Hi guys. Long time no see.
As the title implies, I'm getting ready for northern MN = 150yd or less shots, deer season. Last year I took 123 Amax over AR-Comp loads, but never got a shot from the Grendel, which is my backup rifle. Truth be told, most shots where I go are brushy 50 yds and in, so my primary weapon is my 450 Bushmaster punching 200gr Barnes XPBs. Devastating load and plenty lethal for white tails with that frontal area, but I'm not here to argue that one.
This year, I'm going with 120 TTSX over AR-Comp. Keep in mind that deer season can be 50 degrees or -15, so I like AR-Comp for obvious reasons. Anyway, I only have one box of 50 to play with and still have enough left over for hunting.
For my AA Grendel chamber, 1-fired AA brass holds 36.5gr water and the TTSX hit the lands at 2.315. So I'm looking at 26gr AR-Comp and 2.26 COL, yielding a jump of .055. QL predicts 2587fps from my 24" barrel and results with the 123 Amax came in very close to what QL predicted they would launch at using AR-Comp. FWIW, 26gr at 2.26 COL is very close to the predicted 100% case capacity for that bullet, which IMHO, is always a plus.
Still, being a prudent man, I'll start a grain lower (2500fps QL predicted) and work up. My experiment with 100gr TTSX and AR-Comp led me to the conclusion that AR-Comp is too slow for that weight. Then again, what's not to love about 8208 and the 100gr TTSX if I were going that route? The whitetails grow big up here, hence the decision to go with the 120's.
Should I load for a greater jump?
Anyone tried the 120 TTSX with AR-Comp already?
Thanks,
Hoot
As the title implies, I'm getting ready for northern MN = 150yd or less shots, deer season. Last year I took 123 Amax over AR-Comp loads, but never got a shot from the Grendel, which is my backup rifle. Truth be told, most shots where I go are brushy 50 yds and in, so my primary weapon is my 450 Bushmaster punching 200gr Barnes XPBs. Devastating load and plenty lethal for white tails with that frontal area, but I'm not here to argue that one.
This year, I'm going with 120 TTSX over AR-Comp. Keep in mind that deer season can be 50 degrees or -15, so I like AR-Comp for obvious reasons. Anyway, I only have one box of 50 to play with and still have enough left over for hunting.
For my AA Grendel chamber, 1-fired AA brass holds 36.5gr water and the TTSX hit the lands at 2.315. So I'm looking at 26gr AR-Comp and 2.26 COL, yielding a jump of .055. QL predicts 2587fps from my 24" barrel and results with the 123 Amax came in very close to what QL predicted they would launch at using AR-Comp. FWIW, 26gr at 2.26 COL is very close to the predicted 100% case capacity for that bullet, which IMHO, is always a plus.
Still, being a prudent man, I'll start a grain lower (2500fps QL predicted) and work up. My experiment with 100gr TTSX and AR-Comp led me to the conclusion that AR-Comp is too slow for that weight. Then again, what's not to love about 8208 and the 100gr TTSX if I were going that route? The whitetails grow big up here, hence the decision to go with the 120's.
Should I load for a greater jump?
Anyone tried the 120 TTSX with AR-Comp already?
Thanks,
Hoot
Comment