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Popsbengo

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Everything posted by Popsbengo

  1. Have you considered actually writing to S&B and asking them? We had very good feedback from CCI in response to an email enquiry.
  2. I'll take them please George, I'll PM you
  3. In answer to your OP It only requires a few thou to create the "off centre" zero you report. A combination of ring and rail (or dovetail, you don't mention either), can easily set the scope "off". Plus one for a Spuhr mount. Expensive but there's nothing better.
  4. Just used Geoffrey Kolbe's ballistic app; guess what - 2768fps with the same data inputted. I suppose he could just be wrong too ? I'd take your load data with a pinch of salt unless someone else has similar performance to report. If it were me, I'd check the calibration of my scales.
  5. I see. I've just run your load through Quickload for interest as I've been toying with 300NM, re-barrelling my .338LM 29.5 inch barrel, 1:8 twist RS76 83.4gr Sierra MK 220 Is that correct ? That gives a case fill of just 84% and a resultant MV of only 2799fps. Assuming a typo for powder quantity (for the purposes of sandyb's question) and trying 93.4gr (94% fill and 3110fps MV) - that gives a highly dangerous over-load so I'm pretty sure that can't be what you're using. So how do you get 3120fps ?
  6. how's that 1/4 moa ?
  7. Here's an opportunity to have your say regarding the de-regulation of controls on sound moderators. It take less than 5 mins. https://www.homeofficesurveys.homeoffice.gov.uk/s/M2F0UW/
  8. ah, that makes sense now !
  9. N150 is a bit slow for 155gr bullets. N140 is probably a better choice. N540 is a bit of a barrel burner and I find N140 to be just right. I use 155 Scenar with 43.5gr N140 with Lapua brass and BR4 primers. 2750 fps from 24" 1:11 barrel - good enough to be accurate at 1000yds if the wind's not blowing. I use N150 under 185gr Berger Jugs. and that's excellent
  10. Hi I have a Lee press (used but in very good condition) and a set of Lee powder scales (new, never taken out of the box) Press £45 plus p&p Scales £20 plus p&p Pick up from N. Staffs for free.
  11. This is brilliant for brass in an ultrasonic. https://www.carbusonic.co.uk/-ULTRASONIC-CLEANING-FLUID-JEWELLERY-JEWELRY-WATCHES-TATTOO-DENTAL I drain down and let it stand for a day or so, poor off the clear and dump the crap - top up occasionally. Their carb cleaner does steel parts well but so does dish detergent in hot water
  12. I've just finished reading Jeff Siewart's book "Ammunition Demystified". I came to it via listening to him on Hornady podcasts. Very informative and not too hard going save the occasional equation or two. Four hundred pages related to internal ballistics, bullet design and rifle design. There's plenty of food for thought regarding the root causes of shot dispersion, some quite surprising and not at all common place in the usual discussions on optimising ammo, in my experience anyway. Highly recommended to anyone looking to understand what's happening in the rifle and how that affects bullet motion on its way down range.
  13. Compromise available mag... bad positional or poor shooting form ? you're talking .22 rimfire ! Holding an aiming mark at 1 mile with a .338LM is a bit different I think you must agree and also more appropriate to the previous comments to Ralph's original post.
  14. Never had a problem with rings, I use a tip (I forget where from) to use a piece of lead solder as a buffer between the set screw and die thread. Works a treat
  15. There's something to be said in favour of an Ivey mount or similar to avoid having to use the reticule for elevation hold over. Keeping the scope's optical axis close to centre is optimum for elimination of lens distortion. I may treat myself ...
  16. when you shoot, using your higher magnification, can you get back on target before your shot lands ? If you can that's good to go. There's around three seconds to a hit at the mile. Having a mate as spotter is also good! It's useful to see and measure misses (hence FFP) as there's next to no wind reading options on ELR ranges so the preceding shots are the best info on wind down range. I'm not convinced there's much to be gained spending +£3k. My S&B tracks perfectly (essential for ELR), is more than bright enough and has rock solid parallax adjustment. It's sufficiently rugged to resist knocks and heavy recoil. Not sure what's to be gained in the giddy heights of scopes at +£3k ?
  17. I use a S&B PM2 at 25x for one mile. As OSOK says, good to have plenty of visibility and to get back onto the target for spotting. Mine is FFP in mils. One mile is 18.2 mils for 300gr Lapua Scenar. I have about 30moa rail (mix of moa rail and mil mount) and that's got enough elevation to dial 2000yds. I do have to zero at 200yds though.
  18. Could this offer a glimmer of respite re ever more controls? 😁 https://www.bbc.co.uk/news/uk-68097048 I think I remember how to salute but I refuse to do the assault course...
  19. Success at competition certainly is a good measure but I'm sure you'd agree that not everyone that's good at something competes. Also, not everyone that competes is necessarily good at it either.
  20. Your points 1, 2 & 3 are valid summaries from the videos. Point 4 is completely unfair to suggest "throwing different combinations etc" Statistics and the way they apply them in the videos is sound. It points up the nonsense of people quoting SD from a five shot string (or even 3 shot as occasionally posted on this forum). I don't think they are suggesting that load development can't improve the consistency of ammo, it clearly does - it's just how shooters fail to grasp the reality of small sample statistics error bars and say "oh cool I've got a great shooting load" after a good five shot or even five by five shot NRA (US) grouping. For sure 5x5 is realistic - it's what I do, it's just not a great predictor of possible divergence. The thing that gets glossed over in these discussions is the variability of the shooter him/her self. I don't know about others but I can't hold point of aim like a bolted down bench gun. And that variability is effecting group size but not chrono data. Good consistent well made ammo on the chrono, wobbly old me at the trigger. Group size not relatable to just internal ballistics effects but muddied by inherent inaccuracy of the nut behind the butt.
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