my spotter/best friend, The Disco Tripper, and we turned in some groups on steel. Man that combo could shoot. Running 70gn Berger VLD’s and 75gn Hornady BTHP it was an easy gun to hit long range steel with. I mostly kept those ST-10’s on my bigger guns and used the 16x SWFA optics though. They’re a lot harder to use than an ST-10 but I wanted the extra magnification for the aim-small-miss-small thing.
Once we got to this point my coach started harassing me about trying a bedding job on the chassis. So we grabbed some epoxy and fully bedded the recoil lug and skim bedded the action. I also added a MOE cheek riser to the butt. Instant improvement came from the bedding in that no more flyers plagued me. That settled her ass down nicely and I shot quite a few matches as well as a bunch of informal plinking sessions with the gun. The cheek riser had the rifle as comfortable as if it were injection molded around me. I’ve not yet gotten the rifle in its current form to fit quite that nicely, mostly due to time.
I have been able to shoot the living piss out of it regardless of whatever else is going on because it’s a .223 and very inexpensive to load for. That’s been a saving grace with this project.
It was about the time that my barrel was starting to really age that I also decided to upgrade basically all of my scopes. I started with some more US Optics in the form of an ER-25 for my .308. Not the best choice. It worked great on the big 7mm Remington Magnum (below far left) but not so much on the .308. It was also just too damned big for my safe. No rifle fit in there with the ER-25 on it so I had to bounce that optic and began a long journey of horse trading to end up with what I have now which is more US Optics but these fit in my safe and you’ll see them further down in this article. One thing I was really trying to nail down was parts commonality so I could take parts off of one and put them on another if the occasion arose that it was necessary. My mindset was really into TEOTWAWKI at the time. I’m in a better place now that President Daddy is in the White House.
It wasn’t too long after I’d bounced the larger US Optics ER-25 and an ST-10 in favor of a set of Vortex Razor 2 HD’s. One in 3-18×50 and the other in 4.5-27×56. They are excellent scopes but I hate hate hate pinch screws on turret knobs for exactly the reason that I bounced those Vortex optics. They loosen enough to not adjust when you twist em’ but they still click and it happened multiple times on both turrets of both scopes. Plus they’re heavy as all get out and the 3-18x on the MVP was in MOA because that’s what I could get at the time. All combined I just was not happy. So, I looked around and looked around and finally after almost a year found a US Optics B-17 I could sell the 3-18x Razor and buy. Excellent choice. I guess I’m just a US Optics guy.
I ditched the factory trigger early on and got myself a Jard and a Timney. The Timney spends most time on the rifle. The Jard is special purpose and breaks at just ounces. It’s not a safe trigger for most use cases but it’s brilliant when I’m trying to hit chicken eggs at 500m. The Timney doesn’t have that annoying blade in the middle of it but otherwise is set about the same, 2.5lbs.
The first Razor 2 to go away was the 4.5-27x Razor II because I had a buyer for it and something on the line to replace it with. I sold it and had enough money left to buy a used US Optics SN3 3.8-22×44 ERGO on a 35mm tube in MOA with a really slick Dragunov style reticle that heavily uses chevrons. It’s a battle ready optic for sure. My coach decided to get into long range prone though and needed a scope so that went on his gun. Now I needed another. Begin the long look for just the right swap.
I shot Project Rolling Stone in variations of one form for a good long time. Long enough to burn out the barrel. Truth be told I’d more or less killed that barrel the week I got the gun. I had a bunch of steel cased Russian bulk ammo with bullets that were copper washed steel and started the gun on those. That must have eaten half the barrel life. By the time I’d had around 3K rounds out of it (IIRC, it’s been a while) that barrel just wouldn’t reliably hold the match level accuracy I needed. It was fine for a sportsman, and I gave that barrel away to a sportsman later on, but not for a match long range precision gun. Thing is, only 1 outfit had reportedly made any small ring MVP barrels and they made them shouldered instead of barrel-nutted. I also wanted a particular barrel maker’s barrel. Black Hole Weaponry. Why? Well, their pipes are just too easy to deal with, shoot excellently, clean easily, are inexpensive, stainless and come threaded at no extra charge.
