Home Forums Hunting & Shooting Long Range Hunting 230 OTM Tacticals

Scored 600 210 gr Nosler ABLR, test comparisons between the two to begin shortly.

BTW, just been eyeballing the two and despite what the box says, I dont believe the 210 ABLR to have a higher G1 than the 230 OTM, G7 on the Noz wont be that high either.

Flight will tell the rest of the story.

What does OTM stand for?


Mike

"Open Tip Match"

Ah thanks Gunner

Yo welcome.

2900 is cruisin out of a 300 win. I'm only getting 100fps more out of a 30-378, RUMS are running at 2950, 26" tubes.

My thoughts too, 28"s of barrel [no brake] and Retumbo seems to be getting along very well with the big 230 OTM's so far.

Foamed out the barrel after 30 rounds fired with very little fouling residue, another plus.

Gunner
I can't find the post now but Brian litz tested the BC of all the accubond long range bullets. It was very interesting and I'll try to find it. He tested a lot of rates of twist also.

The 30cal in a 10 twist were fairly close to published.

Thanks 805, sounds like a bunch of very informative reading, hope you can find and post it for us.

Litz's results were a .646 G1 and a .331 G7 in a 1-10 twist for the 210 ABLR.

Its on long range hunting forum. I just can't locate it yet.

John- do you have the chart Bryan posted? It was pretty interesting seeing the SG with rate of twist changes?

HAHA, as expected, the .730 is a bit inflated. lol

805,

Yeah, I've got the results. Don't want to post it here due to copyright stuff, but it is interesting. The ABLR that comes out best is the 129 6.5, which in a 1-8 twist is basically dead-nuts as advertised.

There's a bunch of excellent info on how twist affects BC in Bryan's latest book, MODERN ADVANCEMENTS IN LONG-RANGE SHOOTING, VOL. 1. In fact the entire book is full of great research and results. For anybody who has his first book, this one's a great follow-up and just as essential.

805, is it here at the 'fires long range hunting forum or somewhere else on the www?

Thanks
Gunner

I need to get that book, especially if I'm gonna start playing with the wind and bullets again.

Thanks for the hit MD.

Gunner here you go!
http://www.longrangehunting.com/forums/f19/nosler-lr-accubonds-bc-testing-results-137554/

John
I am planning to get his book very soon. I know Bryan is also testing the matrix bullets as well. I can't tell you how many times he has explained or helped with so many questions I've had. Great guy!

Thanks 805, 'bout bed time here, will read that in the morning over a hot quart of 115 octane joe. lol

TTT, here you go Strick9, a whole thread on the 230gr Bergers from my 300 Win Mag.