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  1. L

    Group Siz Issue - Neck Tension?

    Good call, should probably dive into that. Seen it on my 6.5 PR Yeah I measured the bushing the best I could and it is within half a thou. The optic is a Burris Signature Series HD, brand new. From what I can tell, it isn’t tracking properly and it will be going back to Burris shortly to get...
  2. L

    Group Siz Issue - Neck Tension?

    Good call, should probably dive into that. Seen it on my 6.5 PRC
  3. L

    Group Siz Issue - Neck Tension?

    I anneal after every firing.
  4. L

    Group Siz Issue - Neck Tension?

    5 shot group minimum, have shot 10 shot groups before as well. Bullet impacts haven’t really shown any surprises over the 50 rounds or so that I’ve had this exact recipe, it has shot much tighter at 500 yards prior to today and the only thing I can finger point is neck tension. I went and ran...
  5. L

    Group Siz Issue - Neck Tension?

    Neck tension is determined by wall thickness, calibre size, and diameter of sized neck.
  6. L

    Group Siz Issue - Neck Tension?

    20 inch pounds on rings, 35 on base and 67 on action screws
  7. L

    Group Siz Issue - Neck Tension?

    Torque has been checked and was good.
  8. L

    Group Siz Issue - Neck Tension?

    300 WSM 175gr LRX 63.9gr H4350 I neck turned this brass before first loading to 0.0145” thickness. I have not neck turned it again and it’s on its fourth firing. I’m starting to see variance in neck tension and today I used a .334 bushing but I found after loading 12 rounds that my inconsistent...
  9. L

    300 WSM - Your Velocities?

    Well the chart before I mess with it calls for -10” @ 300 and -25” @ 400. In reality I’m at -12” @ 275 and -24” @ 375. I agree with the Barnes data showing I should be sending them a lot slower, that’s where the head scratching began.
  10. L

    300 WSM - Your Velocities?

    yeah I’m thinking my velocities are accurate
  11. L

    300 WSM - Your Velocities?

    I should add that a 6.5 creedmoor I just developed a load for using the 127 gr LRX and same chrono to measure velocity punches out bang on in my two different ballistic apps for 275 and 375 yards. So that shows me that my chrono is reading accurately.
  12. L

    300 WSM - Your Velocities?

    Sight height is 1.875” and I’m using the Burris calculator as well as the Hornady app.
  13. L

    300 WSM - Your Velocities?

    275 was 7.75” at 275 and it was actually 12”. 375 yards was 18.86” and it’s actually 24” (averages for 3 shot groups).
  14. L

    300 WSM - Your Velocities?

    Zero was set and then I shot a tall target and never adjusted elevation in the scope. Just a good old tape measure to measure drop. From there I tried dialing in the drop and realized my turrets are definitely out when it comes to dialing it in.
  15. L

    300 WSM - Your Velocities?

    I have just went through load development for my 300 wsm and this is where I am at: 175 LRX (.508 G1 BC) 63.9 grains H4350 Magnum Primers .050" Jump. 24" barrel 2000' elevation. These are steady around 3030 FPS on my chrono. However my bullet drop at 275 yards and 375 yards are -12" and -24"...
  16. L

    Sako 85 Ejection Issues?

    Dealing with this right now with a new to me Sako 85 300wsm. I have to have rounds in the mag to clear my rail but then it hits the windage turret. If I just single feed rounds in then it hits my rail and almost never ejects the round. I already have added padding to my stock to get my eye high...
  17. L

    300wsm vs 7prc vs 7rem mag?

    Very interesting! I’m using H4350, magnum primers and Hornady Brass. 24” barrel. It’s a Sako 85 Finnlight actually. Range is at 2000’. I’m waiting on my modified case so right now I’m just loaded to what the mag will allow. Also very little bullet runout right out of the press with the LRX.
  18. L

    300wsm vs 7prc vs 7rem mag?

    So far with very early stages of load development I’m seeing a lot of promise with a 175 grain LRX out of my 300 wsm. 3045 feet per second and shooting .4” groups. Going to dial it in from there. My fall back node is 2938 feet per second shooting .3” groups. But if I can accurately throw a 30...
  19. L

    300wsm vs 7prc vs 7rem mag?

    With plans to reload, a buddy and I both recently opted out of the 7 PRC and went for 300 WSM’s. He went with a Tilkka T3X. This is my second rifle in the calibre. The 30 cal bullet selection, short action, 300 win mag performance, it’s an awesome choice and I feel like it’s gaining popularity...

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