How much H4350 in a 284 Imp?

[holstil]

Can anybody tell me how much H4350 I could expect to safely burn behind a 180 bullet? (ball park)
I have a half decent load at 51.5 now, but I want to load up for more testing. I hate to pull bullets apart.

Jim

 

[Steve Blair]

I have only used H4350 behind Berger 175 XLDs in a .284 Shehane. My load was 53.6 but that may be too much in your barrel with 180s. I would increment by .4 grains from where you are in 3-shot groups. When you see pressure, go back to the last level and take that as maximum. Be careful. [br]
My match load uses H4831 SC and it has given me excellent results. Consider trying that as well.

 

[Sray53TXTN]

In my .284 was using 51-52.5gr H4350 with Berger 175 & 180gr. My best node was 2825-2850 fps.
Not sure how much more the Imp version would be.

 

[holstil]

Hey thanks for the input.

My last two barrels did well with the 4831sc., this one just OK.
I'm using short fat barrels in LV and this powder has given me about the same accuracy but faster speed in the shorter barrels.

Jim

 

[camac]

A lot of barrels like the 51-52 grain load and around 2820-2840 fps. To get to the next node you need to go up a couple of grains as suggested by sleepygator probably somehwhere around 53.5-54 if yours likes 51.5 BUT beware this could be very hot for some rifles. I have 6 * 284 Shehane barrels and only 2 can safely take it.