New Rifle Build....need help with magazine selection.

[BowChamp]

I'm having a Rem. 700 ADL short action rebarreled to 6.5 Creedmoor. I'm going to drop it into a MDT ACC Premier Chassis. This rifle will be used for 1000yd. benchrest and some prone shooting. No hunting or lugging through the woods.

This is where I need help.......My understanding is I will be able to use AICS type magazines. I have no experience with or knowledge on this type of magazine.

Who makes a good magazine I will not have trouble with?

Should I get metal or polymer?

Is there a magazine rounds capacity that works better than others?

Any advice would be greatly appreciated!!

Thanks!!

 

[Steve_O]

I been using the MDT 10 Round no binder mags for the last couple of years with no issues. 6.5 Creedmoor in a MPA Matrix chassis.

 

[BowChamp]

I been using the MDT 10 Round no binder mags for the last couple of years with no issues. 6.5 Creedmoor in a MPA Matrix chassis.

What is a binder? Are you using metal or plastic mags?

Thanks!

 

[Steve_O]

What is a binder? Are you using metal or plastic mags?

Thanks!

 

[Steve_O]

Iam using metal mags, using no binder mags so I can run a longer over all length.

 

[BowChamp]

Iam using metal mags, using no binder mags so I can run a longer over all length.

Got it....thanks for the video.

 

[Curmudgeon]

Could I get some background please? Is your 1000 yard benchrest build for competition? Who is shooting a 6.5 Creedmoor and winning? Is the prone shooting for NRA mid or long range? These matches require single loads so what is the advantage of a magazine? This sounds like a build better suited to Precision Rifle. Building your rifle sounds like fun just curious about use. Thanks

 

[284winner]

If your not slinging the rifle or worrying about accidentally bumping the mag release lever when walking in the woods with it, most bottom metals will work fine. Accurate mags (no binder) are what I use. You won't want binder plates if your shooting 1000 yard with the 6.5CM in the event you shoot 140-150 grain bullets.

 

[BowChamp]

Could I get some background please? Is your 1000 yard benchrest build for competition? Who is shooting a 6.5 Creedmoor and winning? Is the prone shooting for NRA mid or long range? These matches require single loads so what is the advantage of a magazine? This sounds like a build better suited to Precision Rifle. Building your rifle sounds like fun just curious about use. Thanks

Yes Sir........This build is for my enjoyment, only competition will be against my shooting buddy, me and anyone else that's at the bench while we're shooting.

The reason I chose 6.5 Creedmoor was nothing more than convenience. I have an old Rem 700 SA in the closet, a Chassis not being used and my son-in-law already has reloading dies for his hunting rifle. My 6.5 Grendel gas gun did very good for me out to about 700yds. The prize will be consistently hitting a 5 inch plate at 1050 yds.

Shooting prone is only because there are carpeted pads at the range I'm a member of now, thought I might give it a try. With a mag I could feed both ways, from mag or single loading. That and my chassis is set up for use of mags......thought why not. Single loading would simplify things for sure.

What started all of this is we joined a range that has 1050 yds available to the members. My first ever shooting at this distance was about a month ago. Before this, 412yds is the longest I've shot. Shooters are not allowed down range past 100yds. and steel plates are placed from about 140yds randomly to 1050yds. I've been 3 times total now and it has peaked my interest to say the very least.

Hope some of this makes sense. Any more questions...just ask.

If you have anything you might want to recommend, I'm all ears.

Thanks

 

[BowChamp]

If your not slinging the rifle or worrying about accidentally bumping the mag release lever when walking in the woods with it, most bottom metals will work fine. Accurate mags (no binder) are what I use. You won't want binder plates if your shooting 1000 yard with the 6.5CM in the event you shoot 140-150 grain bullets.

I'm finding out If I go without binders, I'll need to mill down the feed ramp on my action to allow clearance for the rounds to feed up and into the chamber. I'm thinking I'll have my smith do this so I can shoot whatever I want.

