Ball NPS Score: Not Available
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Who else but Columbia 300® could combine the crucial elements of power and performance so beautifully? The new ReactionTM Ricochet and Roll are the result of two years of R&D testing and development, with one goal in mind - to create a two ball arsenal that provides superb hooking power with increased durability. The Reaction Roll is designed for heavy oil in the front and midlane, producing a strong curve and continuous backend reaction. This all made possible by and enhanced version of our TECTM coverstock called MegaTECTM. The Reaction Ricochet was developed to provide maximum backend reaction on most common lane conditions. Its pearlized reactive coverstock is enhanced with an explosive combination of TEC2TM and Holo-FlexTM particles. The Reaction Ricochet and Roll. Whichever one you use, you'll agree Columbia 300 has truly developed the formula for success.  Specs for the REACTION Roll are: Coverstock: MegaTECTM Factory Finish is a 600 Grit Sheen Finish; Core: Dense core body, Medium dense energy flip blocks; RG: 2.490; Differential .043; Hook: 30 Flare: 4" - 6"

Columbia just hit the jackpot of massive hook with this ball.
I drilled mine 4x2 with a 320 compound shine and what a great
roll and large hook. This ball does not give up when lost right
and gives tremendous carry on off hits. Angle of entry is still
hard left even playing left of 3Rd arrow.

I had this ball drilled last week for very heavy oil. I picked a layout where the backend reaction of this ball would be roll, that way it wouldn't squirt on heavy oil. It had a 4 inch pin with 2 3/4 ounces topweight.

I tried this ball on freshly oiled synthetic lanes. The shot is a basic wet-dry with the insides pretty heavily oiled and the outside dry. I found that with the Reaction Roll, even keeping it inside of 5 this ball was still way too much. I was standing 25, which is much further left than i normally stand and was throwing from 15 to 7 and having trouble keeping the ball from coming up heavy or crossing.

But when i did keep it on the right side of the head pin the hit was good and the carry was good without any 10 pins. And I do have to say that the hook was definately stronger with the Reaction Roll than my Red Monster and my Trauma ER.

Overall I would have to say this ball is an excellent ball to have in your bag for heavy oil. I give it a 9.99 out of 10 because of its tremendous hook.

I just received the Roll Tuesday. I bowled in league Thursday night. The ball surprised me a bit. I throw mid 16's to 17 mph with medium hand. I was told it hooked more than a Rock On, which I currently have, they were right. Other people in the league had problems getting the ball to get back to the pocket. I did not. I stood at 30 and swung it from 15 out to 8 and it came back and hit like a freight train. Good ball for heavy oil and carry down. Put it away for the second shift or fried heads. I give this ball a solid 9 out of 10.

This ball hooks alot on heavy oil but one of the weakest hitting ball i ever throw.

my ball is drilled with the pin at 2 oclock and the cg dropped 3 inches below it .....the ball really starts to hook in the midlane where you want a heavy oil ball to work.the roll is predicatble and arc's nicely to the pocket.the lanes i play on are med to heavy conditions so i applied a light coat of polish.i think the ball goes a little longer and its not so aggresive and therefore for me more predictable.if you play tournaments,i would suggest having this ball in your bag.when the conditions call for a ball that moves in oil and will finish,this is the one.i love the rock on,but this ball will roll earlier and be better when they flood the lanes.

I drilled this ball to compliment my Reaction Ricochet and Reaction RIP.  I needed something that started a bit sooner, and would cut through carrydown and heavier patterns, but not hit like fluffy marshmallows (**cough**BRUNSWICK**cough**).

Out of box specs:  pin out 3", 3 3/4 oz. top weight, 15.3 lbs.

My Ricochet and RIP are both layed out in a 5 x 5 pattern, that gives good length and smooth backend turn.  I wanted this ball to start sooner and roll harder, but didn't want to vary too far from this layout.  Its worked great on both the Ricochet and RIP, so I just slightly altered it for the ROLL.

I set the ROLL up in a 5 x 5 1/2 pattern, pin just above the ring finger, CG in grip center, and mass bias right next to thumb on weak (left) side.  This put the mass bias in my track.

DEFINITELY A WINNER!  Used the ROLL in a college tournament this weekend for the first time.  My Ricochet wasn't finishing, and my Rock-On just rolled out on me.  With this ball I was sliding on 25 and pitching over 15 at the arrows.  The ROLL made it out to around 10, and at about 42 feet turned over and mowed thru the pocket.  SWEET roll, intense carry.  When it hits the pocket, there is nothing that can stop it.  I left a few 10 pins, but no 8s or 9s, despite how hard the ball hit.

Had to put it up after the 2nd game, I had to move too deep for it to retain enough energy.  Thats to be expected though, with an agressive ball like this.  Only negative-did not swish pins very well for such a powerful reaction.  Light hits resulted in lots of 7 pins. Other that, a real winner.

9 out of 10, loses a point for versatility, but DEFINITELY the ball for long, heavy patterns.  I've never had a ball that rolls like this.  Very nice job Columbia for developing the BEST arsenal I've ever seen.  By far, REACTION is the most complete line I've ever had.  I'm not sure where the ARC will fit in, but might have to try it anyway.

OIL, you will need lots of it. I have never thrown a ball that hooks like this. The Roll has the consistency that Columbia normally has in their equipment.

This ball hits hard, has a great drive though the pins and and tremendous arc into pocket.

The one thing about it that bothers me is that it is very high maintenance. You have to clean it and clean it often......and sand it......because this thing soaks oil up like there is no tomorrow

Great ball, columbia did a great job here This ball is a stron 9 out of 10