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  1. S

    What 7mm for a mile

    The problem is barrel life and brass. That RUM has more case capacity than the 7/338 I tested. Last year was the year of the 7s for me. I built a 7/338 laupa to start with. That gave freakishly low velocity spreads with H50 and 215m. The catch was it worked best at lower pressures that only...
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    Best "Balanced" caliber for ELR

    A good set of baseline 300wm components is Norma Brass, 210M primers, H1000, and the 230 Hybrids. I ran that at 2860 fps out of a 30" barrel and cases went for 8-10 loadings. The reamer was the PTG TacMatch with a 97 thou lead. The 230s touched at 3.625" OAL. That'll work with a 1:10 twist...
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    Best "Balanced" caliber for ELR

    We should probably clean that up before Oscar has a fit. There is only 1 URSA shooter point with the 198s, so I'm going to assume you're talking about me. Back in the day, I was hounding you for more BC data on those 198s. Shooter points are earned with a score of 5 or better out of 10 in a...
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    Best "Balanced" caliber for ELR

    I'm not sure about balanced, but either of those those calibers both work well to beyond 2k and have enough barrel life you can learn a thing or two. I started ELR with a 300wm & 230 Hybrids. My favorite practice gun these days is a 7/300wsm shooting 180 ELDm blems. It'll go 2-3/5 on a 32x36"...
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    questions on bullet angle and ricohet

    1. I put your inputs into AB Analytics and guessed at the remainder. The 1190 yard elevation was 11.59 mils, 1210 yards was 11.99 mils, for a 0.4 mil drop over 20 yards. 0.4 mils at 1200 yards is 1.2 * 36 * 0.4 = 17.3". It covered 20 yards or 720". ATan(17.3/720) = 1.4 degrees. The...
  6. S

    .223 chamber

    223 Match reamer, then used a throating reamer to seat a 75 ELDm to 2.525" OAL.
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    Gunsmithing Truing an action

    Depends. Truing is used to describe several operations or sets of operations. It can vary from superficial to a nearly completely re-machined system. With a "short" true, only the barrel tenon threads are cleaned up. The lugs and front of the receiver are squared off to that operation. You...
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    Rifle Scopes Not sure if I put this in the right place - Gen 1 Razor deals

    This question is fine here. The $1300 deals happened when Vortex discontinued some of the Gen 1 models and trimmed the line down to just 1 model each in mil and moa. That was some time ago and those deals are long gone. Liberty is a great place to get it, I've bought 2 of them there, but...
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    New Potential World Record ELR Shot

    I suspect the reason nobody has done it is there hasn't been anybody try it who is serious about ELR and who takes that standard seriously enough. That probably includes AB. Derek ran the table at the KO2M to 1888 yards. Didn't count as a world record because the later strings weren't...
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    Flashers for ELR steel targets

    Not sure about your idea of good, I stopped attending the NorCal matches the winter before last because none of the URSA's 6 IRIS systems could be made to work several events in a row. We found impacts on the target when there had been no lights. We made 3 trips to the target one event when...
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    Gunsmithing Savage pre-fit chamber depth

    You're reasoning and math are correct. The gauge protrusion on a Savage should be the bolt face depth + some clearance. I've seen up to 0.030" clearance on factory Savages, most smiths will leave the clearance between 0.005" and 0.010". It sounds like you and the barrel manufacturer are...
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    Gunsmithing Need a source for "Grizzly" rods.

    Manson catalogs them, not sure about in stock
  13. S

    .338 Lapua Magnum "Generation II" Development

    If you are successful in finding a powder that emulates the effects of a larger, slower burning, charge in a larger case, do you expect that the barrel life will be any better than the same performance gained with current methods? If that powder comes from outside supplier, what will...
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    Flashers for ELR steel targets

    I have the IRIS system, but don't use it anymore. We've gone to highly reactive, but consumable, steel targets. We set up a range late last year with 4 targets from 1200 to 2200 yards. We wanted to leave the targets set up and avoid trips to them every time we shot. A local steel shop cut a...
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    Gunsmithing Preboring ?

    The idea is to set up 2 points that align the reamer as far apart from each other as possible. The purpose of taper boring isn't to save wear on the body portion of the reamer, that section doesn't remove much material anyway. The purpose of taper boring is to get the reamer deep enough into...
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    Gunsmithing Preboring ?

    With minor variations, this is what I do. The primary reason is to let the tooling do what it does best. The single point boring bar cuts a coaxial hole. The reamer follows that hole and fills in the details. With short action calibers, you can take a big chunk out of the reamer travel with...
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    Vectronixs PLRF 15?

    I've had one for a couple years now. I bought it to reliably range out to 2 miles and it's never failed to do so. Off a rest, under ideal conditions with large reflective targets, I've gotten measurements to nearly 6000 yards. It reliably ranges to 3500-4000 yards on hillsides and brush on...
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    Gunsmithing Determining freebore

    The PTG 300WM Tac Match reamer has 0.097 free bore. The 230 Hybrids touch at 3.620" in the half dozen chambers I've reamed with it.
  19. S

    Gunsmithing How to remove modeling clay...

    Next time try Silly Putty, it's much easier to clean off
  20. S

    Savage Model 10 - Trigger Replacement

    I'm an engineer, have been for 33 years. Worked my way through college as a mechanic and automotive machinist. The Sav-2 comes too tight to fit on the action. If its too loose, someone made it that way after they opened the package. It has to be fit to each action by someone with at least a...
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