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So currently I am running a load that came with my rifle. 72gr 2217 under 162 A-Max giving 3035 fps. Seems to shoot bloody well (.5MOA consistent).
However being the tinkerer that I am, I was keen to do some load development. I have two ideas - first being trying a hunting load with the A-Max using 2225, and the second being a load using a 180gr pill for LR gong shooting.
Anyone played with the above ideas and have some insight for me?
My opinion is that 2225 is too slow burning for a case that size. 2217, RL22 and 2213 would be the powders I'd try.
I'm shooting 2217 in the RUM, 2225 was ok, but I think it may have been just a touch too slow
NOTE: Barrel is 26"
Weight Powder Barrel Start FPS Max FPS
160 AR2217 24" 63.0 2730 - 66.0 2840
160 AR2225 24" 65.0 2755 - 69.5 C 2915
From the adi website.
Your 6g over max for 2217, so you will be over 2225 max to start with, max is already compressed. I don't think you will get enough powder in the case
26" - sames
Another 'opinion' of mine :D is that if its not fucked, dont mess with it!
I find it ALOT more fun to dick around with smaller cases for the sake of it.. less beating on you and the gear, esp if it has 'Magnum' in its name.
ADI is way out on the 2217 loads as far as I am concerned.My load is by no means hot in a reasonably tight chamber. I would expect I could push over another grain in there without pressure signs.Quote:
Originally Posted by crzyman
This is true. The main goal is something with the 180's for longer shots.Quote:
Originally Posted by Spanners
I will still keep my current loads as they shoot bloody well. But I did remove some of the fun by buying a rifle with load development done :( I am a tinkerer by nature!
I start at ADI max, but thats another story.
So, you have a accurate load with good speed and a good bullet....... and you want to burn up your barrel for what??
Buy another rifle and tinker with it is my advice
Im running 70.0g 2225 in my 7mmRemMag for just over 3K. Tried N560 and got crazy speeds like 3200fps with 72g and was pretty accurate but had some nasty fire cracking in the throat. Was advised (rightly or wrongly) 2225 was not so savage. Have lost speed but accurate like a dart @3K and 2225. Did not try anything else to chicken to tinker what is not broke. Using only 162 A-Max
Id stay with the amax and the load you have now. How much are you going to gain by going to a 180?
My load has got 65grain RE22 and getting 3125 with the 162 amax according to the jbm drop. and I didnt get pressure signs until 68 grains
I'm using 73gr 2225 which gives just on 3k with the amaxes. I wouldnt change, 223 is a good caliber to play with if your into tinkering
Whatever the 'net' says about change in length of a rifle round not comparing to a pistol as far as pressure, is bollox from my opinion.
When I put a Wyatts box in my RUM and lengthening the bomb, I had to step my load up by over 4 grs to get back to where I was before hand.
Maybe shortening, does bugger all but longer makes a huge difference from my experience.
Was that before, during or after you rebarreled it ?Quote:
Originally Posted by Spanners
Either 22217 or 2225 work well with the 162gr really depend on what your rifle really likes the best at the end of the day.
Grain for grain I was getting higher velocities from 2217 in my 300 winmag, and the 2225 was super, super compressed, so fat that the bullet pushed itself out again, just a bit.
However, if you can seat wayyyyyy out there, the 2225 may well provide an advantage, but I am a bit fan of the 2217, KG uses it right down to .260 and up to 338 edge, and I intend to use it in my 6.5x284 as well.
Its really nice to only have one type of powder, so much easier, and 50 fps is neither here nor there for me
Chris