AR Reload Help

[jmeghunts]

I'm loading 55 gr V-Max, 18" barrel, 1-9 twist using Accurate 2015 in Lake City brass. I'm not having much luck grouping these. Will you guys post up your go to varmint loads please? Preferably using the same barrel I have if possible. Thanks!

[zac221]

55gr Blitzking 2.260" COAL 24.5gr IMR 3031 Lake city brass trimmed to suggested min length. Works in everything I've tried. 25.5 is Max so do build up.

[jmeghunts]

Thx! Anybody else?

[Gummi Bear]

My brothers load is 24.8gr of Varget pushing a 69gr SMK out of his Rock River, 1:8 twist

My Dads load is 25.8gr of Varget pushing a 65gr Gameking out of his Colt, 1:8 twist

Both are using FC cartridges, 2.26" COAL. I cleaned the flash hole, squared the primer pocket, annealed the brass and then loaded them up. Ladder test rounds showed a lot of promise.

Working now to develop some plinker rounds using H335 and 55gr Hornady spitzers. Probably gonna be 2-3 months before I have good results.

[Jourdan_D]

55gr vmax
LC brass
Cci 400
26.5 gr 748
2.260

A dime covers a 5 shot group at 100. 16 barrel 1-9 twist

[txstringbender]

I use the 55 gr. V-Max. The only powder I burn in my AR (Remington R-15), is Ramshot TAC. Super clean burning, meters well, and very consistent. It shoots sub MOA at 100 yds.

[Coyote EMT]

I shoot the 53gr vmax out of my Rem 700 1:12

26.5 gr Varget over rem 6 1/2 primers COAL 2.255

These rounds also shoot great in the Stag Arms 24" 1:8 AR I built.

[lbbf]

Shooting a 52gr Hornady BTHP with 25gr of IMR 4064. I do load COAL a little short with 2.205. Rock River 20" Varmit barrel with 1 in 8 twist. Best 5 shot group so for is 0.3".

[jmeghunts]

Shooting a 52gr Hornady BTHP with 25gr of IMR 4064. I do load COAL a little short with 2.205. Rock River 20" Varmit barrel with 1 in 8 twist. Best 5 shot group so for is 0.3".

I've always increased seating depth to get more accuracy but I wonder if I seat deeper would it increase? I may try that just to say I did.

[LWD]

I've always increased seating depth to get more accuracy but I wonder if I seat deeper would it increase? I may try that just to say I did.

You're thinking of this backwards. Closeness to the lands can increase accuracy. However, some guns and loads shoot better with a little "jump" to the lands. However, adjusting either way off COAL can increase pressure. Getting close to or into the lands can cause a pressure spike. Seating deeper into the case can cause a pressure spike because the internal case volume is reduced. Only adjust seating depth if you really know what you are doing and pay careful attention for pressure spikes.

LWD

[jmeghunts]

You're thinking of this backwards. Closeness to the lands can increase accuracy. However, some guns and loads shoot better with a little "jump" to the lands. However, adjusting either way off COAL can increase pressure. Getting close to or into the lands can cause a pressure spike. Seating deeper into the case can cause a pressure spike because the internal case volume is reduced. Only adjust seating depth if you really know what you are doing and pay careful attention for pressure spikes.

LWD

I don't think I'm doing anything backwards. I always start with recommended COAL and work out to the lands until I get it just right. I have never worked my way down from COAL but it's worth a try. The case capacity on the load data is only 80% +- so I have plenty to play with.

[Bradley]

Hornady 55 gr V-max over 25 grains of varget with lake city brass.

[LWD]

I don't think I'm doing anything backwards. I always start with recommended COAL and work out to the lands until I get it just right. I have never worked my way down from COAL but it's worth a try. The case capacity on the load data is only 80% +- so I have plenty to play with.

No, I said you're thinking of it backwards—or at least describing it backwards. Moreover, when going under COAL, it's not the load density that matters, it's the volume of the cartridge. When the bullet intrudes into the case, there's less space for the powder to burn increasing pressures. This happens whether the load is compressed or only filling 80% of the case.

LWD

[jmeghunts]

No, I said you're thinking of it backwards—or at least describing it backwards. Moreover, when going under COAL, it's not the load density that matters, it's the volume of the cartridge. When the bullet intrudes into the case, there's less space for the powder to burn increasing pressures. This happens whether the load is compressed or only filling 80% of the case.

LWD

I understand all that, what I was stating in my previous post was this: I have always moved closer to the lands to gain accuracy, I have never had occasion to move away from the lands to gain accuracy.

[jmeghunts]

Got some CFE223 and Berger 55gr today. Gonna try a new load.