help me build a lightweight sub-.275 cal groundhog detonator.

I have shot one or two chucks in my time well more'n likely a few thousand;)
For getting them dead and out of the field at the ranges most rifles are capable of doing acurately the .22/250's and such velocity cartriges are tops and yes they have plenty of thump for making body parts go flying..223 and .222 make exellent walking rifles. Cool thing is you can see the hit through the scope most times since there is less recoil. More vaporization obviously come from heavier and harder hitting bullets provided they are designed as vaporizers. Once up into the bigger bores the bullets are less apt to be intended to vaporize and are more ment for Deer and such. I like .243's for this since the bullets in the lighter weight are just catered to vaporizing chucks. Start getting into varmint type bullets in calibers much bigger and you start loosing BC and what's the point there. Rim fires wound many chucks!
Here's a pictorial comparison from some different calibers.
.223! How dead is dead;)
2it7bt.jpg

287do42.jpg

2iihahi.jpg

.222 new in 1959 and stiil lots of chuck rifle;)
2hscbnn.jpg

x42jxl.jpg

Lets step up to the .243's. More thump and more vapor effect as a result. .243's will give you air time while the .224's even the higher velocitiy ones are hard pressed to lift them more than a foot or so. Most of these pics atest to the explosive nature of the 58gr VMax. Notice an increase in carnage ;)
2002nmd.jpg

25jw51y.jpg

Half grown pup at 400yrds
jhy4pt.jpg

Now lets step 'er up a bit to a bigger caliber for comparison. I have shot many chucks with a .30 but that was before my digital camersa days so I have no pics for comparison so here is a few from the might Old Mother herself the .375H&H for comparison. My beloved "Sweet Melisa" is with out a doubt a nasty chuck rifle. Loads are 87.5 gr IMR 4350 behind a 235 Speer Hotcore. Nasty! Some of the chucks I shot went high enough in the air I didn't need to see them through the scope:eek:
1zfq14x.jpg

29w4rab.jpg

2yv2pds.jpg

Hope this helps with the decission:D
 
I saw a cz in 6.5x55 in Calgary the other day. I liked it very much.:) But I didn't buy it. :( 6.5 swede loaded with 100gr v-max at about 3000fps would be a fine varmint load.;)
 
ok, so its a .243 or .270. just going to pick up a Stevens. I have a nice long tube Leupold Vari-X III 6.5-20x40mm waiting to go on it so the scope will be worth 3x as much as the rifle, heh.

so
.243, 1:9.25 twist
or
.270, 1:10 twist

Speer 90 grain TNT hollowpoints in the 270 @ 3600 FPS is 400 FPS faster than a .243 with the same bullet. im leaning a bit towards the .270.

my main concern is will the 1:10 twist work OK. i THINK it will but im not sure.
 
Speer 90 grain TNT hollowpoints in the 270 @ 3600 FPS is 400 FPS faster than a .243 with the same bullet. im leaning a bit towards the .270.


wow, words escape me....

homework. do some.

some topics:

sectional density
bore diameter vs. muzzle velocity with simmilar bullet weights
ammo cost.


get a .243 and go kill some dirt pigs. then come to BC and kill some Marmots with Amphibious & I.
 
i meant the same weight bullet. i know that the .243 is a narrower bullet, give me a bit of credit :)

i do need to look up the sectional density & bore diameter vs. muzzle velocity with similar weight bullets though. but this is why im here asking which rifle to get :sniper:

if you want to help me out with a brief Coles Notes version im all ears :)
 
Awesome pics grnhawg!! :D
I can't see why MBP doesn't like the .204. you can load up to a 50gr(?) bullet now that they are available. What varmints are you wanting to take other than the ontario ground hog?
Gawd, a Stevens and some cheap camo paint for the fugly stock and your good to go.
My best was an Ontario dirthog (when I lived in Ottawa) with a 12 ga. from about 12 inches. I was hiding in a bushy fenceline in a field and one came out of his hole about 3 feet away and facing the other way. He stood up on his hind legs and after I looked skyward and said "thank you" I eased the muzzle about 12 inches from his back and squeezed...amazing how far a hog will go before he touches the ground after being drilled by #4 shot :dancingbanana:
Oh, btw....heres some .204 results,
http://s162.photobucket.com/albums/t269/Rick65Cat/Gun Stuff/?action=view&current=pdog8.jpg
http://s162.photobucket.com/albums/t269/Rick65Cat/Gun Stuff/?action=view&current=pdog3.jpg
http://s162.photobucket.com/albums/t269/Rick65Cat/Gun Stuff/?action=view&current=pdog2.jpg
Can't wait til spring :sniper:
 
the main reason im considering the .270 is the long action, .30-06 bolt head Stevens. add a .25-06 barrel to the mix and i have two varmint guns to play with. decisions, decisions. if i am reloading anyway (which i should be by summer), the .25-06 ammo cost is not really a factor.

is there any factory ammo with something like the 58gr VMax for the .243? all i usually see thats suitable for varmints are the Federal VShok 85gr Sierra BTHPs.
 
