The 6mm rem has really caught my attention lately and can't get it out of my mind. I've read that a lot of people prefer the long action, but that would require a build. If I go short action, there are a few factory offerings, but nothing in a long action. The intention is purely range work and maybe a little coyote action. Will be a fast twist for the 107's and the 87gr? v-max. Will I run into problems with the long vld type bullets in a short action? I don't mind single loading the long match bullets, but the v-maxes must load from mag.

I got to play with one in a short action, before I did the plunge and built one on a long action...

The long action definitely allows you to get more velocity out of the 6mm Rem Case by seating the bullets way out there...I think they list 75 grain HPs in a short action to about 3400 fps.. seated out to 80mm OAL... I can get 3750 fps with a 75 grain HP Hornady......

I seat Berger 115 grain Match bullets out to magazine length.. and 46 grains of RL 19 launches them at 3250 fps... I can push it more, but accuracy is so sweet at that load, why bother....

If I only had a short action, then I'd just go with a 243 Ackley if you wanted max velocity... or a 6mm/284... but I'd take the 6mm Remington on a long action any day over either one of those....even over a 6/06 or a 240 weatherby....

The 6mm Remington will equal either of the last two on a long action, any day, with less powder and less barrel wear....

Just my experiences... got my third on in the mill as we speak....31 inch bull barrel... waiting for the stock to show up now....

cheers
seafire

the short action will cramp the style of the 7 MM Mauser family. Use the long action.

You hit this one hard.....single loading deletes the long action advantage.....you can load long seated bullets in a short action by loading single shot....if this is what you wish to do then go for it...the short action will work fine.

When I shoot prairie dogs I always shoot single shot. That said one can also build a .25-06 on a short action.

Get a 1-9" twist and you should be shooting the 107 bullets fine. V-max's might even run thru the magazine for you.

If you look at the reloading manuals most OAL is around 2.825, reason for that is the magazine length on a rem is appr. 2.849 to 2.840 so when you get to wanting to use LVD type bullets you will use up some case capacity or have a pretty compressed load. I think most guys seat the LVD out about .080 past the case mouth or longer most of those type rifles are throated for those type bullets you add that to the 6rem case OAL and your around 3.000 total OAL. I've got one 6mmrem on a short action my other two are on long action as is the 6x284.
You can buy a Wyatt extended box magazine for the rem so you can get the bullet out further, I've got one now being put together for a 284 on a rem short action. Those magazine run around $60 plus need a gunsmith to install. Alot of options now. Well good luck.

quote:

the short action will cramp the style of the 7 MM Mauser family. Use the long action.

I agree. I like to use a long action for the 7x57 family. Setting the throat so that I can set the bullet out as long as possible giving me as much net capacity as I can get. While a short action can work you have to set the bullet deep using space that could hold powder.

Thanks for confirming my thoughts. Guess I'll start looking for that long action donor. This begs the question, why is Remington putting it in a short action?

Just as a thought, the short action in the Montana Rifleman 1999 action will go a full 3.125 for loaded length. It appears thier short action was designed for the 7mm Mauser family and smaller.

What are you going to do with your 6mm? Shoot 123 Spitzer Boat Tails made for the old Lee Navy?

6mm bullets aren't all that long. I just loaded some 100 grain SBT's in my Sako L579 (magazine about 2.8"). In order to fit the magazine, the bases are just about even with the juncture of the neck and shoulder. Where else would you want them?

If you are shooting primarily varmint bullets like 70's and 80's, then they can be seated so that there is nearly half of the neck vacant. In fact, with an 85 grain SBT, I found that you wouldn't want to seat it any further out than the magazine allows, since you would have such a small purchase of the neck on the bullet if seated any shallower.

If you were using the same 57mm case for a 7mm with 175 bullets or an 8mm with 200's, then yes, a long action would be needed. But you're just fine in a medium action with a 6mm, most especially with varmint weight bullets.

I guessing a long barrel would probably be suggested as well. What barrel length are you guys using on the 6mm set up for the heavy vld type bullets.

I get fine velocity out of a 24 inch barrel on my Rem 700... However, I have not had the chance to chronograph the 31 inch barreled one yet... since it is waiting for a stock on it...

I shoot 115 Grain Bergers at 3250 fps in a 24 inch barrel...

cheers
seafire

I was thinking about getting one of those stevens 200 in a long action something. Then getting a 28 inch pacnor to screw onto it. I have a short action I could use, but taking the advice here, I'll wait until I come across a long action.

I guess my experience is unique, but I have a Rem 600 action built into a 6mm AI with a slow twist barrel for coyote. The heaviest bullet I use is an 87 grainer, and it loads through the magazine and touches the lands without intruding overly far into the powder space. And the velocity is where it should be for this cartridge and 24" barrel.

The reamer was basically minimum SAAMI spec, except .004 short so it was a crush fit for fireforming. So, just a regular old reamer without any funny throating lengths.

Good luck with your project.

Doug

quote:

Originally posted by dougk:
I guess my experience is unique, but I have a Rem 600 action built into a 6mm AI with a slow twist barrel for coyote. The heaviest bullet I use is an 87 grainer, and it loads through the magazine and touches the lands without intruding overly far into the powder space. And the velocity is where it should be for this cartridge and 24" barrel.

The reamer was basically minimum SAAMI spec, except .004 short so it was a crush fit for fireforming. So, just a regular old reamer without any funny throating lengths.

Good luck with your project.

Doug

If we all used Hornady 87gr bullets wouldn't need a long action. That is the bullet I'm also going to use in my 1/10 twist 6remAI. The Hornady 87gr HP is .978 long and the average case neck is .331/.341 long so you seat about 1/3 if the bullet and no problem keeping OAL. When or if you decided to use a 95gr BT Nosler bullet has a lenght of 1.125 the ogive would change seating depth as compare to a 87gr bullet meaning the bullet would have to be seated out further but the magazine may limit that, Sierra 107gr has a bullet lenght of 1.218.
Myself I don't like the idea of seating half the bullet in the case. One of my first customs was a 6rem with a 1/12 twist used those 80gr Rem match bullets everything worked in the magazine bullet length was .825. In the last 15yrs bullet design have changed alot if you look at the Scirocco and Interbond bullets they almost look like and LVD type. Problem today is have too many 6mm bullets over 1" for the 6rem on a rem short action. I don't want you to think I was picking an arguement with you but trying to explain why I went to a long action 6mmrem if any of it makes sence. Well good luck.

Magazine length in the 700 SA was the reason I went .243 AI vs 6mm AI . Even then the Berger VLD's won't fit . 87 V Max is OK but I can't get it to shoot .Going to try the 90 gn Berger BT as it has a BC of .410 .
Currently messing with the 105 A Max which will fit my magazine . Not sure about accuracy yet .