20in bbl 300wsm
- Thread starter twogun
- Start date
BigUglyMan
CGN Ultra frequent flyer
- Location
- New Scotland
Nope. You'd have to shoot it to find out.
I think a 20" WSM would be too short, IMHO.
I think a 20" WSM would be too short, IMHO.
Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
SLOWER.
Jerry
Jerry
20 in
every body tells me that 20 in is plenty for shooting a 308 at 600 but will the 300 wsm still perform out to 600 with a 20 in bbl??-I will probably just use this for shooting a deer or bear at 40 yards --or a hundred at the most --but we have a target club that shoots regularly at 600 and I may want to use it there as well???
every body tells me that 20 in is plenty for shooting a 308 at 600 but will the 300 wsm still perform out to 600 with a 20 in bbl??-I will probably just use this for shooting a deer or bear at 40 yards --or a hundred at the most --but we have a target club that shoots regularly at 600 and I may want to use it there as well???
It would be plenty fast for 600 yards. When my kids were small they shot back to 600 yards using a 20" target rifle with very down loaded ammo. I think they used 36 gr of 4895.
But it was out of gas beyond 600.
But your muzzle blast would be fierce for hunting. I mean painful.
But it was out of gas beyond 600.
But your muzzle blast would be fierce for hunting. I mean painful.
Frozen Snake
Regular
- Location
- 49°29'28" N 119°35'19" W
A 300 wsm with a 20" pipe? This is just a guess, but I think it would be the equivalent of a 30-06 performance wise. I would stick with a longer barrel. I read somewhere that a 24" pipe vs a 26" pipe is 40 FPS slower. If the math is correct then a 20" pipe is not efficient enough to get the job done for longer distance, if your concern is down range energy.
.308's still work well with the 20" pipes due to less case capacity which means there isn't as much to lose to begin with. A 300WSM uses a fair bit more powder so you are gong to lose out on more and gain in muzzle blast. Will it work? Yes it will be just fine, but I think you will be losing out on the potential of the cartridge.
barrel length has diddley-squat to do with how accurate your rifle will shoot. It will affect velocity to a certain degree and it will affect noise, bit other than that, its shooting accuracy is a byproduct of the barrel's inherent accuracy. I'd be willing to bet if you had a factory "tack driver", the next one won't be and you'll blame barrel length for the problem.... it aint so. Very few facory barrels are capable of better than 1MOA accuracy - so what? It's what they were designed for. You'd have to be 600 yard away from a Moose for that to be a factor, and its lungs measure close to 3MOA at 600 anyway.
Shoot it, practice with it and enjoy it. If you truly need/want ultimate accuracy, build a target rifle where all that crap makes a difference. Otherwise, just have fun.
Shoot it, practice with it and enjoy it. If you truly need/want ultimate accuracy, build a target rifle where all that crap makes a difference. Otherwise, just have fun.
- Location
- Somewhere on the Hudson Bay Coast
Choosing as heavy a bullet as your rifle will shoot accurately will be an advantage in the short rifle. A heavy bullet requires a smaller powder charge to attain the maximum velocity; this reduces muzzle blast. The heavy bullet has a smaller loss in velocity compared to what you would expect from a longer barrel, than does the lighter bullet. The heavy bullet gives up down range velocity more grudgingly and is less effected by wind compared to a light bullet.
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