Ruger makes an excellent markII in 25-06. I will have one again shortly... (selling my Mark I to buy a Sako was a mistake.)


Suffice to say, you can tell bartell hasnt shot a 25-06 on game/vermin, and the 243 is his new favourite round so you know what his answer will be.
that 100 foot lbs on paper is sure as #### different on the skin of a groundhog.
The 25-06 with a 75 gr Vmax (not an 85 Chilly)
will put a dirtpig about as high as you can without setting a charge under its ass. do you need a 25-06 the troll anphib asks? no, but its sure fun to watch em explode. Given the choice of the two, the 25-06 came out more than the 243 when I had em both for its results on target. there isnt much crawling back to the hole from either, but the 25-06 just makes a bigger mess.
Buy all three... I did :)
 
Ruger makes an excellent markII in 25-06. I will have one again shortly... (selling my Mark I to buy a Sako was a mistake.)


Suffice to say, you can tell bartell hasnt shot a 25-06 on game/vermin, and the 243 is his new favourite round so you know what his answer will be.
that 100 foot lbs on paper is sure as s**t different on the skin of a groundhog.
The 25-06 with a 75 gr Vmax (not an 85 Chilly)
will put a dirtpig about as high as you can without setting a charge under its ass. do you need a 25-06 the troll anphib asks? no, but its sure fun to watch em explode. Given the choice of the two, the 25-06 came out more than the 243 when I had em both for its results on target. there isnt much crawling back to the hole from either, but the 25-06 just makes a bigger mess.
Buy all three... I did :)

Well stated. The difference between the 25-06 and 6mms has to be seen to be believed (apparently)
 
now who's the troll. that was uncalled for.

I'd recomend maybe to go and finda large long urine tube to wrap your lips around


You showing up most places with nothing to add is what's uncalled for...

Go cry to mommy, and maybe she'll let you play with your 450 again...
 
actually I sold my 243. I have rethought my idea of a groundhog gun and I would suggest a 270 STW with a 110 gr vmax. It hits harder than a 25-06!
 
I have varmint hunted a fair bit with the .22-250,the.223,the.243 and the.270. In all honesty you would be hard pressed to cull any out at 250 yards as inferior,the .223 being the only marginal one.Comparing recoil,bullet drop and accuracy is tough between these calibers.if I could only own 1 gun for everything it would be a .270 Win.
 
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is there any factory ammo with something like the 58gr VMax for the .243? all i usually see thats suitable for varmints are the Federal VShok 85gr Sierra BTHPs.

Hornady loads the 58 gr Vmax & 75 gr hollow point. Federal and winchester both load 55 gr ballistic tips. and federal loads 70 gr nosler bt

all these companies have websites :)
 
Are we seriously advocating a .25-06 for a groundhog rifle??? Last I checked, the .243 and 6mm Remington were still overkill for coyote and anything under (I speak for the .243 which I've used for gophers and yotes). If there's somebody here than can tell me the difference between a ~4,000fps 55gr 6mm hit on a gopher and a ~3,500fps 75gr .25 hit I'd like to hear it... 99% of folks would say it's going to look just the same, and loaded right, the .243's got the longer reach and burns less powder. Plus, it sounds like manpig's quite the new hand at the shooting game from his posts and is not a reloader, he should stick with the .243 for the plethora of varmint loads for it.

This all just seems a little nuts to me... my ideal gopher/coyote gun's a .221 Fireball :confused: , and I end up using .223 just by virtue of how common it is.
 
A stevens in 223 with 40gr white box Win ammo.

This is a walkabout rifle isn't it? If so, you are not likely to be more then 300yds away or can move closer. Will be shooting from field positions so heavy recoiling means you miss your own show.

That seems like a big waste of horsepower.

Besides, you already have 223 stuff so stuffing 40gr Amax for max puff is a no brainer.

Jerry
 
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