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Ejcb

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    Berkshire, UK
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    All things firearms, ammunition and ballistics.

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  1. As below, unused A5, looking for £975 ono, buyer pays postage.
  2. Would you suggest the rifle would be safe to fire in this condition- I appreciate the photo isn’t excellent!
  3. Hello all, My friend and colleague’s Bergara HMR in 6.5 seems to have some gouges in the rear of the bolts locking lugs. I have not had a chance to inspect the action for similar. He keeps them greased so am unsure what caused this - perhaps grit? I advised him not to fire the rifle until he was advised otherwise by a suitably qualified armourer etc - however would like your opinion on this. The second photo shows the gouges which to my eyes are significant. Thoughts?
  4. Decent 3 shots at 1000 y from factory ammo and a semi half decent bit of luck on the wind
  5. David - many thanks - considered this but will try and get one which attaches to my boretech rods
  6. Many thanks for your feedback mate!
  7. hello all, here is the bore scope result. it is limited to the base of the chamber witout any trace in the throat or lands etc.
  8. Many thanks - will order a .45 for the 6.5CM chamber and a .375 for the .223 - I think?!
  9. Chrome moly - have a bore scope arriving so at present it appears to be rust - good idea on the brush!
  10. Hello all, have two Tac a1s, I keep them clean and looked after using boretech products. however I recently discovered some light rust in both rifles chambers, the gun room and cabinet clearly has a humidity problem so will be shoving as much silica gel type products in there ASAP. however, I didn’t expect this given I was using bore tech eliminator, which itself is recommended as a bore cleaner as well as an anti rust measure. have read that EEZOX is a gold standard in anti rust, so will give that a try before putting the rifles away, and clean out the bore and chamber before shooting. thoughts welcome!
  11. Ejcb

    Pressure signs?

    Hi kaboom, bolt lift was fine, and the load is below the max load below:
  12. Hi guys, Managed to to test the 4451 / CCI450 / 147 ELDM / Lapua 6.5CM SRP brass combo at bisley. I used a magnetospeed v3 on my 24" Tikka Tac A1 using an MK Machining mount, so the chrono wasn't attached to my barrel. The wind 10 to 20 MPH from all angles, air and ammo temp was 21C, measured with a kestrel and laser thermometer respectively. All loads grouped well despite the wind, so I focused on SD/ED and will shoot for groups another day in more favourable conditions. The below 40.6 grain load had excellent figures, but is quite slow - however Tikka barrels can be known to be slow, however given the relatively warm ammo temperature of 21C, on a more common, cooler day I may see a lower MV, although the IMR Enduron range are meant to be relatively temperature insensitive - ( https://precisionrifleblog.com/2016/06/19/powder-temp-stability-hodgdon-extreme-vs-imr-enduron/#:~:text=That%20is%20very%2C%20very%20low,to%20large%20swings%20in%20temperature. - approx 68 FPS from -3 to 60C) Unfortunately the other shots of the below series were not recorded, however they grouped very nicely at 600 and seem to have good SD/ES. I did however notice some marks on the Lapua brass after their first firing, I am unsure whether this is brass wipe or smear from the virgin brass on the bolt face during fireforming, from bolt unlock and cartridge extraction, or from excessive pressure. In the picture below the 41.2 load cartridges have been arranged to place the ejector marks at the 6 o'clock position. What are your thoughts?
  13. Hi guys, Managed to to test the 4451 / CCI450 / 147 ELDM / Lapua 6.5CM SRP brass combo at bisley. I used a magnetospeed v3 on my 24" Tikka Tac A1 using an MK Machining mount, so the chrono wasn't attached to my barrel. The wind 10 to 20 MPH from all angles, air and ammo temp was 21C, measured with a kestrel and laser thermometer respectively. All loads grouped well despite the wind, so I focused on SD/ED and will shoot for groups another day in more favourable conditions. The below 40.6 grain load had excellent figures, but is quite slow - however Tikka barrels can be known to be slow, however given the relatively warm ammo temperature of 21C, on a more common, cooler day I may see a lower MV, although the IMR Enduron range are meant to be relatively temperature insensitive - ( https://precisionrifleblog.com/2016/06/19/powder-temp-stability-hodgdon-extreme-vs-imr-enduron/#:~:text=That%20is%20very%2C%20very%20low,to%20large%20swings%20in%20temperature. - approx 68 FPS from -3 to 60C) Unfortunately the other shots of the below series were not recorded, however they grouped very nicely at 600 and seem to have good SD/ES. I did however notice some marks on the Lapua brass after their first firing, I am unsure whether this is brass wipe or smear from the virgin brass on the bolt face during fireforming, from bolt unlock and cartridge extraction, or from excessive pressure. In the picture below the 41.2 load cartridges have been arranged to place the ejector marks at the 6 o'clock position. What are your thoughts?
  14. Thanks for your input - appreciated. my mates dies were fairly sooty, coupled with excess lube, most likely created the issue.
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