6.5 Grendel Forum
T/C Encore and Match Grade Machine - Printable Version

+- 6.5 Grendel Forum (https://65grendel.com)
+-- Forum: 6.5 GRENDEL DISCUSSION FORUMS (https://65grendel.com/forumdisplay.php?fid=3)
+--- Forum: 6.5 Grendel Bolt Actions & Single Shots (https://65grendel.com/forumdisplay.php?fid=17)
+--- Thread: T/C Encore and Match Grade Machine (/showthread.php?tid=22413)



T/C Encore and Match Grade Machine - BowChamp - 11-30-2020

A while back I came into possession of an encore 50 cal. muzzleloader. I have no use for a muzzleloader so I'm thinking it would make an excellent 6.5 grendel for a young man I know. I've been doing some digging and came up with MGM for a barrel. It will be a couple months before I order. I'm thinking I'll go with a 18" to 20" heavy factory contour barrel and threaded for muzzle device.

Just wanted to know if anyone here has had any experience with MGM and their barrels. If so, could you let me know what you think.

Thank You Smile


T/C Encore and Match Grade Machine - Stinky Coyote - 11-30-2020

i think this would be a great direction to go, i have researched a g2 contender build with mcm barrel, what i can tell the balance and handling is much preferred with 24" full contour barrels as the guys who've chased ultralight builds have learned the hard way and much prefer with such a short lightweight option to begin with to keep some weight out there a ways, the aftermarket also has an m4 pistol grip to buffer tube adapter so one can use AR butt stocks, so can build one with carbine buffer tube and magpul ctr and fit anyone, kids etc. throw a nice little leupold vx3i 2.5-8x36 on it and have a great little rig that would excel for all but maybe coyote calling where a repeater is much preferred


T/C Encore and Match Grade Machine - Cornbread - 11-30-2020

I have one in 350 rem mag on an encore. When I got the barrel the part that resets the trigger was very tight and would not reset 100%. I just worked it with some kroil and it loosened right up. No further issues. I got the stainless heavy factory contour and it shoots really well. Sub moa with my hand loads.


T/C Encore and Match Grade Machine - BowChamp - 12-01-2020

Stinky Coyote Wrote:i think this would be a great direction to go, i have researched a g2 contender build with mcm barrel, what i can tell the balance and handling is much preferred with 24" full contour barrels as the guys who've chased ultralight builds have learned the hard way and much prefer with such a short lightweight option to begin with to keep some weight out there a ways, the aftermarket also has an m4 pistol grip to buffer tube adapter so one can use AR butt stocks, so can build one with carbine buffer tube and magpul ctr and fit anyone, kids etc. throw a nice little leupold vx3i 2.5-8x36 on it and have a great little rig that would excel for all but maybe coyote calling where a repeater is much preferred

Balance is one of my concerns. I've seen several encores built with short 16" barrels and was thinking "That can't be balanced very well". If I go with a 24" barrel would a 1 in 8 twist or 1 in 9 twist be a better choice??
I saw the stock adapter you mentioned, it does look like a good option for a stock.
What are your thoughts on a muzzle brake/comp with a 24" barrel??? If I get it threaded, I have the choice of using one or not.


T/C Encore and Match Grade Machine - BowChamp - 12-01-2020

Cornbread Wrote:I have one in 350 rem mag on an encore. When I got the barrel the part that resets the trigger was very tight and would not reset 100%. I just worked it with some kroil and it loosened right up. No further issues. I got the stainless heavy factory contour and it shoots really well. Sub moa with my hand loads.

350 Rem. Mag....Nice!!!

Glad to hear about the accuracy. That is what I've been finding with all my searching around.


T/C Encore and Match Grade Machine - GregP42 - 12-01-2020

MGM is first class on Contender barrels. I have one in 6.5 Grendel on my Contender and it shoots better than I can.

Greg


T/C Encore and Match Grade Machine - FW Conch - 12-01-2020

I have one on My Contender in 6.8 SPC. It is a well made barrel and shoots well.


T/C Encore and Match Grade Machine - Stinky Coyote - 12-01-2020

BowChamp Wrote:Balance is one of my concerns. I've seen several encores built with short 16" barrels and was thinking "That can't be balanced very well". If I go with a 24" barrel would a 1 in 8 twist or 1 in 9 twist be a better choice??
I saw the stock adapter you mentioned, it does look like a good option for a stock.
What are your thoughts on a muzzle brake/comp with a 24" barrel??? If I get it threaded, I have the choice of using one or not.

if i lived in usa where i could get a suppressor for it i would get it threaded, up here in canada the likelihood of us ever making suppressors legal is next to nil, so i would order the barrel without threads, i've had my stint with muzzle brakes, won't use them again, wear muffs on the range and i don't wear anything for hunting, as for recoil, not enough in the grendel for a brake imo


T/C Encore and Match Grade Machine - BowChamp - 12-06-2020

Any one have recommendations on the rate of twist verses barrel length?


T/C Encore and Match Grade Machine - VASCAR2 - 12-09-2020

On shorter barrels I think Bill A. research showed faster twist was desirable. AA uses 1.7.5:1 on 16” or shorter and might be used on AA 18” barrels. The most common twist today is 1:8 but back in 2010 1:9 was very common but is not ideal for the current long high BC 6.5/.264 bullets.

If you know projectiles your going to use there is the Berger twist calculator. Temperature and elevation play a part in how bullets stabilize.

https://bergerbullets.com/tag/twist-rate-calculator/


T/C Encore and Match Grade Machine - BD264 - 12-13-2020

I hate to be the negative post in here, but I'm on my third MGM barrel in 6.5 PRC.

First barrel, 22" blued 1:8 twist. Problem, bad chamber with excessive headspace and badly fluted from reamer chattering.

MGM replaced the first with the second barrel. 24" blued 1:8 twist, threaded 5/8×24 for my suppressor. Barrel lost accuracy at 201 rounds. Problem, excessive fire cracking extending 10" past the throat. Headspace was 10 thou bigger than factory ammo from the get go, resulting in case head separations after two reloads. MGM theorized that the metallurgy was bad on it.

MGM replaced barrel two with barrel three. Barrel three is also 24", but 7.5 twist and in stainless steel with 5/8×24 threaded. Headspave is tighter on this barrel at only plus 5 thou over a factory round, so a little better. Only have 8 shots through it so far as factory ammo is super hard to find right now.

The plus side, MGM has been super great on getting the first two barrels taken care of.