Jul 17, 2014

The Greatest Generation: A Missed Chance

MrsZ had some bodywork done today, patching up a dinged wing that's been an issue for a while. She's home and resting as comfortably as can be expected.

While GfZ and I were in the waiting room killing time before being called back to retrieve MrsZ, there was an elderly gent sitting with his young grandson on the far side of the room. He was any of a hundred older men you might see holding court at the local barber, or diner, or on the bench on the town square... right down to the "NAVY" ballcap.

I didn't get a close look at it until he shuffled by us... underneath "NAVY", in smaller print, was embroidered the legend, "WWII - VB-20".

The nurse called us in to find MrsZ then, so I didn't get a chance to give him more than a smile and nod. I just looked up VB-20. Here's a brief history of the squadron, courtesy Wikipedia:
On October 15, 1943, the squadron was redesignated Bombing Squadron TWENTY (VB-20), and on November 15, 1943 the squadron started to receive its first SB2C-1C Helldivers.
From August 16 through November 23, 1944, VB-20 flew the Helldiver from USS Enterprise (CV-6) for the first of two World War II Pacific Theater combat cruises. The squadron's first combat action occurred on August 31, 1944 and involved an attack on the Bonin Islands. In September 1944, VB-20 participated in pre-invasion strikes on Palau Islands and provided air support for landings on Peleliu Island. In October 1944, the squadron participated in air strikes against Okinawa, Formosa and Luzon. On October 24, 1944, VB-20 participated in the Battle for Leyte Gulf. Squadron SB2Cs flew sorties against Japanese surface force in the Sibuyan Sea, these attacks contributed to the sinking of the Musashi, one of the two largest battleships in the world. On October 25, 1944, VB-20 aircraft were part of the Fast Carrier Task Force that attacked the Japanese carrier force in the Battle of Cape EngaƱo. Four Japanese carriers were sunk during this engagement.
From November 23, 1944 through February 2, 1945, VB-20 embarked aboard USS Lexington (CV-16), for the second of two World War II combat cruises. Squadron Helldivers struck Japanese positions in Ormoc Bay, Leyte, Luzon, Formosa, Hong Kong, the South China Sea and Okinawa.
On November 15, 1946, VB-20 was redesignated Attack Squadron NINE A (VA-9A).
 If those links above don't ring a bell for you... well, go back to History class. That stooped and shuffling old man has seen the elephant.

I wish I'd had made a moment to shake his hand.

Jul 9, 2014

"In the zeroes"

I'm not a true precision shooter. Never have been. Probably never will be. Things like rail guns just don't appeal to me. From a mechanical standpoint, they're amazing pieces of work. From a shooter standpoint? They have no soul. (Say what you will. Sometimes the rifle and the shooter just click. Those rifles? They have souls.)

I may fine-tune a load for the Savage. I expect I'll spend more time reloading each round for that than I have on any other cartridge I've done, because the rifle can use that level of detail. I may well sort bullets and cartridges by weight. I don't foresee myself doing things like turning cartridge necks. I wandered off when the guys at my club's F-class match started discussing the pros and cons of trickling an entire powder charge vs dipping and trickling to final.

That said, there's an article I have read repeatedly over the years that is unlike anything I've found in the gun rags in the last decade. It was printed in 1993 by Precision Shooting, in a "special issue". The article was titled, "Secrets of the Houston Warehouse". It has been reprinted (reportedly with permission) in various places.

It literally was a benchrest shooter’s dream come true, the Camelot of shooting ranges. Here, the breezes never blew, the mirage never shimmered, the sun never set and the rain never fell. Even the harshness of the weather, either heat or cold, was moderated by the insulating properties of the walls and steel roof.
[...]
And so began perhaps the most insightful, revealing experimentation into practical rifle accuracy ever conducted. Over a period of six years, the levels of accuracy achieved in the Houston Warehouse went beyond what many precision shooters thought possible for lightweight rifles shot from sandbags and aimed shot-to-shot by human eye.
[...]
“Day after day, week after week”, Virgil recalled “it would NOT shoot a group in the warehouse bigger than .070".


There is a text-only version here, and a reconstructed pdf here (pictures are not the same). Read the whole thing if ballistic witchcraft is your thing. It's fascinating stuff.

Jul 7, 2014

Range Report: Model 12 (again)

I won't keep dumping target shots in here forever... With that said:

Shot 1 was a called flyer that I knew I pulled, so I took it out of the mix.
Shots 2-5 were the remainder of that string, single-loaded with no particular attention to barrel cooling.
Shots 6 & 7 were taken later, finishing up the box of ammo after another shooter had put several rounds through on a separate target.

I put this through OnTarget.

