I always thought that too....until I was pulling Fowler's target when he shot 200-23x at 600yds at Palo Alto in significantly changing wind valuesSounds like your that guy that needed to be the tie breaker. I've never run heavier than the 180 class in my 284s. Kinda figured they'd be close with slower velocities but a higher bc number. It's a trade off especially when the 180s do so well. I think you'll be real close on wind using both. Certainly the heavier bullet will do better in wind even at equal numbers but I believe the 180 class bullet to be superior in the 284 cartridge for the 600/1000. Just my opinion.
I consider the 180/183/184 to be in the 180s group of bullets. I think they've been the mainstay for the 284s.I always thought that too....until I was pulling Fowler's target when he shot 200-23x at 600yds at Palo Alto in significantly changing wind values. If I recall correctly Jim was shooting 184's. He was dropping most of them within a 50cent piece area in the upper left quadrant of the x-ring. I have not got the 190's to group as well as the 184's yet.
I will respectfully disagree with those above. If I were starting new with a Shehane, no doubt I would start with the 190g Berger LRHT. These bullets come pointed from the factory and the BC improvement is real.
In JBM, if you start the 184g bullet at 2820 fps (typical node) your drop/drift for 1000 yards for a 10mph cross wind is 26.5/5.4 MOA, at 2870 fps (another node) your numbers are 25.4/5.3 MOA. The 190s only need 2700 fps for the following numbers 28.3/5.3 MOA.
So the drift in 10mph cross wind for the 190s is the same as the 184s going 170 fps slower.
I know for a fact that the 190s are easy to get to 2720 fps in a straight .284 without pressure and great precision.
Time will tell if they will have the precision of the 180g Hybrid, which is the standard in the 7mm for long range Fclass in 7mm diameter.
When I use to shoot the 180 class bullets in my 284, I contemplated improving the cartridge but instead did some research on the Reloader 17 powder and gave it a shot before re-chambering and fire forming etc. The results were better than I hoped. Being a non competitor and using my rifles more to hunt and shoot steel at the longest ranges I can find in my home area, I didn't need tons of accuracy but wanted .5-.75 moa. Also I didn't want pressure and a premature barrel burning powder. I heard both were the case with the RE17. Well, 1500 rounds later and zero pressure signs, it's my go to powder for the 180 class bullets. My load was 180 JLKs, 54.9 grains RE17, COAL 3.182. Velocity 3073. ES 4/ SD 2.2. Broughton 30" bbl.Who shoots 180's out of a .284 Shehane at 2820 fps...might as well be shooting a straight .284? IMO, 2820 fps for the 180 out of a Shehane is about 100 fps too low.![]()
My experience with it has been good so far. I don't shoot it in summer weather but typically winter, spring and fall. Haven't notice much sensitivity from those temp ranges either. At least not for what I use the gun for. I understand that temp spikes up can make issues. Even when I shoot in warmer temps or in the sun, the ammo is in a cooler. Typically if I'm running long strings of fire, I'll cool the chamber/barrel when it gets on the warm side. So far so good at this point.Rl17 can make great speeds and great groups but be careful to develop your load in the conditions you’re going to be shooting in. Temperature change can turn a hot load into a dangerous load real quick with that powder
Guess 2730 out of a Shehane with a 180 was way to slow lol those slower nodes have always held a significantly tighter vertical for me at 1000. I’ve sped up to 2790 with 184’s but just got some 190’s to try.Who shoots 180's out of a .284 Shehane at 2820 fps...might as well be shooting a straight .284? IMO, 2820 fps for the 180 out of a Shehane is about 100 fps too low.![]()