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  1. S

    RSI products

    Has someone experience with the products offered by RSI, especially Shooting Lab Ballistics and Pressure Trace II?
  2. S

    Gyro stability 155gr Lapua Scenar vs. 168gr Hornady HPBT match

    I've checked the Berger twist rate stability calculator to find the gyro stability of a 155gr Lapua Scenar fired from a .308 20" 1/12" twist at 2600fps at 20F and 300feet. It gave me just marginal stability (the BC would be reduced about 8%) . In comparison, the 168gr Hornady HPBT match at...
  3. S

    angle of attack vs. yaw of repose

    Can someone explain me the difference in those terms in simple words?
  4. S

    wind reading downrange

    I've some difficulty to read the wind downrange. At the shooter's position it's fine using the feel method and a Kestrel. However, if your FFP is located in a calm area, it should be even more important to be able to read the wind downrange. At my range, the vegetation gives some signs, but...
  5. S

    seating depth, vibratory pattern and muzzle velocity

    When I develop a load for my .308, I keep the seating depth (0.010") at the same value for all the rounds and just change the amount of powder. The loads with most consistent SD in velocity usually also get very tight groups. For me, there was no reason to change the seating depth so far. But...
  6. S

    bullet pointing and BC consistency

    According to Bryan Litz, pointing of bullets (those without a tip) can increase their BC. But how can I know the new BC they got? Wouldn't that mean, that I cannot rely on the BC data provided by a ballistic solver anymore, but would have to provide own data for the BC? Otherwise, all the...
  7. S

    AB Analytics, BC, velocity and twist rate

    I've played around with AB Analytics (desktop build 0060) a bit. I'm interested, how the retained velocity will change when another rifle twist is used. E.g. 12" vs. 11" vs. 10". Interestingly, the velocity column doesn't change at all (but the windage and drop columns do) . Is that the...
  8. S

    sight height

    Just for the sake of interest, how is the sight height measured correctly? JBM defines the sight height as: Till now, I measured it from the center of the bore to the center (radius) of the objective of the scope. Some thoughts: 1) What if the scope is mounted in a tapered scope base, e.g...
  9. S

    Redding competition neck sizing die runout

    I've checked the runout outside neck of some fired cases. Was between 0.001"- 0.0015". After that, I neck-sized them with my Redding competition neck-sizing die and a .336 bushing. Measured the runout again. Compared it to the measurement taken before. It has increased for a lot of cases...
  10. S

    tall target test

    Does anyone have an idea, what is the correct way to measure the distance to the target for the tall target test ? From the muzzle ? Or the center of the optic? Somewhere in between?
  11. S

    case length and neck tension consistency

    Hi guys, I've got a problem with inconsistent neck tension and case length. I got 300 new .308 Lapua cases last year and prepared them before the 1st firing: - did a FL calibration using a Redding standard FL die - trimmed the cases to 2.005" After that, I did some load development ( used...
  12. S

    expander die with Hornady lock'n'load bushings

    I'm using a RCBS Supreme with the Hornady lock'n'load insert and equipped all my dies with a Hornady lock'n'load bushing for quick swapping. I'm thinking about buying a expander die, either the Sinclair Gen II expander die or the 21st Century expander die . But I've got the impression, that...
  13. S

    ukvarminting.com users

    I'm enjoying the SnipersHide community pretty much. However, I've found ukvarminting.com last month, where some guys seem to have a lot of experience with European powders, which would be relevant for me. I've tried to join their site, but it does not let me create an account. It fails the...
  14. S

    Kestrel 5700 Elite Target Direction missing?

    In the target menu of mys Kestrel 5700 Elite I'm missing the TD (Target Direction) input. According the documentation it should be there: Kestrel 5700 Elite documentation I'm using the current firmware 1.21 . Do you have the same issue or do I something wrong?
  15. S

    headspace, SAAMI, measurement and a lot of confusion

    Hi guys, According the SAAMI specs for the .308Win, the min headspace of the chamber is 1.630", the maximum 1.640". The max headspace of a cartridge is specified at 1.634", the minimum at 1.227" ( max - 0.007) . The datum line for all the measurements is located at 0.400" . Last week, a...
  16. S

    case mouth chamfering

    I'm having a tough time to chamfer the mouth of my cases correctly. I've used the RCBS case prep center so far, with the original chamfering bit. But it requires a bit of force and the 60 degree angle is not ideal in my point of view. It leaves a sharp edge inside the case which scratches the...
  17. S

    case length below min spec

    I bought some new Lapua .308 brass and prepared them to be unique before the 1st firing: - did a full calibration - deburred / verified the flash hole - trimmed the cases to 2.005" - chamfered the case mouth I measured the case lengths before trimming. They varied between 2.006 - 2.010. And I...
  18. S

    Range Report Hornady BC data for .308 178gr ELD-X, ELD-M, Match

    The BC data provided by Hornady is not consistent at all: BC data taken from the Hornady website: Match: G1: .530 ELD-M: G1: .547 G7: .275 ELD-X: G1: 535 G7: .271 The ELD-M got the highest BC, followed by the ELD-X and Match. BC data according their paper product catalogue: Match: G1...
  19. S

    AI AX quality

    Hi, I've got a brand new AX 308 20" with 16" forend rail. Did not fire it yet, but I was a bit astonished about some things: - the finish reminds me a bit the arsenal sar m1 - rugged, but with small scratches and not that perfect as I did expect for that rifle - the quad forend is off...
  20. S

    Rifle Scopes Kahles K624i illumination

    Hi, what is your experience of your Kahles K624i with Mil 4 reticle illuminated to the highest setting? I've recognized that the whole reticle gets illuminated at some point. Not just the cross hairs. At 1st I was happy with that "feature" but there are some distortions visible, probably from...
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