Shots 2-5 measured 0.55MOA.
Shots 6/7 measured 0.59MOA.

Combined, it's a 0.92MOA group. Six shots. 100yd. Factory rifle. Factory ammo.

If I decide to get crazy about chasing groups, glass- and pillar-bedding with tuned handloads could get interesting.

Savage Model 12 BVSS .308Win
Remington Premier Match 168gr BTHP
86F/light wind varying direction
front bag only

Jul 2, 2014

Rifle: costs

I started wondering what this would cost if I was paying cash out of pocket for the whole kit, instead of horsetrading wherever possible.
Rifle: Savage 12 BVSS .308, from Bud's: $850.
Base: Nightforce-Savage Short Action, Brownell's: $120
Rings: Warne Maxima 1", BassPro: $60
Scope: Bushnell Elite 3200 10x40, Midway: $190

Total: $1220.

It would be entirely possible to go lower-budget on the base and rings and knock another hundred off ... but for a precision rifle, why would you? This particular setup may not be worthy of a Schmidt-Bender or Nightforce optic, but it is entirely capable of effectively reaching 750+ yards. It's worth spending the money to do that properly.

The New Rifle

This rifle has been on my "need to get it" list for a while. Not THIS exact rifle, but a rifle fitting the right niche. I've got .22s. I've got .223/5.56 autoloaders. I've got a 300BLK autoloader. I've got a .270Win bolt gun.

What I didn't have was a ≥.30cal precision bolt gun. My .270, while perfectly serviceable, is a Remington 710 I bought very early in my hunting days. With 130gr handloads, a good bench, and proper planetary alignment it'll shoot 2MOA*. The scope is ... well, "budget" is probably generous. I think I spent $300 on the rifle with scope in a package deal. I don't want to knock the rifle too much - it's killed a few deer at ranges that made me look good (the best being a kneeling 260yd shot) - but it's no great shakes.

My pusher has been trying to sell me a Savage .338LapMag (Model 110BA, if you're curious) he has on the counter. It's a beautiful rifle with a monster scope on top, and I'd love to have it. I am NOT, however, willing to shoot it to the tune of $5/bang. Nor do I have access to a range that will really let me use the reach of a .338. No, I wanted a .308 bolt-action.

I've been perpetually trolling the classifieds looking for something that suited my fancy, and found a "want to trade" that caught my eye. I tossed a trade offer at the guy, we haggled back and forth a bit, and reached an agreement.

The rifle showed up at my dealer last week; I looked it over carefully and pronounced it good. There's a couple tiny dings in the stock, a tiny scuff in the barrel - but it certainly appears to be new/unfired. I grimaced and ordered up a few more things I needed:

- a keg of IMR 4895 powder: IMR 4895 is a classic and well-known powder for both .308 and .223 loading, and a full keg will guarantee consistency as well as provide enough for loading about 800 rounds of both those calibers.

- a set of Lee .308 reloading dies (used), plus a length gage: I have used Lee dies consistently since I started reloading, and have had no issues whatsoever with them. I think I have a set of RCBS .223 dies in the drawer that I have yet to use - but that will change in the near future.

- a Nightforce 20MOA tapered base: I hope to reach out and touch things with this rifle. 500+ yards, even a thousand if I can find the right range. With a 200yd zero, there's a 50" drop at 500yd, or 10MOA. Going out to 1000yd results in drop in the 40MOA range. That would pretty much max the internals of the scope I chose - so tilting it down 20MOA to begin with gives me a lot more wiggle room at longer distance. Nightforce because they're known for top-notch quality and aren't significantly more spendy than other reputable brands.

- a set of Warne Maxima rings: These are bare-bones simple split rings. Four screws hold them together. No little slidey bits to clamp on a rail; they just clamp down evenly from both sides. Medium height seems to have been a good choice. With a shorter rail I might have been able to use low rings. As it sits I will need to invest in a cheek riser of some kind.

- a Bushnell Elite 3200 10x40 mil-mil scope: I've never owned a mil-dot scope before. For known-distance targets they're not needed, but using a mil-dot for ranging is on the "I should know this" list. (Height in yards times 1000, divided by height in mils equals range in yards.) This particular scope because it is relatively inexpensive yet enjoys a great reputation as a fixed-power budget scope. It seemed a good way to try out mil-dot. If I like it, I will start saving pennies for a premium variable power first-plane mil-dot scope.

- a case of Remington Premier Match .308: This doesn't have quite the repute of Federal Gold Medal Match, but is excellent ammo. Also, since I am going to be reloading, this gives me 200 pieces of brass that I know are from the same batch and I can track firings carefully. (Still available at $180/case, btw. Excellent price!)

