KEYHOLE

[DANNY-L]

I loaded a few 75gr A-Max for my Rem 700 22-250 and I came out with the most perfect broad side hit of the bullet. My brass is Rem trimmed to length fl sized,cci 200,imr 4895 the loads were 32gr,32.5gr,33gr.my o.a.l is by the book at 2.490 this is under max load (hornady#7) will this bullet work any advice on this will be appreciated.

[stimpylu32]

Danny-L

I don't think your 250 will ever be able to stablize a bullet that long & heavy , most 22/250s run a 1 in 14 twist , for that bullet you'll need a 1 in 10 or even a 1 in 9 twist .

Drop down to a 62g or even a 55g bullet and the problem will go away . 

stimpy

[OR-E-Gun Bill]

Stimpy got it.
If you look closely at your Hornady Manual there is a note, in smaller print, under the 22-250 - 75 grain bullets data that states:
The 75 grain A-MAX and Boat Tail Hollow Point bullets will not stabalize in 1-10" and slower twist barrels.


Bill

[shot1]

If you have a stock Rem 700 22-250 it has a 14" twist and will not stablize anything much over a 60 gr bullet. You need to drop back to 50 or 55 gr bullets. To shoot the 75 gr you do need a 9" and an 8" twist would be better. A case full of Varget and the 50 gr shoot really fast and well.

[DANNY-L]

Thanks all,it is what I thought it may be but I had some and a little time so what to heck and your right on the 50-55gr they shoot perfect groups.

[Land_Owner]

Key Hole.  OK.  Wrong rate of twist.  But how did they group?  I mean, dead is dead - right?

[DANNY-L]

4" at 100yds,they would hurt!

[Land_Owner]

Bet that's the truth!  Growing up I heard the first M-16's wouldn't stabilize the bullets.  Grotesque injuries were being reported on the "back channels" about shootings in the ankle coming out of the shoulder and tearing everything up in between.

[Castaway]

Early M-16 bullets stabilized fine in flight but when hitting flesh would start to tumble.  Trying to group a bullet that keyholes is like trying to be precise when throwing a knuckle ball.  It's slower and will go all over the place and not penetrate worth a hoot.

[Land_Owner]

'suppose it "stings" WORSE if it is keyholeing when it hits?  Just a mental itch...rhetorical question.