Short Barrel (20”) 300WSM Question

[Ltsheets]

Thanks everyone. For reference, this will be on a M70 WSM action so the mag box is 3.1" I believe So that should help with the longer bullets.

 

[Ltsheets]

20" 300 WSM, defiance rebel XM with Bartlein #3 barrel,
suppressed with TBAC Ultra 7 30.
Haven't shot any handloads but the Norma factory 180 bondstrike was 2,910 fps
So I'd think 2,800 with a 190 would be possible.

How do you like those? I bought a couple boxes recently.

 

[cohunt]

How do you like those? I bought a couple boxes recently.

The bondstrike aren't that accurate in my win xpr renegade lr, I'd say 1.75 moa ES is around 80-90 fps

 

[rm76]

I have a 20-in 300wsm built on a Surgeon WSM round action with a Wyatt's magazine box. I'm pushing a 168 TSX at a modest 2920 fps. No suppressor. Really like this combo all the way around but admittedly have not tackled heavy game or long range yet.

 

[Painless300]

What powder are most of you running in your 20"-22" barrels. Would it be beneficial to go to a little faster during powder for 200g+ projectiles?

 

[rm76]

I'm running H4895

 

[raider1v1]

is there a way to tell if its TOO short?

 

[Elk Hunter 338]

is there a way to tell if its TOO short?

yeah your ES will go through the roof and you'll need to switch too way faster powder

 

[raider1v1]

yeah your ES will go through the roof and you'll need to switch too way faster powder

Is 20" about the shortest you can go w/ long action magnum, or is 22" considered worth the extra length? i know its somewhat of a generic question.

 

[Elk Hunter 338]

Is 20" about the shortest you can go w/ long action magnum, or is 22" considered worth the extra length? i know its somewhat of a generic question.

USA man you can go as short as 16.5 and full send it ha ha .. most suppressors though are not created equal and i would dare too say that 90% of the "Magnum" rated cans wont handle the pressures of a 16.5" 300 WSM or win mag! hell most of them barely do it on a 26" barrel

on any given cartridge basically rule of thumb is 25-40 fps from what I've seen per inch of barrel! given specs are all the same from start too finish

 

[raider1v1]

well can do and should do i think are separate in this case. right?

i have a hybrid and a 30p-1 that are 'supposed' to be rated for that. but i havent ever tested it.

 

[schmi015]

is there a way to tell if its TOO short?

Yea... a giant fireball out of your muzzle.

 

[Painless300]

I just got a 22" 300WSM barrel and I have some N560 with 215g. Hopefully I'll get enough speed before pressure shows up. Going to start load work up in next few weeks.

 

[308ghost]

Has anyone on here had a short barrel 300wsm? I'm rebarreling a rifle and want to go with a 20-22" barrel. I want to shoot 190vlds or 200eldx and get 2800fps or better. Do you think this is feasible? Thanks.

I cut my tikka barrel to 21 inches and shoot with my harvester. I have a 190 ABLR going 2905. And a 185 Berger Classic Hunter going 2998. This thing is very accurate.