- a Sightmark laser boresight: Because I hate boresighting by wiggling back and forth between the bore and the scope, and when you're zeroing with match ammo at a dollar a shot, it's worth spending a bit for a tool that can be used again (and in other calibers).

Everything has arrived. The scope is mounted and mechanically zeroed. It's advertised as having 23.5mil (80MOA) of windage and elevation adjustment; I got 19.5mil (66MOA) of elevation and 22.2mil (75MOA) of windage. I am not thrilled with missing 20% of the elevation travel, but if I can zero it at 100yd with enough travel to come-up to a thousand I'll call it good. If not, I'll ship it back to Bushnell to correct or replace.

But wait - the rifle!



It's a Savage Model 12 BVSS, which means a laminate stock and heavy stainless barrel - and in this case, fluted. I ran a dollar under the barrel to check float - and it's free and clear all the way to the recoil lug. It's a heavy rifle; tipping the scale at ten pounds without sights or accessories. I'll be adding a short segment of Picatinny rail to the forearm for a quick-detach bi-pod, and looking for the aforementioned cheek riser.

I'm an unabashed fan of Savage rifles. Their budget rifles have a great (and deserved) reputation for accuracy and the Accutrigger is amazing. I won't make any bones about it: they don't have the fit and finish of some of the big names... but DAMN they can shoot. This is my third Savage rifle and I expect there will be more in the future. My ONE gripe is a personal preference: the muzzle is not chamfered. There's a recessed target crown, but it's a sharp edge at the bore. I'd prefer to see a 45-degree chamfer there, for no good reason other than, "I like it that way."

Now ... why .308? Why not .270, since I have all the equipment to reload for that? There are certainly those who will tell you that .270 is a better cartridge, flatter-shooting, more power at range... and they're sort of right. .270 is flatter-shooting. If you're hunting with a 'plex scope zeroed at 200yd, the maximum point-blank for deer-size game on that rifle is about twenty yards further. At 500yd, the .270 is hitting about six inches higher than the .308. On the flip side, it's shed more than half its muzzle energy - and at 500yd, six inches is 1.2MOA, or about five clicks on the scope. Ballistic coefficient matters when you start talking about long-distance shooting.

Beyond that, .308 has a reputation for being a very tune-able cartridge and components are (usually) readily available. .270 is relatively limited in bullet selection: I just eyeballed Midway and they list 86 different .277" bullets... and 258 different .308".

On to the range report. This was done on an outdoor range with sidewalls and sky baffles, so minimal wind effect (and it was mild and straight downrange anyways). Temperature was 70F. I scrubbed, oiled, and dry-patched the bore at home. Four shots of ZQI .308 were fired to foul the bore and go from boresight to rough zero. A front bag only was used for all shots.

Here's the first four shots of ZQI. I laser-boresighted at 25yd and then single-loaded the first shot. It hit at 10 o'clock on the very outside ring. A second shot to confirm was on the same line but the inside of the 7-ring. I made a few sight adjustment and ended up on the outside of the 9-ring at 3:00. A few more clicks and it drilled the x-ring.

I pushed the target back to 100yd and started in again with the ZQI for a rough zero. Unfortunately, this stuff pretty much fell apart at that distance. It's a lighter bullet (147gr); in fact it's supposed to be a clone of M80 Ball. The Savage has a 1:10 twist and I was warned by NFO that it would probably like heavier ammo. He was right. I made four shots and only two were on paper. I swapped to the Remington Premier Match 168gr BTHP and tried again. If you can read my chicken scratch, it says "Rem P/M 168gr 100yd 2min b/t shot 70F 6:00wind". The first shot was at 10 o'clock on the outside ring. I made a few clicks of adjustment and made the next four shots as pictured. Run through OnTarget it comes out to 0.93MOA:



I made a few more adjustments and then made the mistake of trying to chase my zero instead of getting a group and then adjusting. Whoops...

I let that go, switched to a clean target, and instead of single-loading and waiting between shots I loaded a full magazine (4+1) and shot as quickly as I had a steady sight picture:

I am not displeased by this in the least. Through OnTarget that comes out to 1.45MOA, and I know I can settle it down some with a bit of effort and a better front bag. Also, this is factory ammo, "match grade" though it may be, and once I start neck-sizing and tuning loads I can probably drop another half-minute. I fully expect to see 0.5MOA groups from this rifle in the future.


And the scope... I am now in love with mil-dot reticles. Even without ranging, I love being able to very easily count mils I'm off from zero and dial in that correction at any range. No need to convert to MOA based on range, then count clicks ... just "I'm two mils high; twenty clicks down; done." Brilliant.

Last but not least, whenever I start thinking about these multi-hundred-yard shots, I remember this article: "100 Yards is a Long Way". S'truth.