22-250 XP100R powder recommendations

[Mulligan]

I have an older 100R in 22-250, plan to use 40 and 50 gr bullets for rock chucks.
With that shorter barrel, what powders should I consider?
I assume something in the H4895-N-135 burn range??????
Thanks
CW

 

[AWS]

I use H-380, 4320 in mine and am looking to pick up some 760.

 

[Evan]

If youve got IMR-4064, 35.2gns was magic with 50gn vmax in 4 different barrels.

 

[17VLD]

In rifles all mine loved H414,ww760 is virtually the same thing so I'd be tempted to try it.At the Cold Turkey shoot in Wyoming (pistol and revolvers only)a lot of us would get on the subject of powder and what worked and believe it or not, going against conventional wisdom. Slower than normally used powders actually worked out very well in small caliber and pistol length barrels. I actually was using H4350 in my 17ppc at 1000 yards and hitting paper in 28mph gusts. I envy you going after rockchucks with a pistol, I have shot a few in Gunnison with my 617 and 20 Tac and truly miss hunting in Colorado. I bet you have some N140 that might just surprise you. Will definitely be curious to see how you do.
Matt

 

[Mulligan]

In rifles all mine loved H414,ww760 is virtually the same thing so I'd be tempted to try it.At the Cold Turkey shoot in Wyoming (pistol and revolvers only)a lot of us would get on the subject of powder and what worked and believe it or not, going against conventional wisdom. Slower than normally used powders actually worked out very well in small caliber and pistol length barrels. I actually was using H4350 in my 17ppc at 1000 yards and hitting paper in 28mph gusts. I envy you going after rockchucks with a pistol, I have shot a few in Gunnison with my 617 and 20 Tac and truly miss hunting in Colorado. I bet you have some N140 that might just surprise you. Will definitely be curious to see how you do.
Matt

Thank you.
I have N140 and N150, and of course H4350

I mostly hunt rock chucks in ID. Colorado has a limit of 2 each day, And......... a possession limit of 4???????
The ski towns and metro areas are full of dingle berries, nuff said.

 

[Mulligan]

If youve got IMR-4064, 35.2gns was magic with 50gn vmax in 4 different barrels.

I have not had any 4064 in a long while. Maybe it is time.
Thanks
CW

edit
I wonder if VarGet will work? It is close to 4064 isn't it?

CW

 

[Evan]

I have not had any 4064 in a long while. Maybe it is time.
Thanks
CW

edit
I wonder if VarGet will work? It is close to 4064 isn't it?

CW

This was maybe 10 years ago now before I moved to the 22BR, but I recall 4064 being better. I think 4064 has been basically extinct for a few years now. Just to add to my previous comment, it was Bartlein and Kreiger barrels, 18” long - a little longer than standard TC or XP barrels.

 

[Ackman]

Never shot 40's in the 22-250 case, but tons of 50 ballistic tips. My only standard 22-250 is a factory Savage sporter. In that case, both standard and AI, I've settled on reloder 15 to work very well. This is from years ago with that rifle. First group at 75yds, came back the next day, same conditions, and shot at 100yds. I'm satisfied for a factory sporter. That powder has worked well for me.

 

[Ackman]

Thank you.
I have N140 and N150, and of course H4350

I mostly hunt rock chucks in ID. Colorado has a limit of 2 each day, And......... a possession limit of 4???????
The ski towns and metro areas are full of dingle berries, nuff said.

So you're expected to "possess" 4 gutpiles from halfway up a hill, that have fallen between the rocks? And how can you possess 4 with a limit of 2? Are those Colorado lawmakers clueless? We know the answer to that.

 

[TC260]

In rifles all mine loved H414,ww760 is virtually the same thing so I'd be tempted to try it.At the Cold Turkey shoot in Wyoming (pistol and revolvers only)a lot of us would get on the subject of powder and what worked and believe it or not, going against conventional wisdom. Slower than normally used powders actually worked out very well in small caliber and pistol length barrels.

You're absolutely right and the fact that that has become "conventional wisdom" on the internet drives me bananas. I've shot tons of rifle cartridges in pistol length barrels and never once had even a hint of a problem using the slowest powders for a given cartridge. Over and over I found the same powders that tend to perform best in rifles also perform best pistols.

 

[WV Hitman]

I have 2 .22-250 XP-100s. I've taken 2553 groundhogs, over a dozen deer, around 1500 rockchucks with them. I've only used 50 & 40 gr. BTs in them. My powder for over 40 years is AA2015. Both guns still shoot 3/8" each year

 

[RegionRat]

I agree with the others, that sometimes a short 22 bbl will be magical with a powder that "it isn't supposed to".

I watched a TC with a 14" bbl running H414 shoot in the ones too many times.

It wasn't mine, but you could literally pick off flies that landed on the target at 200 yards with regularity.

The only thing done to that factory bbl, was to re-cut the crown to 11 degrees and it tuned into magic.

It would also like 3031. Go figure.

Considering we were using LC brass and Sierra bullets, it shot amazing. It violated much of the common mantra about percent burned and exit pressure, yet the bullets flew straight.

Once again, when it comes to getting down into the noise, only a test will tell. Good Luck and in for the range reports!