A ROLLSIZER is a case resizer that removes any bulges that might be created by some chambers with brass expanding during firing and returns it a true concentrical state very close to original specs. It does this by passing it by a cam-like mechanism as the casing rotates,…or rolls.
I came across the use of this type of resizer when speaking with a friend attempting to achieve his Grandmaster status. He is at the local range 2-3 times a week, on top of his weekly competitive shoots. He reloads his ammo but can not afford a misfeed at a competition.
When talking to him about not firing commercial ammo in his competition I commented he was better off buying factory ammunition. He responded that with proper resizing he can achieve 99% efficiency. That made sense to me as I believe case prep is always the more critical part of the process (next to your powder dump of course).
Well, what is roll sizing? Why is it different from just using a traditional resizing die? Yes, I said “just” because you still need to pass the case through a traditional resizing die. The ROLLSIZER will reshape the majority of the body to very close to concentric specifications. The important part is that it will be concentric to the shoulder. When using a resizing die you will reshape the case but it will not necessarily be equally concentric to the shoulder, as the case holder can move just slightly and might be off slightly relative to the body. So, passing through the ROLLSIZER gets the entire case back to an equally concentric spec, equally throughout the case.
UNBOXING AND SETUP
Unboxing and setup of the ROLLSIZER is pretty simple as it arrived 75% assembled. It is as follows:
- Attach handle. Simple Allen wrench does the job
- Install the Caliber conversion disc. Also simple Allen wrench.
- Install and adjust the drop hose. The height should be where the second case to be roll sized just has its rim showing, the rest of the casing is in the tube.
- Mount unit in an appropriate place.
The ROLLSIZER weighs 4.5 kilograms (about 10 lbs) and its dimensions are as follows: 270mm (10.6″) × 250mm (9.8″) × 230mm (9″).
Once you have the ROLLSIZER set up, using it is simple: turn the crank and resize. Although you can feel the cases that have a bulge, it is just a slight increase in resistance. The gearing within the ROLLSIZER is set up so it takes minimal effort to turn, however realize it takes a number of turns to process each case. There is the option of connecting an electric drill to the crank and significantly increase your production rate. The new uniformity showed itself when passing it through the resizing dies. The resizing has much less resistance than usual.
Although the mounting plates may appear thin to some, when mounted, the ROLLSIZER does not move or twist. Even turning the crank as fast as I possibly can, there is no movement in the stationary part of the ROLLSIZER.
In viewing the entire unit, it is well made and very easy to use. It is durable and well machined. Some may view the price a little steep, but after playing with it, I see that they have invested a good amount of finances into the production. It is all well-machined metal. You get quality manufacturing.
A video of the ROLLSIZER in action:
TFB Review: The Rollsizer, Roll Sizing Your Brass
Although the ROLLSIZER may not be for everyone, if you are reloading and worried about feeding issues and/or improved efficiency this is the way to get there. Although it is an additional step in your case prep, it is a very quick easy step and it brings you closer to a concentric full spec cartridge. I think for competitive shooters who reload this is a must. My friend’s 99% success rate with his reloads is a testament to that.
The ROLLSIZER unit sent to me retails for $700 . This may shy some people away, but it does its job very well and efficiently. I found it very well manufactured, sturdy and robust. No plastic parts, so no attempts to cut corners. I find it well worth the investment. They do offer a unit with a motor attached, with a reverse option built-in. It is the same base unit, which shows its durability.
Currently, the caliber options offered are 380 ACP, 9mm, 38S/SC, 357SG/40CAl, 45ACP, 38SP/357mag, 308 and 223/5.56 in rifle calibers.
What are your guy’s opinions on roll sizing? Anyone own a ROLLSIZER?