Recent content by K0na_stinky
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K
139 Scenar, HPBT vs OTM
We got out shooting today with the 6.5mm 139gr OTM’s and the old HPBT’s. My drops with the HPBT’s matched the ballistic calc perfectly out to 926 yards. The OTM’s had ½ MOA more drop at 665 yards and 1 MOA more drop at 926. I fudged the ballistic coefficient for the OTM’s until the...- K0na_stinky
- Post #3
- Forum: Reloading Depot
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K
139 Scenar, HPBT vs OTM
Yep I noticed this as well. No one seems to know what is going on. I read about one guy that got a new batch of the OTM's and he figures they are back to normal now. If anyone knows if the G7 BC of 0.290 for the (large meplat) OTM is accurate please let us know!- K0na_stinky
- Post #2
- Forum: Reloading Depot
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K
RL 17 and a good starting point for 140 A max
So far 44gr at 69*F got me 2874fps and at 85*F got me about 2880-2890fps. Thats about the best I can do until I get a good load going and wait until winter temperatures. I went out on a hotter day to do a ladder test. It was 85*F and I got my first pressure sign at 44.3gr. When I...- K0na_stinky
- Post #7
- Forum: Reloading Depot
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K
RL 17 and a good starting point for 140 A max
I went out again today. I tested up to 44gr. 43gr - 2791 43.5 - 2830 44 - 2874 Shot again at 69*F. The primers are starting to flatten but no cratering what so ever. Looks like I will have to shoot another ladder test going to 45 or 45.5gr but looks like I have a node...- K0na_stinky
- Post #4
- Forum: Reloading Depot
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K
RL 17 and a good starting point for 140 A max
So far this is what I have. I just started working up a load on Saturday. RL-17 starting at 37gr and working up to 42.5gr. Lapua brass, Fed 210 primer, Lapua 139gr Scenar. Shot from a factory 24" Tikka at 69*F 37gr. - 2329 FPS 38 - 2374 39 - error 39.5 - 2487 40 -...- K0na_stinky
- Post #2
- Forum: Reloading Depot
