a ole' Varminter project

[badshotlal]

Good day,

Have an '03 (way over 800,000), built in the early '50s, and chambered for the 22-250 Varminter. She's way overdue for restoration, and want to have something similar to, or in fact chamberd for, the 22-6MM.
Am not up on all the newest short magnum cases, and getting long in tooth, memory "aint't what it used to was"
Is there a short magnum case with similar volume to the 6MM? If so, can't imagine someone hasn't put together something like I'm looking for .
Finally, whose 6MM brass is the most consistent? Considered necking down some Lapua or Norma 6.5x55 brass, but the cost would be enormous :'(
Just occured to me -- is there a site where I could find case capacity of the new genre short hot-thots :-[
Thanks for reading this. Have a great week-end (or what's left ;D

God Bless

badshotlal

 

[Kenny474]

I would suggest looking at the 22BR or one of the BR Improved rounds. I was looking for a coyote/varmint round and had a lot of suggestions to go in this direction. After looking at the different rounds a bit, I have decided to try a 22BR. It will duplicate 22-250 velocity and give longer barrel life and great accuracy. The Improved rounds will still give great accuracy, but improve velocity a bit.

If you really want a smokin hot speed round, and don't mind short barrel life, maybe a .22-.284 would suit your fancy? Lapua makes 6.5-284 brass that could be easily necked down, and I don't think you could find another round that will beat it by much in velocity. I have a 6-284, and it will push 60gr bullets to nearly 3750fps in a 24" barrel. Even a .22-08 would be a real screamer, and Lapua now makes small primer .308 brass.

I don't think a short mag in .22 cal would really be worth all the extra powder burned. They are a bit overbore at 7mm, and going to .223 would only make things worse. I would think barrel life would be very short to say the least. And the WSSM rounds are plagued by poor quality brass, as I found out when I gained interest and started asking questions.

A 22-08, 22-08AI or 22-284 would be serious screamer, and Lapua brass is available for both rounds. The 22BR or 22BR Improved would be good options as well with great accuracy, good barrel life, and reasonably high velocity as well. I don't really think you could go wrong with anything along these lines, with barrel life being a major difference in the larger rounds.

The 7mmWSM has 5.02cc useful capacity, the 270 and 300wsm 4.91cc, the 300RSAUM 4.73cc, the 7mm RSAUM 4.67cc, the .284 3.97cc, 6mm Rem 3.48cc, and the .308 3.43cc. The 6BR has 2.18cc.

Hope the capacity helps, sorry I don't have it in grains.

 

[oldroper]

Good day,

Have an '03 (way over 800,000), built in the early '50s, and chambered for the 22-250 Varminter. She's way overdue for restoration, and want to have something similar to, or in fact chamberd for, the 22-6MM.
Am not up on all the newest short magnum cases, and getting long in tooth, memory "aint't what it used to was"
Is there a short magnum case with similar volume to the 6MM? If so, can't imagine someone hasn't put together something like I'm looking for .
Finally, whose 6MM brass is the most consistent? Considered necking down some Lapua or Norma 6.5x55 brass, but the cost would be enormous :'(
Just occured to me -- is there a site where I could find case capacity of the new genre short hot-thots :-[
Thanks for reading this. Have a great week-end (or what's left ;D

God Bless

badshotlal

One problem is that you more than likely have to buy the reamer/gauges if looking at the WSSM for a wildcat might be a good idea to line up a gunsmith and see what reamers he has. Also be a good idea to come up with a velocity range you want to get with what bullet as custom dies can be expensive.

The good old 220 Swift and 22-250AI are pretty good cases and now that Laupa is making 22-250 brass.

 

[357Mag]

Varminter project

Badshot -

Might I suggest a wildcat hyper-velocity .224" calibre wildcat that I developed ?

It is the .35 Rem case necked down to .224" calibre.

Case capacity runs in the 41-42.6 range, dependant on bullet/powder/primer chosen.

I shot this wildcat 20+yr as a 24" 1-14 on groundhogs, and another 4+yr as a
28" 1-8. In this guise, .22-35 can put 3,500fps on a 75 "A"-Max, which is good for ome 450ft lbs out to 966yd ( my math ). This is good enough to be a valid
1,000yd groundhog rig.

The wildcat design was personnaly critiqued by P.O. Ackley, via letters between us.

I have case form & loading dies, load data, fire formed brass etc for sale; along w/
the 24" 1-14 take-off barrel ( can be used for fire forming ).

Case capacity is less than a .22-243 or .22-6mm, but those are only their most efficient w/ the heviest .224" cal bullets. With the lighter .224" bullets, thier barrel life typically suffers. High vel or longer barrel life..... take your pic.
.22-35 does what it does w/o having to use so much ( excess ) powder, to make up to 1,000yd varmint kills ( groundhog ) a real possibility.

.22-35 works w/ a .308 bolt face.

I use R-P .35 Rem brass, exclusively. Heck, they designed the .35 case/cartidge.

If interested in additional data, please feel free to contactg.

With regards,
357Mag