 

[284winner]

I'm finding out If I go without binders, I'll need to mill down the feed ramp on my action to allow clearance for the rounds to feed up and into the chamber. I'm thinking I'll have my smith do this so I can shoot whatever I want.

Seems odd. So it sounds like the added wall of the binder, aids in pushing the bullet up faster and into the chamber/feed ramp ? Without the binder wall it goes further forward before it rises into the chamber hitting the action under the ramp, yes ?

 

[BowChamp]

Seems odd. So it sounds like the added wall of the binder, aids in pushing the bullet up faster and into the chamber/feed ramp ? Without the binder wall it goes further forward before it rises into the chamber hitting the action under the ramp, yes ?

Yes Sir...that sounds about right. The video above in post #4 helps explain also.

 

[284winner]

Yes Sir...that sounds about right. The video above in post #4 helps explain also.

I can see that being the case. No pun intended

 

[LuvDog]

With an unmodified R700 ADL donor action. You will either need mags with binder plates or you'll need the feed ramp notched/milled to work with AICS mags without a binder plate.

As for mags, the only real way to know what will work with your action in your stock is trial and error.

I had some Tikka's that would only work well with polymer mags. I tried metal mags from all different places and PMAGs worked the best.

In most of my actions, MDT mags worked the best for metal mags. You will most likely have to play with mag catch length no matter what.

 

[BowChamp]

With an unmodified R700 ADL donor action. You will either need mags with binder plates or you'll need the feed ramp notched/milled to work with AICS mags without a binder plate.

As for mags, the only real way to know what will work with your action in your stock is trial and error.

I had some Tikka's that would only work well with polymer mags. I tried metal mags from all different places and PMAGs worked the best.

In most of my actions, MDT mags worked the best for metal mags. You will most likely have to play with mag catch length no matter what.

Thank you Sir....good information.

 

[WSnyder]

“BLINDER” plate is the correct spelling and the original Accuracy Intentional term for the plate installed in the magazine although I have seen “blinder plate” referenced as to others magazines before the AI AICS. The magazines in this discussion are based on the original Accuracy International AICS magazines. No Blinder plate mags allow for a longer OAL which is too long for Remington SA and many clones. In order to use no blinder plate mags an ~.100” notch needs to be cut at the front of the mag opening in the action at the base of the feed ramp. Been like that for a very long time now.

 

[BowChamp]

“BLINDER” plate is the correct spelling and the original Accuracy Intentional term for the plate installed in the magazine although I have seen “blinder plate” referenced as to others magazines before the AI AICS. The magazines in this discussion are based on the original Accuracy International AICS magazines. No Blinder plate mags allow for a longer OAL which is too long for Remington SA and many clones. In order to use no blinder plate mags an ~.100” notch needs to be cut at the front of the mag opening in the action at the base of the feed ramp. Been like that for a very long time now.

Thank you Sir for the information. Not sure if I'm going to need the extra length or not but now I can make a better choice.

I try to learn something new each day and now I can add this to my list.

 

[WSnyder]

Here’s a few photos of various magazines and two action cuts. All of them are short action AICS pattern mags. Remington 700 and BAT Igniter notches.

 

[BowChamp]

Here’s a few photos of various magazines and two action cuts. All of them are short action AICS pattern mags. Remington 700 and BAT Igniter notches.

View attachment 1569564View attachment 1569565View attachment 1569566

Thanks for the pictures....really helps explain things.

If I mill my receiver so it can feed the longer rounds, will it cause any issues with feeding the shorter rounds?

Thanks!

 

[WSnyder]

If I mill my receiver so it can feed the longer rounds, will it cause any issues with feeding the shorter rounds?

Nope, it shouldn't matter at all. If the feed lips are correct the tip of the bullet will touch the feed ramp above the notch as it slides forward when being chambered. I notch all of mine when going through the action regardless of which magazine I may use.