Once I got that barrel situation settled then I wanted to do a little something with the finish. So I got the idea to make it look like a Sonoran coral snake. 3 months of beating on my local Cerakote guy and getting nothing but excuses later I finally got it back, literally hot from the oven and the scale pattern was backward. Fuck! Well, such is life. Only dorks and herpetologists ever notice. What everyone notices is he didn’t finish the last 4 inches of the pipe. Dick! I eventually got it back and had my 26″ pipe at 1:7 twist in Caudle 3-groove polygonal rifled 416R stainless steel. I bought a bunch of 73gn ELD-M projectiles and a ton of new PPU brass and have been swatting steel on the regular with it since.
It was such a hassle dealing with the Cerakote guy that I did my .308 barrel with rattle can spray paint and it actually turned out pretty cool despite me not having much experience with this sort of thing. I used the mesh plastic thingy they send barrels in to make the scale pattern and 3 colors of paint with blue painters tape.
Then at some point one of the guys at Primary Arms and another guy from Accuracy Solutions were both interested in how their assorted products would do at my monthly long range prone match. Being a good sport and a bit curious, I set out to find out. I added a Primary Arms 4-14x FFP ACSS HUD/DMR optic and an Accuracy Solutions BipodEXT to the gun. I also switched out the Magpul MOE based butt section for an XLR Industries Tactical stock to gain full adjustability which I wanted for various reasons but mostly because I needed a proper cheek weld with the PA optic on there. The Primary Arms scope works if you trust and use the BDC reticle and did not do well at all when using the mil dots and calculating. This also is predicated on getting the bastard to establish or hold a zero. This isn’t my first rodeo with the PA 4-14×44 FFP. So far every one that’s been to one of my classes has been what I’d call defective in one way or another. Glass is routinely milky, turret click values are wishes at best and inconsistent click to click and across the range, getting one to hold zero is almost as fun as trying to establish a zero. You’ll end up needing a screwdriver to beat the shit out of the scope with after each adjustment. The BipodEXT was brilliant. It put the axis of rotation out in front of the muzzle which increased the lever length enough to make it like shooting from a machine rest. All wiggle was gone! I would recommend the Primary Arms low end line as targets rather than as optics. The PA Platinum line, on the other hand, are fantastic optics that work as advertised, just like the price suggests.
Having finished with testing stuff I didn’t want to use long term and written the appropriate articles, I went back to perfecting the combo and slapped a US Optics B-17 on top. To finish the whole thing I bounced my usual Harris 6-9″ swivel type bipod and put a new AccuTac BR5 into my kit. That’s a beast of a bipod.
I get a lot of strange looks and a lot of people stopping by to make comments from snide to supportive about the rifle and all my rifles for that matter. It’s my toy and I’ll play with it how I like to so I don’t mind when they get snide or chiding. All my match guns are meant to elicit a visceral response. Partly that’s to destabilize my co-competitors mentally so I have a better chance of them doing shitty. Part of it is just for conversation starting. Part of it is, I like these rifles and I like to make them look how I like them to look. I betcha you’ll never find another coral snake gun or another hot dog gun but everyone and their sister has a Hello Kitty AR-15 or a scale pattern on the entirety of their AR-15 or shark teeth, etc… Just because they’re unoriginal repeating pieces of camel poo doesn’t mean I have to be unoriginal.
If you do the math, this gun has cost me a pure fortune. $600 for the base gun, $750 in various stock parts, $5500 in various optics, $40o-ish on triggers, $300 on barrels, $300 on rings and mounts, $10 in muzzle devices (A2 birdcage) and $100 in Cerakote and spray paint. So there you go. I’m about $8,000 in if I’d had to buy each piece at full price. Thankfully, I did a lot of swapping this for that and either reselling or directly trading most of the time so my actual spend on the gun as it sits is closer to $2500US in real money spent.
That said, for $2500 I’ve got a .223 that will easily swat a bad guy or a critter to well beyond the effective range of the bullet it shoots and shoots well under .75MOA. It’s got the best parts on the aftermarket on it without resorting to blatantly overly expensive bits that are just more expensive without being any better. I know a lot of folks with $2500 in an AR-15 that couldn’t shoot a 3/4MOA group to save their skin. I’m pretty happy with what I have here.